gujarat technological university, ahmedabad, … · metrology & instrumentation course code:...

Metrology & Instrumentation Course code: 3341905

GTU/NITTTR/Bhopal/13-14 Gujarat State

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GUJARAT TECHNOLOGICAL UNIVERSITY, AHMEDABAD, GUJARAT

COURSE CURRICULUM

COURSE TITLE: METROLOGY & INSTRUMENTATION

(Code: 3341905)

Diploma Programme in which this course is offered Semester in which offered

Mechanical Engineering,

Mechatronics Engineering

4th

Semester

1. RATIONALE

The students of Mechanical Engineering branch are basically concerned with manufacturing

various machine components in shops as per given drawing. Today the industrial processing

and manufacturing techniques have become complex and complicated and their control is

very much difficult by human judgment only. Therefore, the exact and precise measurements

are the basic need of the industries. This course of Metrology & Instrumentation, therefore,

provides required knowledge and skills and creates self confidence in students so that they

can work on shop floor independently for accurate and precise measurements and

manufacturing.

2. COMPETENCY

The course content should be taught and implemented with the aim to develop different

types of skills so that students are able to acquire following competency:

Select and use appropriate analog and digital measuring and gauging instruments

for a given manufacturing situation

3. COURSE OUTCOMEs (COs) The theory should be taught and practical should be carried out in such a manner that

students are able to acquire different learning out comes in cognitive, psychomotor and

affective domain to demonstrate following course outcomes.

i. Measure the given mechanical elements and assemblies using linear and angular

analog /digital measuring instruments.

ii. Check geometrical accuracy of given application.

iii. Explain surface roughness checking instruments.

iv. Measure and derive important dimensions of various thread forms and gears.

v. Select and use non destructive testing methods.

vi. Check the dimensions using the gauges.

vii. Select and measure variables using appropriate sensors and transducers.

4. TEACHING AND EXAMINATION SCHEME:

Teaching Scheme

(In Hours)

Total Credits

(L+T+P)

Examination Scheme

Theory Marks Practical Marks Total

Marks

L T P C ESE PA ESE PA

200 4 0 4 8 70 30 40 60

Legends: L -Lecture; T -Tutorial/Teacher Guided Student Activity; P -Practical; C - Credit; ESE-End Semester Examination; PA -

Progressive Assessment.



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5. COURSE DETAILS

Unit

Major Learning

Outcomes (in

cognitive domain)

Topics and Sub-topics

Unit – I

Linear and

angular

measurement

1a. Distinguish

between accuracy,

precision and

error.

1b.Determine least

count of given

measuring

instrument

1.1 Inspection, quality and quality

control-definitions and differences.

1.2 Define accuracy, precision and error.

1.3 Principle of vernier scale and least

count.

1.4 Surface plates-types, important

features, standards/important sizes,

applications and precautions in use.

1c. Select suitable

linear measurement

instrument and

measure the linear

dimension of given

component.

1.5 Types, constructional sketch, major

parts and their functions, least count ,

measuring methods and measurement

illustration (for e.g. 12.48mm)of:

i. Vernier caliper.

ii. Micrometer.

iii. Telescopic gauge.

iv. Height gauge.

v. Depth gauge.

1d. Describe the

procedure for

wring the slip

gauge and set

given dimension.

1.6 Slip gauge-types, applications, and

wringing method.

1e.Select suitable

angular

measurement

instrument

1f. Describe the

measurement

procedure for the

angular dimension

of given

component.

1.7 Sketch, major parts and their

functions, least count , measuring

methods and measurement illustration

of:

i. Bevel Protector.

ii. Sine bar.

iii. Angle gauges.

iv. Angle Dekkor.

v. Spirit level.

vi. Clinometers.

vii. Auto collimator.

1.8 Calibration – concept and need.

Unit – II

2a. Explain working

of dial indicators.

2.1 Dial indicators/gauge-types,

constructional sketch and

applications.



3

Unit

Major Learning

Outcomes (in

cognitive domain)


Measurement of

geometrical

tolerances

2b.Select the

measuring method

and describe the

measurement

procedure for

geometrical

tolerance of given

part/assembly.

2.2 Definition, symbol and measuring

methods of:

i. Straightness.

ii. Flatness.

iii. Squareness.

iv. Parallism.

v. Perpendicularity.

vi. Roundness.

vii. Concentricity.

viii. Cylindricity.

ix. Run out and ovality.

Unit – III

Measurement of

surface

roughness

3a. Define various

terminology used

for surface

roughness.

3b. Explain working

of direct

instrument

methods.

3.1 Terminology used in connection with

surface finish.

3.2 Comparison methods to inspect

surface finish-concept and

applications.

3.3 Direct instrument measurement

methods-types and concepts.

3.4 Construction, working and

applications of Talysurf surface

roughness tester and Tomlinson

tester.

3c. Determine surface

roughness of given

data.

3.5 Centre line average and Root Mean

Square systems of surface texture

evaluation-terminology used,

concept, equations and numerical

examples.

3.6 Indication of various surface

roughness characteristics with surface

roughness symbols-interpretation.

Unit – IV

Gear and thread

measurement

4a. Define various

terms used for gear

nomenclature.

4b.Use gear tooth

vernier to measure

gear tooth

thickness.

4.1 Types of gears.

4.2 Forms of gear teeth-types and

concept.

4.3 Gear tooth Terminology.

4.4 Sketch, major parts and their

functions, least count, measuring

methods and measurement illustration

of gear tooth vernier.

4.5 Derivation and numerical example to

measure gear tooth thickness using:

i Gear tooth vernier.

ii Constant chord method.

iii Base tangent method.

4c. Explain working

of profile projector.

4.6 Gear tooth profile measurement.



4

Unit

Major Learning

Outcomes (in

cognitive domain)


4d. Define various

terms used for

thread

nomenclature.

4e.Determine best

wire size.

4f. Use two and three

wire methods to

determine effective

diameter of thread.

4g.Describe method

for measuring the

pitch of given

thread.

4.7 Threads-classification, elements,

specifications and forms.

4.8 Measurement of major and minor

diameters.

4.9 Three and two wire method of

measuring effective diameter of

external thread-concept, terminology

used, best wire size, derivation of

equation and numerical example.

4.10 Thread micrometer-sketch, method

to use and determination of

dimension.

4.11 Pitch measurement methods.

Unit – V

Limit gauges,

Transducers and

sensors

5a. Select and check

the given

dimension using

limit gauge.

5.1 Limit gauges-classification, sketch

and applications.

5.2 Comparators-concept, types and

applications.

5b. Define static

characteristics of

instruments.

5.3 Instrumentation-introduction,

performance characteristics.

5.4 Static characteristics of instruments.

5c. Explain various

transducers and

sensors.

5.5 Transducers-concept, classifications,

physical quantities which can be

measured, advantages and

disadvantages.

5.6 Electrical transducers-types,

working principles and applications.

i Linear Variable Differential

Transformer (LVDT) type

pressure gauge.

ii Resistance type.

iii Capacitance type.

iv Inductance type (LVDT).

v Piezo-electric.

5.7 Sensors- classification and

applications.

Unit – VI

Non destructive

testing

6a. Explain various

non destructive

testing methods.

6.1 Non destructive testing (NDT) -

concept, need and advantages.

6.2 NDT- important methods, working

with sketch and applications.



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Unit

Major Learning

Outcomes (in

cognitive domain)


Unit – VII

Temperature,

pressure and

flow

measurement

7a. Select and

describe the

method for using

appropriate

temperature

measuring device

to measure

temperature of

given hot body.

