- vitamenggcollege.com · pdf filecarrying an udl of 5kn/m, ... a cantilever beam of length l...

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Code No: RT22016

II B. Tech II Semester Regular Examinations, April/May – 2016

STRUCTURAL ANALYSIS-I (Civil Engineering)

Time: 3 hours Max. Marks: 70

Note: 1. Question Paper consists of two parts (Part-A and Part-B)

2. Answer ALL the question in Part-A

3. Answer any THREE Questions from Part-B

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A 1. a) Draw the BMD for propped cantilever with prop at free end carrying a point load

at centre.

(4M)

b) Draw the S.F.D for a fixed beam carrying eccentric load. (4M)

c) Write the equations of the Claypeyron’s theorem with sinking of supports (3M)

d) A 2M long cantilever beam carries a point load of 6000N at the free end. The

beam is 15cm wide and 20 cm deep. If E=2.1x106N/cm

2, find slope of the

cantilever

(4M)

e) A simply supported beam of length L carries a point load W at the centre. Find the

deflection using energy theorem.

(4M)

f) Draw I.L.D for the Bending Moment at a section X for a simply supported beam

AB

(3M)

PART –B 2. a) A timber beam 12cm wide,20cm deep and 4M long is loaded with a uniformly

distributed load .It is fixed at the left end and simply supported at the right end.If

the maximum allowable fibre stress is 10N/mm2 and right support settles by an

amount equal to wl4/24 EI,where w is load per meter run.determine the permissible

value of load w.

(12M)

b) Differentiate between cantilever and propped cantilever. (4M)

3. Derive the equation for a fixed beam with ends at different levels.

(16M)

4. A continuous beam ABCD is simply supported over three spans. Span AB is 9m

carrying an udl of 5kN/m, span BC is 14M carrying an udl of 5kN/m and span CD

is 6M carrying an udl of 8kN/m. Find the moment over supports B and C.Draw

B.M.D.

(16M)

5. A Continuous beam is fixed at A and is supported over rollers at B and C.

AB=BC=12M.The beam carries a uniformly distributed load of 30kN/m over AB

and a point load of 240kN at a distance of 4M from B on span BC.B has an

settlement of 30mm.E= 2 x105

N/mm2,I= 2 x 10

9 mm

4.Analyse the beam by slope

deflection method.

(16M)

6. a) Derive the strain energy equation due to axial loading. (6M)

b) Analyze a continuous beam simply supported at A,B and C .The span AB is 6M

and BC is 8M. The span AB is carrying an udl of 30kN/m and span BC carries a

load of 40kN at a distance of 3M from B. Use Strain energy method. Draw the

B.M.D.

(10M)

7. Two point loads of 6000N and 3000N spaced 4M apart cross a girder of 10 m span

from left to right, with smaller loading leading. Draw the SF and BM diagrams.

Find the position and amount of absolute maximum bending moment.

(16M)

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WWW.MANARESULTS.CO.IN

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Code No: RT22016







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A 1. a) Differentiate between cantiver and propped cantilever. (2M)

b) Draw the B.MD for a fixed beam carrying an eccentric load. (4M)

c) Write the equations of the Clapeyron’s theorem for different moments of inertia. (3M)

d) A point load of 12kN is placed at a distance of 5.5M from a 7m long cantilever

beam. If E=2.1x106N/cm

2 and I=50000cm

4, determine the slope at the free end. (5M)

e) A cantilever beam of length L carries a point load W at the free end. Find the

deflection at free end using energy theorem (4M)

f) Draw I.L.D for the reaction at A for a simply supported beam AB. (4M)

PART -B 2. a) A cantilever AB of length 2M is fixed at end A and B rests at the centre of

simply supported beam of span 4M.Find the support moment at A and deflection

at B when the cantilever is loaded with uniformly distributed load of 20,000N/m

EI for cantilever is 1 x 107 Nm

2 and EI for simply supported beam is 2 x10

7Nm

2 (12M)

b) Write about moment area method

(4M)

3. A fixed beam of length 12M carries two point loads at a distance of 4M and 8M

from left end respectively. Find the fixed end moments under the loads when the

beam is simply supported. Draw the B.M.D.

(16M)

4. A continuous beam ABC of length 10M is simply supported ,AB and BC is of

length 5M each. Span AB carries an udl of 4kN/m and BC carries an udl of

5kN/m.Support B sinks down by 5Mm below the supports of A and B.The

moment of inertia of the beam is 108 mm

4 and E is 180kN/mm

2.Find the support

moments and draw the B.M.D.

(16M)




settlement of 25m.E= 2 x105

N/mm2,I= 2 x 10

9 mm


deflection method.

(16M)

6. a) Derive the strain energy equation due to bending moment. (6M)

b) Analyze a continuous beam simply supported at A,B and C .The span AB and BC

is 6M each. The two spans are carrying an udl of 32kN/m over entire span. Use

Strain energy method Draw the B.M.D.

(10M)

7. A uniform load of 2000N/m,5M long crosses a girder of 20m span from left to

right.Calculate the maximum S.F and B.M at a section 8M from left support.

(16M)

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R13 SET - 2


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Code No: RT22016







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Draw the B.M.D for a propped cantilver carrying U.D.L throughout. (4M)

b) Prove that for fixed beam area of BM diagram due to vertical loads is equal to the

area of B,M diagram due to end loads.

(4M)

c) What do you mean by continuous beams? Show the different types of continuous

beams with the help of sketches

(4M)

d) A 3M long cantilever beam carries a point load of 9000N at the free end. The

beam is 20cm wide and 40 cm deep. If E=2.1x106N/cm

2, find deflection of the

cantilever

(4M)

e) State Castigliano’s first theorem. (3M)

f) Draw I.L.D for the Shear force at a section X for a simply supported beam AB. (3M)

PART -B

2. a) A timber beam 14cm wide,24cm deep and 6M long is loaded with a uniformly

distributed load .It is fixed at the left end and simply supported at the right end.If

the maximum allowable fibre stress is 12N/mm2 and right support settles by an

amount equal to wl4/24 EI,where w is load per meter run. Determine the

permissible value of load w.

(12M)

b) Draw the BMD for a propped cantilever with an over hang at L/4 from free end

carrying a point load at free end

(4M)

3. A fixed beam of length 15M carries two point loads at a distance of 5M and 10M

from left end respectively. Find the fixed end moments under the loads when the

beam is simply supported. Draw the B.M.D.

(16M)

4. Derive the Clayperon’s theorem of three moments.

(16M)





N/mm2,I= 2 x 10

9 mm


deflection method.

6. a) Derive the strain energy equation due to shear force (8M)


is 8M each. The span AB is carrying a load of udl of 24kN/m and BC is carrying

load of 40kN at the mid point of BC.Use Strain energy method .Draw the B.M.D.

(8M)

7. Two point loads of 5000N and 2000N spaced 3M apart cross a girder of 9 m span

from left to right, with smaller loading leading. Draw the SF and BM diagrams.

Find the position and amount of absolute maximum bending moment.

(16M)

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R13 SET - 3


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Code No: RT22016







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Differentiate between cantiver and propped cantilever. (4M)

b) Draw the B.MD for a fixed beam carrying U.D.L throughout the span. (4M)

c) State Clapeyron’s three moment theorem (4M)

d) A point load of 10kN is placed at a distance of 5M from a 7m long cantilever

beam. If E=2.1x106N/cm

2 and I=50000cm

4, determine the deflection at the free

end.

(4M)

e) A simply supported beam of length L carries an eccentric load W . Find the

deflection using energy theorem

(3M)

f) Draw I.L.D for the reaction at B for a simply supported beam AB. (3M)

PART -B

2. a) Find the support moment for the propped cantilever carrying uniformly varying

load w/unit length from A to B. Draw B.M.D

(12M)

b) What are the steps involved in the analysis of propped cantilever.

(4M)

3. Derive the equation with the effect of rotation on one end of a fixed beam.

(16M)

4 A continuous beam ABCD is simply supported over three spans. Span AB is 8M

carrying an udl of 4kN/m, span BC is 12M carrying an udl of 3kN/m and span

CD is 5M carrying an udl of 6kN/m. Find the moment over supports B and

C.Draw B.M.D.

(16M)





N/mm2,I= 2 x 10

9 mm


deflection method.

(16M)

6. a) Derive the strain energy equation due to axial loading. (4M)


is 8M each. The two spans are carrying a load of udl of 30kN/m over entire span.

Use Strain energy method Draw the B.M.D.

(12M)

7. Draw the influence line diagrams for forces in the members of a Warren Truss (16M)

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Code No: RT22013

II B. Tech II Semester Regular Examinations, April/May - 2016

STRENGTH OF MATERIALS - II (Civil Engineering)





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A 1. a) Write about Principal stress theory

b) Explain the Theory of pure torsion?

c) What the different types of columns?

d) Write the stresses in dams?

e) What is moment of inertia?

f) Write a note on method of joint?

PART -B 2. a) Write a note on Mohr's circle of stresses. What is the importance of this circle?

b) A rectangular block of 1200 mm2 cross-sectional area is subjected to a

longitudinal compressive load of 1200kN. Determine the normal stress across the

cross section of the block. If the block is cut by an oblique plane making an angle

of 400 with normal section of the block. Determine:

(i) Normal stress on the oblique plane

(ii) Tangential stress along the oblique plane, and

(iii) Resultant stress on the oblique plane.

3. The external diameters of a steel collar are 200mm, and the internal diameter

decreases by 0.125mm when shrunk on to a solid steel shaft of 125mm diameter.

Find the reduction in diameter of the shaft, the radial pressure between the collar

and the shaft and hoop stress at the inner surface of the tube. Take E = 210GN/m2

and 1/m=0.3.

4. Starting from secant formula, derive Perry’s formula for long columns

5. a) Explain briefly how stresses in beams due to un symmetric bending is considered.

b) Explain briefly the method of locating shear centre.