7.1 Introduction.

7.2 Classification, working principle,

construction, working, advantages,

limitations and applications of

temperature measuring devices:

i. Mercury in glass

thermometer.

ii. Bimetallic thermometer.

iii. Resistance thermometer.

iv. Thermister.

v. Thermocouple.

vi. Radiation pyrometers.

vii. Optical pyrometers.

7b.Select and describe

the method for

using appropriate

pressure and flow

measuring device

to measure

pressure/flow.

7.3 Pressure measurement scales.

7.4 Types and applications of

manometers (only list and

applications).

7.5 Working principle, construction,

working, advantages, limitations and

applications of pressure measuring

devices:

i. Bellows type pressure gauge.

ii. Diaphragm type pressure

gauge.

iii. Bourdon tube pressure

gauge.

iv. Dead weight piston gauge.

7.6 Concept of transducer based

pressure measuring devices-

resistance type, capacitance type and

inductance type.

7.7 Classification of flow measuring

devices.



applications of volumetric flow

measuring devices:

i. Bellows type.

ii. Rotating impeller.

iii. Rotating lobs.

iv. Nutating Disc.

v. Reciprocating piston.

vi. Obstruction.



applications of velocity measuring



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Unit

Major Learning

Outcomes (in

cognitive domain)


devices:

i. Pitot tube.

ii. Orifice meter.

iii. Rota meter.

6. SUGGESTED SPECIFICATION TABLE WITH HOURS & MARKS (THEORY)

Unit Unit Title

Teaching

Hours

Distribution of Theory Marks

R

Level

U

Level

A

Level

Total

Marks

I Linear and angular

measurement 10 06 04 04 14

II Measurement of

geometrical tolerances 06 02 02 03 07

III Measurement of surface

roughness 06 02 02 03 07

IV Gear and Thread

measurement 12 04 04 06 14

V Limit gauges, transducers

and sensors 08 02 04 05 11

VI Non destructive testing 06 02 02 03 07

VII Temperature, pressure

and flow measurement 08 03 03 04 10

Total 56 21 21 28 70

Legends: R = Remembrance; U = Understand; A = Apply and above levels (Bloom’s revised

taxonomy)

Note: This specification table shall be treated as a general guideline for students and teachers.

The actual distribution of marks in the question paper may vary slightly from above table.

General Notes:

a. If midsem test is part of continuous evaluation, unit numbers I (Up to 1.6 only), II, III

and VII (Up to point number 7.6 only) are to be considered.

b. Ask the questions from each topic as per marks weightage. Numerical questions are to

be asked only if it is specified. Optional questions must be asked from the same topic.

7. SUGGESTED LIST OF EXERCISES/PRACTICALS.

The practical/exercises should be properly designed and implemented with an attempt to

develop different types of skills (outcomes in psychomotor and affective domain) so that

students are able to acquire the competencies/programme outcomes. Following is the list of

practical exercises for guidance.

Note: Here only outcomes in psychomotor domain are listed as practical/exercises. However, if

these practical/exercises are completed appropriately, they would also lead to development of



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certain outcomes in affective domain which would in turn lead to development of Course

Outcomes related to affective domain. Thus over all development of Programme Outcomes (as

given in a common list at the beginning of curriculum document for this programme) would be

assured.

Faculty should refer to that common list and should ensure that students also acquire outcomes

in affective domain which are required for overall achievement of Programme

Outcomes/Course Outcomes.

S.

No.

Unit

No.

Practical Exercises

(Outcomes’ in Psychomotor Domain) Hrs.

requi

red

1 I

Preperatory Activity:

a. S.I. basic, supplementary and derived units and

their conversions. Convert given length, area and volume

from one unit to another. (From mm to cm and m, from mm

to inch, from m to yard and foot, from mm2 to inch

2 and vice-

versa, mm3 to inch

3 and vice-versa ,etc.).

b. Convert given degree to radian and vice-versa.

c. Various drafting, surface finish and geometrical symbols.

d. Define axis, axes, centre, angles, plane, solid angle.

02

2 I

Linear And Angular Measurement:

Each student will select and bring at least such five mechanical

components which will have use of instruments specified below.

Same are to be approved by teacher. After approval, student will:

a. Sketch each component.

b. Sketch and label main parts of instruments to be used.

c. Calculate least count of the instrument/s to be used.

d. Measure and record applicable dimensions of each

component using:

i. Vernier calliper.

ii. Inside micrometer.

iii. Outside micrometer.

iv. Telescopic gauge.

v. Height gauge.

vi. Depth gauge.

vii. Bevel protector.

viii. Clinometers.

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3 I Sine Bar:

Measure angle between two planes with the help of

sine bar and slip gauges.

02

4 II

Straightness:

a. Sketch the part and setup, list the instruments used, list the

steps followed and record the observations for checking

straightness.

b. Plot straightness observations on graph paper.

02

5 II

Flatness:

Sketch the part and setup, list the instruments used, list the steps

followed and record the observations for checking flatness.

02



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6 II

Squareness, Perpendicularity And Parallity:

Sketch the part and setup, list the instruments used, list the steps

followed and record the observations for checking following.

a. Squareness.

b. Perpendicularity and Parallity.

02

7 II

Roundness, Cylindricity, Concentricity, Run Out And Ovality:

a. Sketch the part and setup, list the instruments used, list the

steps followed and record the observations for checking

roundness, cylindricity, concentricity, run out and ovality.

b. Prepare polar graph for roundness observations.

02

8 III

Surface Roughness:

a. Tabulate machining processes, and roughness values (Ra ,

mm),roughness grade number and roughness symbol.

b. Demonstrate various surfaces having different roughness

values.

c. For given component, sketch the component, judge the

roughness of surfaces and show surface roughness symbols

on applicable surfaces.

d. Measure surface roughness value of given machined surface.

04

9 IV

Gear Measurement:

a. Sketch gear tooth nomenclature.

b. Sketch gear tooth vernier and label each part.

c. Calculate chordal thickness and height of given gear.

d. Determine tooth height.

e. Measure and compare chordal thickness of given spurs gear

using gear tooth vernier.

02

10 IV

Thread Measurement:

For given external threaded part:

a. Draw nomenclature for ISO screw threads (Internal and

external both).

b. Explain and derive best wire size.

c. Sketch the part and show the dimensions to be measured.

d. Sketch the set up and instruments used to measure/derive

major diameter, minor diameter and effective diameter using

two wire and three wire methods.

e. Measure the pitch.

f. Use threaded ring gauge.

g. Record observations.

04

11 V

Limit Gauges:

a. Demonstrate use of various limit gauges.

b. Select appropriate limit gauge for given dimension/part and

check the dimension with gauge.

c. Record your observations.

02

12 V

Demonstration of Transducers and Sensors:

a. Demonstrate electrical (LVDT type, resistance type,

capacitance type, inductance type and piezo-electric.)

transducers and various sensors.

b. Sketch each demonstrated transducers and sensors and

tabulate specifications, range, resolution and applications of

each.

04



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13 VI Non Destructive Testing:

a. Demonstrate ultrasonic testing of NDT.

b. Observe and interpret X ray test of any weld joint.

02

14 VII

Temperature Measurement:

a. Sketch the set up and constructional sketch of thermocouple

used to measure temperature.

b. Measure the temperature of hot body/hot liquid with

thermocouple.

c. Record the observation.

02

15 VII

Pressure Measurement:

a. Sketch the set up and constructional sketch of pressure gauge

used to measure pressure.

b. Measure the pressure with pressure gauge.


02

16 VII

Flow Measurement:

a. Sketch the set up and venture meter used to measure flow.

b. Measure the flow with venture meter.