6. Determine of stresses in the case of chimneys, retaining walls

7. Determine the forces in all the members of the frame by method of joints

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R13 SET - 1


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Code No: RT22013


STRENGTH OF MATERIALS - II

(Civil Engineering)





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) What are the different Theories of Failures?

b) Write about close and open coiled helical springs

c) What is the difference between short and long column?

d) Write the stresses in retaining walls?

e) What is the difference between symmetrical and unsymmetrical bending?

f) Explain the concept of indeterminate trusses

PART -B 2. a) Explain the terms principal stresses and principal planes.

b) Derive expressions for principal stresses, principal planes and max shear stress if there

are like direct stresses accompanied by a state of simple shear.

3. a) Define helical spring? Name the two important types of helical springs.

b) A hollow shaft of diameter ratio 3/5 is required to transmit 400KW at 140 r.p.m with a

uniform twisting moment. The shear stress in the shaft must not exceed 60 MPa and

the twist in a length 2.5 m must not exceed 10. Calculate the minimum external

diameter of the shaft. Take C=8X104 MPa.

4. a) Derive the Rankine's formula for crippling load.

b) A column of circular section has 160mm diameter and 4m length. Both ends of the

column are fixed. The column carries a load of 150kN at an eccentricity of 15mm

from the geometrical axis of the column. Find the maximum compressive stress on the

column section.

5. Distinguish between direct stress and bending stress by means of a diagram.

6. a) What do you mean by unsymmetrical bending?

b) Locate the shear centre of the section shown in Figure 1. Thickness is 6mm

throughout.

7. Calculate the magnitude and nature of the forces in the member of the truss as shown

is Figure 2, by method of joints.

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R13 SET - 2 R13 SET - 2


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Code No: RT22013


STRENGTH OF MATERIALS - II (Civil Engineering)





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Explain about Mohr’s circle?

b) Write the different Types of springs?

c) What is slenderness ratio

d) Write about bending stresses?

e) Explain briefly about unsymmetrical bending?

f) Explain the concept of determinate trusses

PART -B 2. a) Derive an expression for the normal stress and shear stress on an oblique section of a

rectangular body when it is subjected to direct stress in one plane only.

b) A rectangular element is a strained body is subjected to tensile stresses of 250 N/mm2

and 180 N/mm2 on mutually perpendicular planes together with a shear stress of

80N/mm2. Determine:

i) Principal stresses ii) Principal planes

iii) Maximum shear stress and iv) Plane of maximum shear stress

3. A closely coiled helical spring is made out of 10mm dia. steel rod, the coil having 12

complete turns. The mean dia. of spring is 10mm. Calculate the shear stress induced in

the section of the rod due to an axial load of 250N. Find also the deflection under the

load, energy stored in the spring and the stiffness of spring. Take N = 8 x104 N/mm

2.

4. a) Deduce a formula for the critical load of a column having both ends hinged.

b) A solid circular bar 6m long and 5 cm in diameter was found to extend 4.5 mm under

a tensile load of 50KN. The bar is used as a strut with both ends hinged. Determine the

buckling load for the bar and the safe load, consider factor of safety as 3.0.

5. Determine of stresses in the case of dams and explain the conditions for stability?

6. A beam of rectangular section 100mm wide and 180mm deep is subjected to a bending

moment of 12kN.m The trace of the plane of loading is inclined at 450 to the y-y axis

of the section. Locate the natural axis of the section and calculate the maximum

bending stress induced is the section.

7. Find the forces in the members of truss by method of joints as shown in Figure 1.

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R13 SET - 3 R13 SET - 3


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Code No: RT22013


STRENGTH OF MATERIALS - II

(Civil Engineering)





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Explain about Normal and tangential stresses on an inclined plane

b) Write about Polar section modulus with one example?

c) Write the Limitations of Euler’s theory

d) Write the stresses in chimneys

e) Explain about centroid in rectangular section

f) Write a short nore on method of section?

PART -B 2. a) Briefly illustrate the shear strain energy theory.

b) Using the above theory estimate the factor of safety for a certain type of steel whose

Proportional limit is 280 MPa. The principal stresses were found to be 100 MPa

(tensile),60 MPa (tensile) and 30 MPa (compressive)

3. Design a close coiled helical spring made of by steel wire. The diameter of the coil is

10 times the diameter of the wire. A load 650N is applied on the spring which causes a

deflection of 60mm. Take allowable maximum shear stress is 80N/mm2 and C=8X10

4

N/mm2.

4. a) Define slenderness ratio of a column. What is its importance?

b) A column of circular section has 160mm diameter and 4m length. Both ends of the

column are fixed. The column carries a load of 150kN at an eccentricity of 15mm

from the geometrical axis of the column. Find the maximum compressive stress on the

column section.

5. A square chimney 25m high, having an opening of ln by ln is subjected to a horizontal

wind pressure of 1.5 KN/m2. Find the necessary thickness of brick work at base if the

density of the masonry is 21 KN/m3 and the max permissible stress on brick masonry

is limited to 0.8N/mm2.