02

17 ALL

Mini Project and Presentation:

a. Select actual mechanical assembly from industry/real

life/scrap shop/garage/etc. (made up of at least 4 to 5

mechanical components) and get it approved by teacher.

b. Measure geometrical tolerances. Sketch setup drawing to

measure geometrical tolerances. Measure geometrical

tolerances and record the observations.

c. Dismantle the assembly, sketch the parts and measure

dimensions. Record your observations.

d. Present the work including photographs and movies of actual

project work.

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TOTAL 56

Notes:

a. It is compulsory to prepare log book of exercises. It is also required to get each

exercise recorded in logbook, checked and duly dated signed by teacher.

b. Term work report must not include any photocopy/ies, printed manual/pages, litho,

etc. It must be hand written / hand drawn by student only. Photographs/movies of

group members actually working on mini project should be allowed.

c. Term work report content of each experience should also include following.

i. Reports.

ii. Student activities.

d. Mini project and presentation topic/area has to be assigned to the student in the

beginning of the term by batch teacher. This may be assigned individually or in the

group of maximum 2 to 3 students.

e. For 40 marks ESE, students are to be assessed for competencies achieved. They

should be given following tasks. ( i and any one from ii, iii and iv.)

i. Measure the linear/angular dimensions and geometrical tolerances of

given part/assembly.

ii. Measure tooth thickness using gear tooth vernier.

iii. Measure effective diameter of given thread.

iv. Explain working of transducers and sensors.



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8. SUGGESTED LIST OF STUDENT ACTIVITIES

SR.NO. ACTIVITY

1 Visit the workshop and identify the machines and arrangements which require

geometrical tolerances.

2 Visit any industry / tool room and observe the working of inspection and testing

department. Also prepare the report.

9. SPECIAL INSTRUCTIONAL STRATEGIES

Sr.

No.

Unit

No.

Unit Title Strategies

1 I Linear and angular

measurement

Demonstrate actual instrument, video movies of

measuring methods.

2 II

Measurement of

geometrical

tolerances

Show actual assemblies require geometrical

tolerance, show measuring methods movies.

3 III Measurement of

surface roughness

Show various samples of surface textures,

videos,

4 IV Gear and thread

measurement

Demonstrate use of gear tooth vernier, videos.

Show various forms of threads, show measuring

methods movies

5 V

Limit gauges,

Transducers and

Sensors

Demonstrate limit gauges usage.

Demonstrate actual transducers and sensors,

movies, industrial visits.

6 VI Non destructive

testing Videos, PPTs, industrial visits.

7 VII

Temperature,

pressure and flow

measurement

Demonstrate actual instruments, movies,

industrial visits.

10. SUGGESTED LEARNING RESOURCES

(A) List of Books:

Sr no. Title of Books Author Publication

1 Mechanical measurements

and instrumentation

R.K.Rajput KATSON

2 Metrology and

Instrumentation

Tahir

3 Mechanical Measurement Sirohi R.S.,

Radha Krishnan H.C.

New Age International

4 Practical Engineering

Metrology

K.W.B.Sdarp Pitman

5 Engineering Metrology R.K.Jain Khanna Publications.

6 Industrial Instrumentation Donald A. Eckman

7 Industrial Instrumentation

& Control

S K Singh Tata McGrawHill



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8 Mechanical Measurement Beckwith & Buck Narosa publishing

House

9 Mechanical Measurement

and Control

D.S.Kumar Metropolitan Book

Pub.

10 Practical Engineering

Metrology

K.W.B.Sdarp Pitman

11 Mechatronics W.Bolten PEARSON

12 Gear Metrology C.A.Scoks

(B) List of equipments:

1. Surface plate, 500 x 500 mm.

2. Vernier calliper, 100 to 200mm, least count 0.01mm.

3. Vernier calliper, 100 to 200mm, least count 0.01mm, digital.

4. Inside micrometers, least count 0.01mm, 0-25mm, 25-50mm, 50-75mm.

5. Outside micrometer, least count 0.01mm, 0-25mm, 25-50mm, 50-75mm.

6. Outside micrometer, least count 0.001mm, 0-25mm.

7. Telescopic gauge- 10-100mm.

8. Height gauge- 300mm with least count 0.01mm.

9. Depth gauge- 100 mm with least count 0.01mm.

10. Bevel protector with least count 5’.

11. Clinometers.

12. Slip gauge box-

13. Sine bar- 150mm, 200mm.

14. Straight edge, 500mm.

15. Feeler gauge, radius gauge, thread pitch gauge.

16. Dial indicators magnetic stand.

17. Dial indicators, least count 0.01mm.

18. V blocks.

19. Samples of various surface textures and different surface roughness.

20. Microprocessor- stylus-probe based surface roughness testing machine.

21. Microscope to compare various textures and surface roughness.

22. Gear tooth vernier.

23. Profile projector.

24. Set of best wires to measure thread dimensions.

25. Thread micrometers.

26. Thread pitch measuring machine.

27. Thread

28. Set of limit gauges- sorted sizes, plug gauges, thread ring gauges and snap

gauges.

29. LVDT type, resistance type, capacitance type, inductance type and piezo-

electric type transducers.

30. Sensors, position, proximate, velocity, force/strain,

31. Thermocouple.

32. Bourdon pressure gauge.

33. Venturimeter.



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(C) List of softwares/ learning websites:

a. http://en.wikipedia.org/wiki/Metrology (metrology).

b. https://www.youtube.com/watch?v=4hlNi0jdoeQ (vernier).

c. https://www.youtube.com/watch?v=FNdkYIVJ3Vc(vernier).

d. https://www.youtube.com/watch?v=O8vMFFYNIfo (micrometer)

e. https://www.youtube.com/watch?v=h98HPVuWjLA (depth micrometer)

f. https://www.youtube.com/watch?v=SmXfGan_NXQ (telescopic gauge)

g. http://www.authorstream.com/Presentation/007sandeepks-1858141-angular-

measurment/ (angular measurement).

h. http://askguru.net/t-Angular-Measurement-ppt

i. https://www.youtube.com/watch?v=aBzh6i5fQ70 (surface roughness)

j. https://www.youtube.com/watch?v=S7SXD6sKQ-I(surface roughness)

k. https://www.youtube.com/watch?v=eVpoJzLJa0U(surface roughness)

l. https://www.youtube.com/watch?v=3Od7vnoMwGg(surface roughness)

m. https://www.youtube.com/watch?v=XnLiTPGE6pk (three wire thread

measurement)

n. https://www.youtube.com/watch?v=Gdvtw0pTAOs (thread pitch).

o. https://www.youtube.com/watch?v=qMgXGedDffw (dial indicator)

p. http://www.authorstream.com/Presentation/donzvasanth-1501139-unit-2-

linear-angular-measurement/

q. http://en.wikipedia.org/wiki/List_of_gear_nomenclature#Addendum (gear

nomenclature).

r. https://www.google.co.in/search?q=gear+tooth+vernier+caliper&tbm=isch

&tbo=u&source=univ&sa=X&ei=MIuEUsqSOsiKrQeywIFQ&ved=0CCgQ

sAQ&biw=1600&bih=804 (gear tooth vernier).

s. http://www.youtube.com/watch?v=lc4dsNvm2Ks (principle of mech. meas).

t. http://www.youtube.com/watch?v=nv3GuJArjNU (Transducers).

u. http://www.youtube.com/watch?v=iMIzApq1CQ0 (pressure measurement).

v. http://www.youtube.com/watch?v=JKuoQ5FV2c8 (temperature meas.).

w. http://www.youtube.com/watch?v=GNOI_7ftbQ0(temperature meas.) .

x. http://www.youtube.com/watch?v=7xUdPVpafyI (flow measurement).