6. a) What do you mean by unsymmetrical bending?

b) A beam of rectangular section 80mm wide and 120mm deep is subjected to a bending

moment of 12kN.m The trace of the plane of loading is inclined at 450 to the y-y axis

of the section. Locate the natural axis of the section and calculate the maximum

bending stress induced is the section

7. Find the forces in the members of truss by method of section as shown in Fig 1.

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R13 SET - 4 R13 SET - 4


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Code No: RT22011


BUILDING PLANNING AND DRAWING (Civil Engineering)



2. Answer any THREE Questions from PART-A

3. Answer any ONE Question from PART-B

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A 1. Explain in detail the following:

(a) Floor area ratio (b) Building byelaws

(14M)

2. Explain in detail the various requirements of different rooms and their grouping

(14M)

3. Explain in detail with neat sketch about planning of bank building.

(14M)

4. With the help of sketches explain the principles concerned with the planning of

(a) Theatre (b) Hospitals

(14M)

5. a) Explain the objectives of building byelaws? (7M)

b) Explain the principles of building byelaws?

(7M)

PART –B

6. Draw neat conventional signs for the following items (in 40mm*40mm blocks).

(a) (i) Glass (ii) Earth (iii) Aluminum (iv) Steel.

(b) Draw the plans of Flemish Bond odd and even courses of one and half brick

walls in thickness at the junction of a corner (300mm thickness).

(28M)

7. The line sketch of the plan of a residential building is shown in below Figure.

Draw (i) A neat dimensioned plan (ii) Sectional elevation along A-A.

Specifications: Foundation: CC 1:3:6, 300 mm wide thick and 1200 mm wide,

depth of foundation is 1000 mm below the ground level.

Basement-coarse Rubble Masonry: 400 mm wide and 700 mm high

Superstructure: Brickwork in CM 1:6, 300 mm wide and 300 mm high ROC

roofing: 100 mm thick. Provide door, windows, ventilators, lintels and sunshades

as per standard dimensions.

(28M)

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R13 SET - 1

All dimensions are in ‘m’


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Code No: RT22011







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. Explain in detail the following

a) Open space requirements (7M)

b) lightning and ventilation requirements

(7M)

2. Explain in detail about the characteristics of various types residential buildings.

(14M)

3. a) Explain the factors considered during the plan of a school building (7M)

b) Explain what you understand by site plan. Show a typical site plan of a building

drawn as per building byelaws

(7M)

4. a) Describe the objectives of building bye laws. (7M)

b) What are the requirements of living room and bed room?

(7M)

5. Explain in detail with neat sketch about planning of dispensaries,. (14M)

PART –B

6. Draw neat conventional signs and symbols for the following:

(a) (i) Glass (ii) Wood across again (iii) Beveled closer (iv) King closer.

(b) Draw the front elevation of a fully paneled wooden window of size

1300mm*1500mm. Also show the sectional plan. Assume other data

(28M)

7. The line sketch of the plan of a residential building is shown in below figure.

Draw (a) A neat dimensional plan. (b) Sectional elevation along AB, to a suitable

scale, using the following specification. Specifications: Foundations: CC 1:4:8;

800mm wide and 800mm thick. Footings: Rubble stone masonry:

600mm*500mm Basement: Coarse rubble masonry: 400mm wide and 700mm

high. Super structure, Brick work in CM 1: 5; 300 mm wide and 300mm high

R.O.C roofing 100mm thick. Provide doors, windows, ventilaters, lintels and

sunshades as per standard dimension.

(28M)

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R13 SET - 2


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Code No: RT22011







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A 1. Explain in detail the following

a) Principles under laying building bye laws (7M)

b) Height of buildings

(7M)

2. a) Explain the minimum standards for various parts of a residential building. (7M)

b) What are the requirements for the following rooms in planning of residential

building? i) Dining room. ii) Bed room.

(7M)

3. a) Briefly explain about the lighting and ventilation requirements for a building. (7M)

b) Write the minimum standards for various parts of a building.

(7M)

4. Explain in detail with neat sketch about planning of hotels and motel.

(14M)

5. Explain in detail with neat sketch about the planning office buildings

(14M)

PART –B 6. Draw neat conventional symbols for the following:

(a) i) Embankment ii) Cutting iii) King closer iv) Queen closer.

(b) Draw to a suitable scale the front elevation of a queen post truss indicating all

details for a clear span of 8000 mm. Assume other data.

(28M)

7. Figure in below shows the line drawing of a residential building, draw to a scale

of the following (a) Plan (b) Sectional elevation along AA first Cement concrete

base 300mm thick and 900mm wide is provided under main walls. Footings are

brick wall in CM 1:6, 600mm wide and 300mm deep depth to which main walls

are taken below the ground level is 1000mm. Superstructure: Main walls 300mm

thick and other walls 200mm thick. Head room 3000mm, Assume suitable

footings below verandah. Roofing: 1:2:4; RCC slab 120mm thick Any other data

not furnished may be suitably assumed.

(28M)

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R13 SET - 3


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Code No: RT22011







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A 1. Write a short notes on the following:

a) setback, detached building, building line, (7M)

b) Classify the building based on occupancy and type of construction.

(7M)

2. Briefly explain the following:

(a) Roominess (b) Circulation (c) Flexibility (d) Grouping

(14M)

3. Classify the buildings based on occupancy and type of construction in detail

(14M)

4. Explain in detail with neat sketch about planning of buildings for recreation

(14M)

5. Explain the following: a)open space requirements b) built up area limitations-

c)height of buildings d)wall thickness

(14M)

PART –B

6. Draw sketches for conventional signs for

(a) (i) Glass (ii) Concrete (iii) Ground level (iv) Stone masonry (v) Plaster (vi)

Cast iron.

(b) Draw a plan of even and odd courses of two brick thick wall in English bond.

(28M)

7. (a) Draw a dimensional sketch of a double coupled roof for 6m span (b) The

central line diagram of a residential building is shown below. Draw the plan of

the building providing doors and windows of the standard sizes. Line diagram is

shown in below.

(28M)

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R13 SET - 4


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Code No: RT22015


CONCRETE TECHNNOLOGY (Civil Engineering)





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) What is alkali aggregate reaction? (4M)

b) What is segregation and bleeding? (4M)

c) What is water cement ratio and Abram’s law? (4M)

d) What is creep of concrete? (3M)

e) What is durability of concrete? (3M)

f) What is FRC? What are the different types of fibres? (4M)

PART –B

2. a) Write about retarders, accelerators and plasticizers. (8M)

b) Write about gap graded and well graded aggregate.

(8M)

3. a) Define workability. What are the different methods for measuring the

workability?

(10M)

b) What are the different steps in the manufacture of concrete?

(6M)

4. a) What are the different tests of hardened concrete? (10M)

b) What are the factors affecting the strength?

(6M)

5. a) What is the relation between creep and time of concrete? (8M)

b) What are the different types of shrinkage?

(8M)

6. Design a concrete mix for characteristic strength of 30MPa at 28 days with a

standard deviation of 4MPa.The specific gravity of FA and CA are 2.60 and 2.70

respectively. A slump of 50mm is necessary. The specific gravity of cement is

3.15.Assuming the necessary data design the mix as per IS code method.

(16M)

7. Write about

(a) Light weight aggregate concrete

(b) Self consolidating concrete

(c) Nofines concrete

(16M)

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R13 SET - 1


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Code No: RT22015







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) What are the different types of tests for finding the physical properties of

cement?

(4M)

b) What is shotcrete concrete? (3M)

c) What is maturity concept? (4M)

d) What is the modulus of elasticity and dynamic elasticity of concrete? (4M)

e) What is the quality control of concrete? (3M)

f) What are the different types of polymer concretes? (4M)

PART –B

2. a) Write about bulking of aggregate and soundness of aggregate. (8M)

b) What are the different types of admixture? Write about flyash and silica fume,

(8M)

3. a) Define workability and what are the factors affecting workability? (8M)

b) What are the steps in the manufacture of concrete?

(8M)

4. a) What is the relation between compressive strength and tensile strength of

concrete?

(10M)

b) What are the different NDT tests?

(6M)

5. a) What is creep of concrete and what are the factors affecting creep? (10M)

b) What are the different factors affecting shrinkage of concrete?

(6M)





(16M)

7. Write about

(a) High desnsity concrete

(b) Self healing concrete

(c) Nofines concrete

(16M)

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R13 SET - 2


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Code No: RT22015







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) What is setting time of cement and how is it found practically? (4M)

b) What is curing of concrete? (3M)

c) What is gel space ratio? (3M)

d) What is creep of concrete? What are the factors affecting creep? (4M)

e) What are the acceptance criteria for a mix design? (4M)

f) What is fibre reinforced concrete? (4M)

PART –B

2. a) What is the effect of particle shape and texture on the strength of the aggregate? (8M)

b) What are admixtures? Write about chemical admixtures and mineral

admixtures.

(8M)

3. a) What is segregation and bleeding of concrete? (6M)

b) What are the factors effecting workability?

(10M)

4. a) Write about split tensile strength and flexural strength of concrete? (8M)

b) What are the different NDT tests? What are the codal provisions?

(8M)

5. a) What is the relation between creep and time? (8M)

b) What are the factors affecting creep of concrete?

(8M)


standard deviation of 4MPa.The specific gravity of FA and CA are 2.62 and

2.74 respectively. A slump of 40mm is necessary. The specific gravity of

cement is 3.12.Assuming the necessary data design the mix as per IS code

method.

(16M)

7. Write about

(a) High performance concrete

(b) Self compacting concrete

(c) SIFCON

(16M)

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R13 SET - 3


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Code No: RT22015

II B. Tech I Semester Regular Examinations, April/May – 2016






~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) What are the thermal properties of aggregates? (3M)

b) What is ready mixed concrete? (4M)

c) What is water cement ratio? (4M)

d) Write about Poisson’s ratio of concrete. (3M)

e) What are the different factors in the choice of mix proportions? (4M)

f) What is shotcrete concrete? (4M)

PART -B

2. a) Write about bulk density and moisture absorption of aggregates? (8M)

b) What are different types of cement? What is hydration of cement?

(8M)

3. a) What are the properties of fresh concrete? What are the different tests of

workability?

(12M)

b) Write about water used in concrete?

(4M)

4. What the different tests are of hardened of concrete? Explain in detail.

(16M)

5. Write about elasticity, creep and shrinkage of concrete.

(16M)





(16M)

7. Write about

(a) High Density concrete

(b) Self compacting concrete

(c) Cellular concrete.