y. http://www.ignou.ac.in/upload/Unit-4-62.pdf (limit gauges).

z. http://www.scribd.com/doc/55242715/8/Types-of-limit-gauges

aa. http://www.youtube.com/watch?v=v25PCV_IJCw (sensors)

bb. http://www.youtube.com/watch?v=QItuf6lNvmI(sensors)

cc. http://www.youtube.com/watch?v=pOvTyvBqzgM (displacement sensors)

dd. http://www.youtube.com/watch?v=inLkCOwVgyM (force sensors)

ee. http://www.youtube.com/watch?v=jxv0ITAr74A(force sensors)

ff. http://www.youtube.com/watch?v=0MP_9n08urA(force sensors)

gg. http://www.youtube.com/watch?v=zAddvPHfKnw(force sensors)

hh. http://www.youtube.com/watch?v=_fQSMVf3hdM (calibration).

ii. http://www.youtube.com/watch?v=HwSxBRaxn_4(calibration).

jj. http://www.youtube.com/watch?v=ZymDMUuVuyY (geometrical Tol.)

kk. http://www.gobookee.org/measurement-of-geometric-tolerances-in-

manufacturing/

ll. http://www.me.metu.edu.tr/courses/me410/exp1/410exp1theory.pdf

mm. http://www.youtube.com/watch?v=5eaSkU6Ecik (flatness measurement)

nn. http://www.youtube.com/watch?v=1tBnpzyhVXU (measuring straightness)

http://en.wikipedia.org/wiki/Metrology

https://www.youtube.com/watch?v=4hlNi0jdoeQ

https://www.youtube.com/watch?v=FNdkYIVJ3Vc

https://www.youtube.com/watch?v=O8vMFFYNIfo

https://www.youtube.com/watch?v=h98HPVuWjLA

https://www.youtube.com/watch?v=SmXfGan_NXQ

http://www.authorstream.com/Presentation/007sandeepks-1858141-angular-measurment/

http://www.authorstream.com/Presentation/007sandeepks-1858141-angular-measurment/

http://askguru.net/t-Angular-Measurement-ppt

https://www.youtube.com/watch?v=aBzh6i5fQ70

https://www.youtube.com/watch?v=S7SXD6sKQ-I

https://www.youtube.com/watch?v=eVpoJzLJa0U

https://www.youtube.com/watch?v=3Od7vnoMwGg

https://www.youtube.com/watch?v=XnLiTPGE6pk

https://www.youtube.com/watch?v=Gdvtw0pTAOs

https://www.youtube.com/watch?v=qMgXGedDffw

http://www.authorstream.com/Presentation/donzvasanth-1501139-unit-2-linear-angular-measurement/

http://www.authorstream.com/Presentation/donzvasanth-1501139-unit-2-linear-angular-measurement/

http://en.wikipedia.org/wiki/List_of_gear_nomenclature#Addendum

https://www.google.co.in/search?q=gear+tooth+vernier+caliper&tbm=isch&tbo=u&source=univ&sa=X&ei=MIuEUsqSOsiKrQeywIFQ&ved=0CCgQsAQ&biw=1600&bih=804%20(gear



http://www.youtube.com/watch?v=lc4dsNvm2Ks

http://www.youtube.com/watch?v=nv3GuJArjNU

http://www.youtube.com/watch?v=iMIzApq1CQ0

http://www.youtube.com/watch?v=JKuoQ5FV2c8

http://www.youtube.com/watch?v=GNOI_7ftbQ0

http://www.youtube.com/watch?v=7xUdPVpafyI

http://www.ignou.ac.in/upload/Unit-4-62.pdf

http://www.scribd.com/doc/55242715/8/Types-of-limit-gauges

http://www.youtube.com/watch?v=v25PCV_IJCw

http://www.youtube.com/watch?v=QItuf6lNvmI

http://www.youtube.com/watch?v=pOvTyvBqzgM

http://www.youtube.com/watch?v=inLkCOwVgyM

http://www.youtube.com/watch?v=jxv0ITAr74A

http://www.youtube.com/watch?v=0MP_9n08urA

http://www.youtube.com/watch?v=zAddvPHfKnw

http://www.youtube.com/watch?v=_fQSMVf3hdM

http://www.youtube.com/watch?v=HwSxBRaxn_4

http://www.youtube.com/watch?v=ZymDMUuVuyY%20%20(geometrical

http://www.gobookee.org/measurement-of-geometric-tolerances-in-manufacturing/

http://www.gobookee.org/measurement-of-geometric-tolerances-in-manufacturing/

http://www.me.metu.edu.tr/courses/me410/exp1/410exp1theory.pdf

http://www.youtube.com/watch?v=5eaSkU6Ecik

http://www.youtube.com/watch?v=1tBnpzyhVXU



13

oo. http://www.youtube.com/watch?v=1JNCe9fwRUw (measuring

perpendicularity)

pp. http://www.youtube.com/watch?v=eJ8a0k8kQIE( Roundness and

cylindricity)

qq. http://www.youtube.com/watch?v=V0R5GVCxBy4 (NDT)

11. COURSE CURRICULUM DEVELOPMENT COMMITTEE

Faculty Members from Polytechnics:

Prof. A. M. Talsaniya, Lecturer in Mechanical Engineering, Sir B.P.I., Bhavnagar.

Coordinator and Faculty Members from NITTTR Bhopal.

Dr. K.K. Jain, Professor and Dean, Department of Mechanical Engineering.

Prof. C.K. Chugh, Professor, Mechanical Engineering, NITTTR, Bhopal.

http://www.youtube.com/watch?v=1JNCe9fwRUw

http://www.youtube.com/watch?v=eJ8a0k8kQIE

http://www.youtube.com/watch?v=V0R5GVCxBy4

Laxmi Institute of Technology , Sarigam Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University, Ahmedabad

Academic Year : 2018-2019

ASSIGNMENT CLASS: DE MECHANICAL 4th SEM

SUBJECT: METROLOGY & INSTRUMENTATION (3351905)

Unit – I Linear and angular measurement

1. Classify linear measuring instrument. 2. State application of slip gauge. 3. State direct and indirect angular measuring instrument. 4. State application of spirit level. 5. Write short note on Wringing process of slip gauges. 6. Explain the working principle of auto collimator. 7. Draw neat sketch of optical clinometers. 8. Draw neat sketch of vernier height gauge. Explain working principle of vernier Height

gauge. 9. Explain the working principle of sine bar with neat sketch. 10. Find the least of the vernier with minimum of 0.5mm on main scale and

50 vernier divisions. 11. Define quality control. 12. Differentiate accuracy and precision 13. What is least count? How to find the least count of height gauge? 14. Write the uses of surface plate. 15. Draw the labeled diagram of vernier calliper. shows 36.56 mm & 37.24 mm on it. 16. Draw the diagram of slip gauge indicating 50mm and active faces Write the uses of

slip gauges. 17. How to find the least count of bevel protactor? 18. Draw the labeled of bevel protactor. Shows 12 º15’ & 62º35’ on it. 19. Explain the importance of ‘V’ mark on angle gauge. 20. Give minimum three use of angle gauge. 21. With the help of a neat sketch, explain the working principle of outside micrometer

and show 26.65 mm & 25.15 mm on it. 22. Write a short note on Optical Bevel Protractor and find appropriate angle gauges to

produce 23º49’24’’. 23. Write the functions of Telescopic gauge? 24. Differentiate the Centralized & Decentralized inspection 25. How to find the least count of micrometer? 26. Explain the Calibration of instrumentations. 27. Define: (1) Metrology (2) Inspection 28. State name of direct measuring instruments. 29. State why calibration is necessary? 30. Explain the functions of inspection. 31. Explain the need of end standard. 32. Select most appropriate slip gauges from M-112/1 set for following dimensions. (1)

34.4785 (2) 72.985 33. Explain working and application of angle dekkar. 34. Write short note on calibration of vernier caliper.