(16M)

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Code No: RT22012


HYDRAULICS AND HYDRAULIC MACHINERY (Civil Engineering)





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) When do you call the flows as critical, sub critical and super critical flows?

b) Give the advantages of Dimensional analysis.

c) A jet of water strikes with a velocity of 40 m/s a flat plate inclined at 300 with the

axis of the jet. If the cross sectional area of the jet is 25 cm2 determine the force

exerted by the jet on the plate.

d) What is bondage factor?

e) What are constant head characteristic curves?

f) What does an indicator diagram represent?

PART –B

2. a) Find the discharge through a rectangular channel of width 2m having a bed slope

of 4 in 8000. The depth of flow is 1.5m and takes the value of N in Manning’s

formula as 0.012.

b) Derive dynamic equation for GVF.

3. a) What is a model and when do you call it as a distorted model and undistorted

model.

b) Explain Rayleigh’s method

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Code No: RT22012

4. a) A jet of water 50 mm in diameter and moving with a velocity of 26 m/s is

impinging normally on a plate. Determine the pressure on the plate when it is

fixed and when it is moving with a velocity of 10 m/s in the direction of the jet.

Also determine the work done per second by the jet.

b) Derive the expression for force exerted by a jet when it strikes an inclined flat

plate which is moving in the same direction as the jet.

5. A Kaplan turbine develops 2100kW under a net head of 7.2m with an overall

efficiency of 87%. It is to be fitted with blow type draft tube (draft tube efficiency

88%) having its inlet 1.8m diameter. Determine how much above or below the

tail race level should the draft tube inlet be set so that vacuum pressure there does

not exceed 460 mm of mercury

6. A centrifugal pump discharges 0.15 m3/s of water against a head of 12.5m the

speed of the impeller being 600 r.p.m. The outer and inner diameters of impeller

are 500 mm and 250 mm respectively and the vanes are bent back at 350 to the

tangent at exit. If the area of flow remains 0.07 m2 from inlet to outlet calculate

manometric efficiency of pump, vane angle at inlet and loss of head at inlet to

impeller when the discharge is reduced by 40% without changing the speed.

7. a) Calculate the power developed in MW from a power plant with the following

data. Available head 50m, catchment area 250sq.Km, Average annual rainfall

120cm, rainfall lost due to evaporation 20%, turbine efficiency 82%, generator

efficiency 84% and head lost in penstock 4%.

b) Give the classification of hydropower plants

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Code No: RT22012







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Find the specific energy of flowing water through a rectangular channel of width

5m when the discharge is 10 m3/s and depth of water is 3m.

b) What is Euler’s model law?

c) What is impulse momentum principle?

d) Explain the term “casing” with respect to centrifugal pump.

e) What is Thomas cavitation factor?

f) Give any three disadvantages of hydro electric power plants.

PART –B

2. a) Explain direct step method.

b) The depth of flow of water at a certain section of a rectangular channel of 2m wide

is 0.3m. The discharge through the channel is 1.5 m3/s. Find whether a hydraulic

jump will occur and if so find its height and loss of energy per kg of water.

3. a) Give the uses of dimensional analysis. Also explain different methods with respect

to their application.

b) A 1:10 scale model of a submarine moving far below the surface of water is tested

in a water tunnel. If the speed of the prototype is 8 m/s, determine the

corresponding velocity of water in the tunnel. Also determine the ratio of the drag

for the model and the prototype. �sea water =1.121x 10-6

m2/s, � water =1.00x 10

-6

m2/s, ρsea water =1027 Kg/m

3,ρwater=1000kg/m

3.

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Code No: RT22012

4. a) A jet of water 50 mm in diameter moving with velocity of 15 m/s impinges on a

series of vanes moving with a velocity of 6m/s. Find the force exerted by the jet,

work done by the jet and efficiency of the jet.

b) A stationary vane having an inlet angle of zero degree and an outlet angle of 250

receives water at velocity of 50 m/s. Determine the component of force acting on it

in the direction of the jet velocity and normal to it. Also find the resultant force in

magnitude and direction per kg of flow.

5. A double jet pelton wheel is required to generate 7500 kilowatts when the

available head at the base of the nozzle is 400m. The jet is deflected through 1650

and the relative velocity of the jet is reduced by 15% in passing over the buckets.

Determine the diameter of each jet, total flow, force exerted by the jet on buckets

in tangential direction. Assume generator efficiency of 95%, overall efficiency of

80%, kv=0.97 and ku=0.46.

6. a) A double acting reciprocating pump running at 40r.p.m. is discharging 1.0m3 of

water per minute. The pump has a stroke of 400 mm. The diameter of the piston is

200 mm. The delivery and suction head are 20 m and 5 m respectively. Find the

slip of the pump and power required to drive the pump.

b) Compare and contrast centrifugal and reciprocating pumps.

7. a) Give the classification of hydropower plants.

b) Define and describe load factor and utilization factor.

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Code No: RT22012







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) When does a hydraulic jump occur?

b) Give the dimensions of force, viscosity and power.

c) Find the force exerted by a jet of water of diameter 80 mm on a stationary flat plate

when the jet strikes the plate normally with velocity of 20 m/s.

d) Why does not a draft tube have a constant cross sectional area throughout its length.

e) What is slip and when does a negative slip occur.

f) Give any three advantages of hydro electric power plants.

PART –B

2. a) Explain specific energy curve.

b) A trapezoidal channel with side slopes of 3 horizontal to 2 vertical has to be designed

to convey 10 m3/s at a velocity of 1.5 m/s so that the amount of concrete lining for

the bed and sides is minimum. Find the wetted perimeter and slope of the bed if

Maning’s N=0.014 in the formula C=m1/6

(1/N).

3. When can you apply the results of a model to prototype? Explain in detail.

4. a) A 25mm diameter jet exerts a force of 1kN in the direction of flow against a flat plate

which is held inclined at an angle of 300 with the axis of the stream. Find the rate of

flow.

b) Give the classification of turbines.

5. a) The following data were obtained from a test on a pelton wheel: Head at the base of

the nozzle=32m, discharge of the nozzle=0.18m3/s, area of the jet=7500sq.mm,

power available at the shaft=44 kW and mechanical efficiency=94%. Calculate the

power lost in the nozzle, in the runner and in mechanical friction.

b) Derive the expression for specific speed of a turbine.

6. Explain working of a centrifugal pump with neat sketch.

7. a) The following data relate to a proposed hydro electric station. Available head=28m,

catchment area=420sq.km, rainfall=140cm/year, percentage of total rainfall

utilised=68%, penstock efficiency=94%, turbine efficiency=80%, generator

efficiency=84% and load factor=44%. Calculate the power developed.

b) How do you estimate hydropower potential?

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Code No: RT22012







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Give the distribution of velocity in an open channel.

b) Water at 150C flows at 4 m/s in a 150 mm pipe. At what velocity must oil at

300C flow in a 75 mm pipe for the two flows to be dynamically similar. Take

�water at 150 C as 1.145x10

-6m

2/s and that for oil at 30

0c as 3.0x10

-6m

2/s.

c) Differentiate between impulse and reaction turnines.

d) What is meant by priming?

e) Give the role of surge tanks in hydroplants

f) Define load factor and utilisation factor.

PART –B

2. a) What is momentum correction factor. Also derive the expression for the same.

b) A power canal of trapezoidal section has to be excavated through hard clay at

the least cost. Determine the dimensions of the channel if it has to carry a

discharge of 14 m3/s with bed slope of 1:2500 and Maning’s N=0.020.

3. a) Explain any four dimensionless numbers.

b) If the capillary rise h depends on specific weight w, surface tension σ of the fluid

and the radius of the tube r show that h/r = Φ (σ/wr2).

4. A jet of water having a velocity of 30 m/s impinges on a series of vanes with a

velocity of 15 m/s. The jet makes an angle of 300 to the direction of motion of

vanes when entering and leaves at an angle of 1200. Sketch velocity triangles at

entrance and exit and determine the vane angles so that the water enters and

leaves without shock.

5. a) Define and differentiate unit and specific quantities.

b) A kaplan turbine produces 60000 kW under a net head of 25 m with an overall

efficiency of 90%. Taking the value of speed ratio ku as 1.6, flow ratio Ψ as 0.5

and the hub diameter as 0.35 times the outer diameter find the diameter and

speed of the turbine.

6. a) Derive the expression for minimum starting speed of a centrifugal pump.

b) A single acting reciprocating pump running at 50 r.p.m., delivers 0.01m3/s of

water. The diameter of the piston is 200 mm and stroke length 400 mm.

Determine the theoretical discharge of the pump, coefficient of discharge, slip

and percentage slip of the pump.

7. What are hydro electric power plants? Also give the advantages and

disadvantages.

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Code No: RT22014


MANAGERIAL ECONOMICS AND FINANCIAL ANALYSIS (Com. to CE, EIE)





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Distinguish Price Elasticity to that of Income Elasticity of Demand (4M)

b) Draw Iso-Quant Graph and list out characteristics of Iso-qunats (4M)

c) Explain the managerial theories of firm. (3M)

d) Draw graph for Product Life Cycle(PLC) and list out various stages of PLC (3M)

e) Determine Stock Velocity if Sales is Rs.20.00 Lakhs, Gross Profit is 25%,

Opening Stock is Rs. 4.50 Lakhs and Closing Stock is Rs.3.50 Lakhs and assume

number of days in a year is 365 Days

(4M)

f) Determine Accounting Rate of Return if Average Income is Rs.5.00 Lakhs, Initial

Cost of Investment is Rs.15.00 Lakhs, Scrap Value is Rs.2.00 Lakhs and assume

that the company follows Straight Line Method of Depreciation

(4M)

PART –B

2. a) List out various scope areas of managerial economics & its relevance to Civil

Engineering Discipline

(8M)

b) Draw Demand Graph and enlist various assumptions, properties and limitations

to law of demand.

(8M)

3. a) Draw graph for law of variable proportions and describe the behavior of average,

marginal and total production curves behavior in different phases.