Unit – II Measurement of geometrical tolerances

1. Explain the working of dial indicator with diagram. 2. Define : Straightness. 3. Define : Roundness. 4. Define : Flatness 5. Define : Squareness 6. Explain methods of measuring flatness with diagram. 7. Explain methods of measuring Straightness with diagram. 8. Explain methods of measuring Roundness with diagram. 9. Explain methods of measuring Squareness with diagram. 10. Draw symbol of i) Roundness ii) Parallelity iii) Perpendicularity





Unit – III Measurement of surface roughness

1. Differentiate between roughness and waviness. 2. Define the following terms:

1. CLA value 2. RMS value 3. Mean line 4. Rz Number 3. What is the use of Talysurf Tester? 4. Draw the symbol of surface roughness with complete detail 5. Describe the working principle of “Tombilson surface meter”. 6. Explain working principle of stylus instruments. 7. Describe Taylor Hobson Telysurf.





Unit – IV Gear measurement

1. List the types of gear. 2. Show the important elements of spur gear & helical gear with a neat sketch. 3. Draw a neat sketch of Gear tooth terminology and list its main elements of

measurement. Define ( 1)Addendum( 2) Dedendum (3)Circular pitch (4)Thickness of tooth (5)Diametral pitch ( 6)Module (7)Pitch Circle Diameter.

4. List the elements of internal Gear. 5. Name the methods for measure Gear tooth profile. 6. Name the methods to measure gear tooth thickness. 7. Explain the measurement gear tooth thickness with diagram. 8. Explain with neat sketch “Gear tooth Vernier caliper”. 9. Draw a neat sketch of Parkinson’s gear tester. Explain working principle of

Parkinson’s gear tester.

Thread measurement

10. State name of errors in screw thread. 11. Define best wire size. State its mathematical relation. 12. Draw a neat sketch of External & Internal screw thread and list its main elements of

measurement. 13. Explain the methods to measure the effective diameter of a screw thread. 14. Define the following as related to screw thread: 1)Major diameter 2)Minor diameter

3)Effective diameter 4)Pitch 5)Lead 6)Helix angle 7)Flank 15. Explain the best wire size for thread measurements. 16. Describe three wire method for measuring an effective diameter of thread.





Unit – V Limit gauges, Transducers and sensors

1. State name of various types of limit gauges. 2. What are limit gauges? State their advantages, disadvantages and applications. 3. Write short notes on snap Gauge

4. Explain plug gauge with the help of diagram

5. What are “GO” and “NOT GO” members of limit gauges.? Sketch a ring gauge and explain them.

6. What is comparator? Classify the Comparators. 7. Explain in brief interchangeability and selective assembly.

Transducers

8. List static characteristics of instruments. 9. Define threshold, accuracy, sensitivity, resolution. 10. Name the various types of transducers. 11. Write advantages and disadvantages of transducers.

12. Write short note on dead weight piston gauge. 13. Differentiate between active and passive transducers. 14. Explain working principle of capacitance type transducer. 15. Explain LVDT. 16. Write advantages and disadvantages of LVDT. 17. Explain piezo electrical transducers.





Unit – VI Non destructive testing

1. Name the NDT methods. 2. Explain dye penetration method of testing. 3. State the advantages and limitations of Non-Destructive Testing. 4. Write short note on Non destructive testing ( NDT ). 5. Explain Ultrasonic method of testing. 6. Explain the purpose of Non-Destructive Testing.





Unit – VII Temperature, pressure and flow measurement

1. Name temperature measuring devices.

2. Explain working principle of optical pyrometer with the help of figure. Also state the advantages of pyrometer.

3. Explain the working principle of radiation pyrometer with neat sketch. 4. Draw the circuit diagram of resistance thermometer. Explain its principle and

working. 5. State application of Thermometer. 6. Explain the operation principle & working of thermocouple. 7. Differentiate between resistance thermometer and thermocouple.

Pressure Measurement

8. Draw diagram of ‘U’ tube manometer. 9. Write short note on inclined manometer. 10. Classify the pressure measuring devices. 11. List the different transducers to measure pressure & explain any one with figure. 12. With the help of a neat sketch, explain Bellow type pressure gauge. 13. Explain the working of Bourdon tube pressure gauge. 14. Explain working principle of pressure capsule.

Flow Measurement

15. Classify the different flow measuring devices.

16. Draw diagram of pitot tube and explain it. 17. Write short note on rotameter. 18. Explain the working of bellow type flow meter. 19. List the different transducers to measure flow & explain any one with figure..

Laxmi Institute of Technology , Sarigam

Approved by AICTE, New Delhi; Affiliated to Gujarat Technological University,

Ahmadabad

Academic Year 2018-19

Centre Code : 691 Examination : Mid Exam I Semester : IV

Branch: Mechanical - E Date : 01/02/2019 Sub Code : 3341905

Sub : M & I Time : 10.30 to 11.30 Marks : 20

Q-1 Answer any three. 6

1 Differentiate accuracy and precision.

2 State direct and indirect angular measuring instrument.

3 What is least count? & show 72.86 mm outside micrometer.

4 Define: (1) Metrology (2) Inspection

5

Find appropriate angle gauges to produce 39º34’24’’& Draw diagram of it.

Q-2 (A) Write how to calibration of vernier caliper. 2

OR

(A) Methods of Wringing process of slip gauges.

(B) Explain the working principle of sine bar with neat sketch. 4

OR

(B)

Draw the labeled of bevel protactor. How to find the least count of bevel protactor.

Q-3 (A)

Draw neat sketch of vernier height gauge. Explain working principle of vernier Height gauge.

4

(B) State application of slip gauge. & Select most appropriate slip gauges from M-112/1 set for following dimensions. (1) 34.4785 (2) 72.985

4

OR

(A)

With the help of a neat sketch, explain the working principle of outside micrometer.

(B)

Differentiate the Centralized & Decentralized inspection &Explain the need of end standard.

Laxmi Institute of Technology , Sarigam

Approved by AICTE, New Delhi; Affiliated to Gujarat Technological

University, Ahmadabad

Academic Year 2018-19

Centre Code : 691 Examination : Mid Exam II Semester : 4th

Branch: Mechanical Date : 29/04/2019 Sub Code : 3341905

Sub : M&I Time : 10.30 to 11.30 Marks : 20

Q-1 Answer any Five. 5

1 Define Flatness and Draw the symbol of parallelity.

2 Define CLA and RMS value.

3

Draw the symbol of surface roughness with complete detail.

4 State name of errors in screw thread.

5 State the various types of limit gauges.

6 List the types of gear.

Q-2 (A)

Draw a neat sketch of External & Internal screw thread and list its main elements of measurement.

3

OR

(A)

Draw a neat sketch of Gear tooth terminology and list its main elements of measurement.

(B)

Describe the working principle of “Tombilson surface meter” with figure.

4

OR

(B)

Name the methods to measure gear tooth thickness and Explain with neat sketch “Gear tooth Vernier caliper”.

Q-3 (A)

Define roundness. List the measuring methods of it and explain any one with figure.

4

(B)

Draw a neat sketch of Parkinson’s gear tester. Explain working principle of Parkinson’s gear tester.

4

OR

(A)

Explain the best wire size for thread measurements. State its mathematical relation.

(B)

Explain Plug gauge & Snap gauge with the help of diagram.

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Seat No.: ________ Enrolment No.______________

GUJARAT TECHNOLOGICAL UNIVERSITY DIPLOMA ENGINEERING – SEMESTER – IV EXAMINATION –WINTER - 2018

Subject Code: 3341905 Date: 30-11-2018

Subject Name: METROLOGY & INSTRUMENTATION

Time: 02:30 PM TO 05:00 PM Total Marks: 70 Instructions:

1. Attempt all questions.

2. Make Suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

4. Use of programmable & Communication aids are strictly prohibited.

5. Use of only simple calculator is permitted in Mathematics.

6. English version is authentic.

Q.1 Answer any seven out of ten. દશમ ાંથી કોઇપણ સ તન જવ બ આપો. 14

1. Classify linear measuring instrument.

૧. લીનીઅર મેજરીંગ ન સ ધનો નુ વગીકરણ કરો.

2. Give the name of four limit gauges.

૨. ચ ર લીમીટ ગેજ ન ન મ આપો.

3. Give the full the form of (1) C.L.A (2) R.M.S

૩. પુરુ ન મ આપો. (૧) સી.એલ.એ. (૨) આર.એમ.એસ.

4. Define Straightness

૪. સ્ટ્રેટનેસ ની વ્ય ખ્ય આપો.

5. Find the list count of Vernier Caliper.

૫. વનીઅર કેલીપર ની લઘુત્તમ મ પ શક્તત શોધો.

6. Define (1) Accuracy (2) Precision

૬. વ્ય ખ્ય આપો. (૧) એતયુરેસી (૨) પ્રીસીઝન

7. Name the four Pressure Measuring Devices.

૭. ચ ર દબ ણ મ પવ ન સ ધનો ન ન મ આપો.

8. Explain the wringing method for slip gauges.

૮. ક્સ્ટ્લપ ગેજ મ ટેની રીંગીંગ મેથડ સમજાઓ.

9. Define (1) Crest (2) Effective diameter.

૯. વ્ય ખ્ય આપો. (૧) ક્રેસ્ટ્ટ (૨) ઇફેક્તટવ ડ ય મીટર

10. Write the use of “ Talysurf Tester ‘

૧૦. ટેલીસફફ ટેસ્ટ્ટર નો ઉપયોગ લખો.

Q.2 (a) Differentiate: Metrology and inspection. 03

પ્રશ્ન. ર (અ) મેરોલોઝી અને ઇંસ્ટ્પેતશન વચ્ચનેો તફ વત લખો. ૦૩

OR

(a) State the functions of inspection and explain any one. 03

(અ) ઇંસ્ટ્પેતશનન ક યો લખો અને ગમે તે એક સમજાઓ. ૦૩

(b) Explain working principle of micrometer and show 27.32 mm on it. 03

(બ) મ ઇક્રોમીટર નો ક યફ ક્સધધ ાંત વણફવો અને ૨૭.૩૨ mm તેન ઉપર દશ ફવો. ૦૩

OR

(b) Explain the working principle of sine bar with neat sketch. 03

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(બ) સ ઇન બ રનો ક યફ ક્સધધ ાંત સ્ટ્વચ્છ આક્રુક્ત દોરી સમજાઓ. ૦૩

(c) Indicate (1) 34º 30’ (2) 25º 45’ on Bevel protector. 04

(ક) બેવેલ પ્રોટેતટર ઉપર દશ ફઓ. (૧) ૩૪ º ૩૦’ (૨) ૨૫ º ૪૫’ ૦૪

OR

(c) Write a short note on Telescopic gauge. 04

(ક) ટેલીસ્ટ્કોક્પક ગેજ ક્વશે ટ ાંકનોંધ લખો. ૦૪

(d) Explain V-block and dial indicator method of testing roundness. 04

(ડ) વી- બ્લોક અને ડ યલ ઇંડીકેટર ની મદદ થી ર ઉંડ્નેસ મ પવ ની રીત લખો. ૦૪

OR

(d) List the methods of testing flatness and explain any one of them. 04

(ડ) ફ્લેટ્નેસ ચેક કરવ ની રીત દશ ફવો અને ગમે તે એકનુ વણફન કરો. ૦૪

Q.3 (a) Differentiate between - Roughness and waviness. 03

પ્રશ્ન. 3 (અ) તફ વત આપો.- રફનેસ અને વેવીનેસ. ૦૩

OR

(a) Explain working principle of Tomlinson surface meter with neat sketch. 03

(અ) ટોમ્લાંસન સરફેસ મીટરનો ક યફ ક્સધધ ાંત સ્ટ્વચ્છ આક્રુક્ત દોરી સમજાઓ. ૦૩

(b) Write down the objectives of non-destructive testing. 03

(બ) અક્વન શક પરરક્ષણ ન હેતુઓ લખો. ૦૩

OR

(b) With neat sketch explain Dye penetration test. 03

(બ) ડ ઇ પેનીરેશન ટેસ્ટ્ટ સ્ટ્વચ્છ આક્રુક્ત દોરી સમજાઓ. ૦૩

(c) Explain the working principle of radiation pyrometer with neat sketch. 04

(ક) રેડીએશન પ યરોમીટરનો ક યફ ક્સધધ ાંત સ્ટ્વચ્છ આક્રુક્ત દોરી સમજાઓ. ૦૪

OR

(c) Write a short note on Rotameter. 04

(ક) રોટ મીટર ક્વશે ટ ાંકનોંધ લખો. ૦૪

(d) Explain plug gauge with the help of diagram. 04

(ડ) પ્લગગેજ આક્રુક્તની મદદ થી સમજાઓ. ૦૪

OR

(d) Explain Piezo-electric type transducer with neat sketch. 04

(ડ) ક્પઝો ઇલેતરીક ર ાંસડુસર સ્ટ્વચ્છ આક્રુક્ત દોરી સમજાઓ. ૦૪

Q.4 (a) Explain Parkinson’s gear tester with neat sketch. 03

પ્રશ્ન. ૪ (અ) પ કીંસન ગીઅર ટેસ્ટ્ટર સ્ટ્વચ્છ આક્રુક્ત દોરી સમજાઓ. ૦૩

OR

(a) List the methods for circular pitch measurement and explain any one. 03

(અ) સતયુફલર પીચ મ પવ ની રીતો દશ ફઓ અને ગમે તે એકનુ વણફન કરો. ૦૩

(b) Write a short note on Gear tooth vernier caliper. 04

(બ) ગીઅર ટુથ વનીઅર કેલીપર ક્વશે ટ ાંકનોંધ લખો. ૦૪

OR

(b) Explain two wire method for measurement effective diameter of thread. 04

(બ) થ્રેડ નો ઇફેતટીવ ડ ય મીટર મ પવ મ ટે ની ટુ-વ યર ની રીત વણફવો. ૦૪

(c) Define the following (1) Addendum (2) Dedendum (3) Circular pitch

(4)Tooth thickness (5) Diametral pitch (6) Module (7) Pitch circle diameter 07

(ક) વ્ય ખ્ય આપો. (૧) એડેંડમ (૨) ડીડેંડમ (૩) સતયુફલર પીચ (૪) દ ાંત ની ઝ ડ ઇ (૫) ડ ય મેરલ ૦૭

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પીચ (૬) મોડ્યુલ (૭) પીચ સકફલ ડ ય મીટર.

Q.5 (a) Write a short note on Vernier height gauge. 04

પ્રશ્ન. ૫ (અ) વનીઅર હ ઇટ ગેજ ક્વશે ટ ાંકનોંધ લખો. ૦૪

(b) Write a short note on Bourdon tube pressure gauge. 04

(બ) બડફન ટ્યુબ પે્રસર ગેજ ક્વશે ટ ાંકનોંધ લખો. ૦૪

(c) Name different limit gauges and state their applications. 03

(ક) ક્વક્વધ ક્લક્મટ ગેજ ન ન મ અને ઉપયોગ લખો. ૦૩

(d) Explain wedge method of testing straightness. 03

(ડ) સ્ટ્રેટ્નેસ મ પવ મ ટે ની વેજ મેથડ વણફવો. ૦૩

************

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GUJARAT TECHNOLOGICAL UNIVERSITY DIPLOMA ENGINEERING – SEMESTER – 4(NEW) • EXAMINATION – SUMMER 2018

Subject Code: 3341905 Date: 07-May-2018

Subject Name: Metrology & Instrumentation

Time: 10:30 AM TO 01:00 PM Total Marks: 70 Instructions:








1. Define inspection and metrology.

૧. ઇંસ્પેક્શન અને મેટ્રોલોજી ની વ્ય ખ્ય આપો.

2. Write the uses of surface plate.

૨. સરફેશ પ્લેટ ન ઉપયોગો લખો.

3. Define the term Flatness.

૩. ફ્લેટ્નેસ પદ ની વ્ય ખ્ય આપો.

4. Give the full form of “CLA” AND “RMS”.

૪. “CLA” અને “RMS” ન ુઆખ ુન મ લખો.

5. List out the flow measuring devices.

૫. ફ્લો મેજરમેંટ ન સ ધનો ન ુવગીકરણ કરો.

6. Define (1) Module (2) Pitch circle diameter.

૬. વ્ય ખ્ય આપો. (1) મોડયલુ (2) પીચ સકકલ ડ ય મીટર.

7. State the elements of external thread.

૭. એક્સટનકલ થ્રેડ ન ઘટકો લખો.

8. Write any four advantages of limit gauges.

૮. લીમીટ ગેજ ન ગમે તે ચ ર ફ યદ લખો.

9. Give the equation for finding out the Least count of Venire caliper.

૯. વેર્નિઅર કેલલપર ની લઘતુ્તમ મ પ શક્ક્ત શોધવ ન ુસતુ્ર દશ કવો.

10. Name any four NDT methods.

૧૦. ગમે તે ચ ર NDT મેથડ ન ન મ આપો.

Q.2 (a) Explain the wringing method used for joining slip gauges. 03

પ્રશ્ન. ર (અ) સ્લીપ ગેજ જોડવ મ ટે ની રીંગીંગ મેથડ સમજાવો. ૦૩

OR

(a) Differentiate between accuracy and precision. 03

(અ) એક્યરેુર્સ અને ર્િર્સસન વચ્ચે નો તફ વત સમજાવો. ૦૩

(b) Draw the labeled diagram of Vernier Caliper. 03

(બ) વર્નિઅર કેલલપર ની ન મ ર્નદેશન વ ળી આક્રુર્ત દોરો. ૦૩

OR

(b) Show (1) 15.34 mm (2) 36.58 mm on outside micrometer. 03

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(બ) આઉટ સ ઇડ મ ઇક્રો મીટર ઉપર દશ કવો. (1) 15.34 મી.મી. (2) 36.58 મી.મી ૦૩

(c) Explain Telescopic gauge with neat sketch. 04

(ક) ટેલલસ્કોર્પક ગેજ આક્રુર્ત દોરી સમજાવો. ૦૪

OR

(c) Write a short note on Inside Micrometer. 04

(ક) ઇંનસ ઇડ મ ઇક્રો મીટર ર્વશે ટુાંકનોધ લખો. ૦૪

(d) Explain the working principle of sine bar with neat sketch. 04

(ડ) સ ઇન બ ર નો ક યક ર્સિંધધ ાંત આક્રુર્ત દોરી સમજાવો. ૦૪

OR

(d) Write a short note on Mechanical bevel protector. 04

(ડ) ર્મકેનીકલ બેવેલ િોટેક્ટર ર્વશે ટુાંકનોધ લખો. ૦૪

Q.3 (a) Explain Ultrasonic test with neat sketch. 03

પ્રશ્ન. 3 (અ) અલ્ટ્ટ્ર ર્સર્નક ટેસ્ટ આક્રુર્ત દોરી સમજાવો. ૦૩

OR

(a) Write down the difference between Destructive test and Non-destructive test. 03

(અ) ડીસ્ટ્રક્ટીવ ટેસ્ટ અને નોન- ડીસ્ટ્રક્ટીવ ટેસ્ટ વચ્ચે નો તફ વત સમજાવો. ૦૩

(b) Explain working principle of Rota meter with neat sketch. 03

(બ) રોટ મીટર નો ક યક ર્સિંધધ ાંત આક્રુર્ત દોરી સમજાવો. ૦૩

OR

(b) Write a short note on Radiation pyrometer. 03

(બ) રેડીયેશન પ યરોમીટર ર્વશે ટુાંકનોધ લખો. ૦૩

(c) Explain V-block and dial indicator method for roundness testing. 04

(ક) ર ઉંડ્નેસ ટેસ્ટીંગ મ ટે ની વી બ્લોક અને ડ યલ ઇંડીકેટર ની રીત સમજાવો. ૦૪ OR

(c) Explain wedge method for measuring straightness. 04

(ક) સટે્રટ્નેસ મેજર મ ટે ની વેજ મેથડ સમજાવો. ૦૪

(d) Give the difference between Roughness and Waviness. 04

(ડ) રફ્નેસ અને વેર્વનેસ વચ્ચેનો તફ વત આપો. ૦૪

OR

(d) Write a short note on Tomlinson surface roughness meter. 04

(ડ) ટોમલલિંસન સરફેસ રફ્નેસ મીટર ર્વશે ટુાંકનોધ લખો. ૦૪

Q.4 (a) Explain two wire method for measurement of effective diameter of thread. 03

પ્રશ્ન. ૪ (અ) થ્રેડ નો ઇફેક્ટીવ ડ ય મીટર શોધવ મ ટે ની ટુ વ યર ની રીત સમજાવો. ૦૩

OR

(a) Define (1) Crest (2) Effective diameter (3) Pitch 03

(અ) વ્ય ખ્ય આપો. (1) કે્રસ્ટ (2) ઇફેક્ટીવ ડ ય મીટર (3) પીચ. ૦૩

(b) Explain Plug gauge with neat sketch. 04

(બ) પ્લગ ગેજ આક્રુર્ત દોરી સમજાવો. ૦૪

OR

(b) Explain the term comparator. Classify the Comparators.

04

(બ) કમ્પેરેટર પદ સમજાવો અને તેન ુવગીકરણ કરો. ૦૪

(c) Write a short note on Gear tooth vernier caliper. 07

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(ક) ગીઅર ટુથ વર્નિઅર કેલલપર ર્વશે ટુાંકનોધ લખો. ૦૭

Q.5 (a) Explain the working of Pizo electric transducer. 04

પ્રશ્ન. ૫ (અ) ર્પજો ઇલેક્ટ્રીક ટ્ર ાંસ્ડયસુર ન ુક યક સમજાવો. ૦૪

(b) Write s short note on Burdon tube pressure gauge. 04

(બ) બડકન ટયબુ િેસર ગેજ ર્વશે ટુાંકનોધ લખો. ૦૪

(c) Give the advantages , dis-advantages and applications of Centralized

inspection. 03

(ક) સેંટ્રલ ઇઝ ઇંસ્પેક્શન ન ફ યદ , ગેર ફ યદ અને ઉપયોગો લખો. ૦૩

(d) Differentiate between Measurement and Gauging. 03

(ડ) મેજરમેન્ટ અને ગેજીંગ વચ્ચે નો તફ વત લખો. ૦૩

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GUJARAT TECHNOLOGICAL UNIVERSITY DIPLOMA ENGINEERING – SEMESTER –IV• EXAMINATION – SUMMER - 2017

Subject Code: 3341905 Date: 05-05-2017

Subject Name: Metrology And Instrumentation

Time: 10:30 AM TO 01:00 PM Total Marks: 70 Instructions:








1. Name only the Parts of Micrometer.

૧. માઈક્રોમીટર ના ફક્ત ભાગના નામ આપો.

2. Sketch reading of 13.78 mm on Vernier Caliper.

૨. આકૃતતની મદદથી ૧૩.૭૮ મીમીન ાં મ પ વતનર્યર કેલિપર ઉપર દશ યવો.

3. Find Least count of Mechanical Bevel Protector.

૩. તમકેનીકિ બેવિ પ્રોટેકટર ન ાં િધ તમ મ પ શોધો.

4. Define. Straightness.

૪. સ્ટ્રીઈટનેસ ની વ્ર્ ખ્ર્ આપો.

5. State the full form of (1) CLA (2) RMS.

૫. નીચેન ન પ ણય ન મ જણ વો. (૧) સી એિ એ (૨) આર એમ એસ.

6. State the elements of Internal Thread.

૬. ઈનટનયિ થ્રેડન એલિમેટસન ન મ અપો.

7. Give only two names of the methods to measure Gear Tooth Thickness.

૭. લિર્ર ટ થ તથકનેસ મ પવ મ ટેની ફકત બે પધ્ધતીન ન મ જણ વો.

8. Draw only Neat Sketch of L. V. D. T.

૮. L V D T ની ફકત સ્ટ્વચ્છ આકૃતત દોરો.

9. Name four Flow Measuring Devices.

૯. ચ ર ફિો મ પન સ ધનન ન મ આપો.

10. Name the different devices to measure Pressure.

૧૦. પે્રસર મ પવ ન જ દ જ દ સ ધનોન ન મ આપો.

Q.2 (a) Define: (1) Accuracy (2) Precision (3) Error. 03

પ્રશ્ન. ર (અ) વ્ર્ ખ્ર્ આપો. (૧) એકય રસી (૨) તપ્રસીઝન (૩) એરર ૦૩

OR

(a) Define Inspection. Explain function of Inspection. 03

(અ) ઈન્સસ્ટ્પેકશનની વ્ર્ ખ્ર્ આપો તથ તેન કર્ો જણ વો. ૦૩

(b) Draw neat sketch of Telescopic Gauge. 03

(બ) ટેિીસ્ટ્કોપીક િેજની સ્ટ્વચ્છ આકૃતત દોરો. ૦૩

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OR

(b) Write the use of Surface Plate. 03

(બ) સરફેશ પ્િેટન ઉપર્ોિો િ.ો. ૦૩

(c) List Flatness Testing method and explain any one of it. 04

(ક) ફિટેનસે મ પવ ની પધ્ધતતની ર્ દી બન વો અને કોઈ પણ એક સમજાવો. ૦૪

OR

(c) Explain Sine bar with neat sketch. 04

(ક) સ્ટ્વચ્છ આકૃતતની મદદથી સ ઈન બ ર સમજાવો. ૦૪

(d) Write short note on Dial Indicator. 04

(ડ) ડ ર્િ ઈન્સડીકેટર પર ટ ાંક નોંધ િ.ો. ૦૪

OR

(d) Draw the labeled diagram of Micrometer. 04

(ડ) મ ઈક્રોતમટરની ન મ તનદયશનવ ળી આકૃતત દોરો. ૦૪

Q.3 (a) Name the NDT methods. 03

પ્રશ્ન. 3 (અ) એન. ડી. ટી. મેથડસ ન ન મ જણ વો. ૦૩

OR

(a) State the advantages of Non- Destructive Testing. 03

(અ) નોન ડડસ્ટ્ટરકડટવ ટેસ્ટ્ટીંિન ફ ર્દ ઓ જણ વો. ૦૩

(b) State limitations of stylus and skid Instrument. 03

(બ) સ્ટ્ટ ર્િસ અને સ્ટ્કીડ ઈન્સસ્ટ્ટ મેન્સટસની મર્ યદ જણ વો. ૦૩

OR

(b) Classify Limit Gauges. 03

(બ) લિમીટ િેજન ાં વિીકરણ કરો. ૦૩

(c) Differentiate: Measurement and Gauging. 04

(ક) તફ વત આપો. મેઝરમેન્સટ અને િેજીંિ. ૦૪

OR

(c) Explain working principle of Profilograph. 04

(ક) પ્રોફ ઈિોગ્ર ફનો ક ર્ય તસધ્ધ ાંત જણ વો. ૦૪

(d) Sketch a Plug Gauge and Explain “GO” and “NOT GO” members of limit

Gauges.

04

(ડ) પ્િિ િેજની સ્ટ્વચ્છ આકૃતત દોરો અને લિમીટ િેજન “િો” અને “નોટ િો” ભ િ તવષે સમજાવો.

૦૪

OR

(d) Describe any one method of Non Destructive Testing in Details. 04

(ડ) કોઈપણ એક નોન ડડસ્ટ્રકટીવ ટેસસ્ટ્ટિંિ મેથડ તવસ્ટ્તતૃમ ાં સમજાવો. ૦૪

Q.4 (a) Define related to Gear.

(1) Module (2) Pitch Circle (3) Addendum.

03

પ્રશ્ન. ૪ (અ) િીર્ર ન સ પેક્ષમ ાં વ્ર્ ખ્ર્ આપો. (૧) મોડય િ (૨) પીચ સકયિ (૩) એડેન્સડમ.

૦૩

OR

(a) Define related to Screw Threads.

(1) Pitch (2) Depth of Threads (3) Pitch diameter.

03

(અ) સ્ર્ક થે્રડન સ પેક્ષમ ાં વ્ર્ ખ્ર્ આપો. ૦૩

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(૧) પીચ (૨) ડેપ્થ ઓફ થે્રડ (૩) પીચ ડ ર્ મીટર. (b) Explain two wire methods for measurement of effective diameter of thread. 04

(બ) થે્રડનો ઈફેકટીવ ડ ર્ મીટર મ પવ મ ટેની બે વ ર્ર મેથડ વણયવો. ૦૪

OR

(b) Explain Parkinson’s Gear Tester with neat sketch. 04

(બ) સ્ટ્વચ્છ આકૃતતની મદદથી પ ડકિન્સસન્સસ િીર્ર ટેસ્ટ્ટર વણયવો. ૦૪

(c) Explain the working principle of Optical Pyrometer with neat sketch. 07

(ક) સ્ટ્વચ્છ આકૃતતની મદદથી ઓપ્ટીકિ પ ર્રોમીટરનો ક ર્ય તસધ્ધ ાંત વણયવો. ૦૭

Q.5 (a) Write short note on Bourdon Tube pressure gauge. 04

પ્રશ્ન. ૫ (અ) બર્ડ્યન ટય બ પે્રશર િેજ તવષે ટ ાંક નોંધ િ.ો. ૦૪

(b) Write short note on Rotating Lobes meter. 04

(બ) રોટેટીંિ િોબમીટર તવષે ટ ાંક નોંધ િ.ો. ૦૪

(c) Name the various types of Transducers. 03

(ક) તવતવધ પ્રક રન ર ન્સસ્ટ્ડ સરન ન મ આપો. ૦૩

(d) Differentiate: Resistance thermometer and thermocouple. 03

(ડ) તફ વત આપો. રેલઝસ્ટ્ટન્સસ થમોતમટર અને થમોકપિ. ૦૩

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