(8M)

b) Explain the Break Even Analysis role in developing organization

(8M)

4. a) How price and output is determined under perfect competition for industry and

firm in short run?

(8M)

b) List different methods of pricing and explain any two methods of pricing in

detail?

(8M)

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Code No: RT22014

5. a) Differentiate features, merits and demerits Sole-trader and Partnership form of

business organization?

(8M)

b) What are the different objectives and features of establishing Public Sector

Undertakings (PSUs) by Government?

(8M)

6. a) Differentiate Accounting Concepts & Conventions and explain any six of them. (8M)

b) Journalize the following entries in the Books of M/s. Rock Well Industries Ltd.

No Date Description Rs Lakhs.

1 01-01-2016 Started Business with cash 5.00

2 02-01-2016 Deposited in Andhra Bank 3.00

3 05-01-2016 Purchased Goods on Credit from ABC Ltd 15.00

4 08-01-2016 Sold goods on Credit to XYZ Ltd 5.00

5 10-01-2016 Paid Freight Charges by Cheque 0.25

6 25-01-2016 Paid Salaries from Bank 2.00

7 30-01-2016 Drawn Cash from Bank 5.00

8 31-01-2016 Purchased Furniture on Credit from GBL 1.20

(8M)

7. a) Compare features merits and demerits of Pay Back Period and Accounting Rate

of Return methods of capital budgeting.

(8M)

b) Determine Pay Back Period, Accounting Rate of Return for the following

information

Year Investment 2011 2012 2013 2014 2015 Scrap

Cash flow

(Rs Lakhs) 30.00 7.00 6.50 8.50 3.00 5.75 5.00

(8M)

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Code No: RT22014







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Explain the demand factors. (4M)

b) Differentiate internal and external economies of scale of production (3M)

c) Features of perfect competition (3M)

d) List various contents in partnership deed (4M)

e) Determine Debtors Velocity if Sales is Rs.30.00 Lakhs, Credit Sales is 80%,

Opening Balance of Debtors is Rs.7.50 Lakhs and Closing Balance of Debtors is

Rs.4.50 Lakhs and assume number of days in a year is 365 Days.

(4M)

f) Determine Pay Back Period for the following information in Lakhs of Rupees

Initial Cost I-Year II-Year III- Year IV-Year V-Year

15.00 3.00 4.50 5.50 3.50 2.75

(4M)

PART -B

2. a) Explain the Law of Demand? Explain the difference type of income and price

Elastic types.

(8M)

b) Estimate Demand for year 2025 using method of least squares with the help of

following information:

Year 1991 1995 1999 2011 2015

Sales in Rs. Lakhs 2 5 8 12 20

(8M)

3. a) What are the reasons, sources for economies of scale? List and explain various

types of internal economies of scale?

(8M)

b) Determine BEP, Fixed Cost, and PV Ratio for the following information:

Description 2014-15 2015-16

Sales(Rs. Lakhs) 12.00 24.00

Profit(Rs. Lakhs) 4.00 12.00

(8M)

4. a) How price and output is determined under Monopolistic competition for group and

firm in both short run & long run?

(8M)

b) What are the situations, objectives and reasons for fixing price? Also explain any

four modern methods of price fixation?

(8M)

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Code No: RT22014

5. a) Differentiate features, merits and demerits Private Limited and Public Limited

Companies?

(8M)

b) Discuss the Business cycles role in changing Scenario of Business

(8M)

6. a) What are subsidiary books? Explain in detail about any four of them along with

proper formats?

(8M)

b) Compute Current ratio, Quick Ratio and Cash Ratio with the help of following

information:

No Description Rs. Lakhs

1 Cash 2.25

2 Bank 15.50

3 Creditors 2.50

4 Bills Payables 4.50

5 Debtors 8.00

6 Bills Receivables 2.00

7 Loan from Bank 3.50

8 Loans and Advances to Suppliers 5.00

9 Bank Over Draft 1.50

10 Prepaid Expenses 0.50

11 Outstanding Incomes 0.25

12 Outstanding Expenses & Salaries 1.00

13 Marketable Securities 6.00

14 Short Term Investments 4.00

15 ST Fixed Deposits 2.00

(8M)

7. a) Compare features, merits and demerits of Accounting Rate of Return, Profitability

Index and Internal Rate of Return methods of capital budgeting.

(8M)

b) Determine Internal Rate of Return for the following information regarding

Project-Z


Cash flow

(Rs Lakhs) 25.00 6.00 5.50 4.50 6.00 2.75 2.00

PV Factor

10% 1.00 0.909 0.826 0.751 0.683 0.621 0.621

PV Factor

14% 1.00 0.877 0.769 0.675 0.592 0.519 0.519

(8M)

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Code No: RT22014







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Differentiate Income Elasticity & Promotional elasticity (4M)

b) Differentiate Average Cost and Marginal Cost (4M)

c) Explain Methods of pricing (3M)

d) Explain clauses in Memorandum of Association (3M)

e) Determine Current Ratio If Cash Rs.2.50 Lakhs, Bank Rs. 6.50 Lakhs, Debtors

Rs. 10.00 Lakhs, Stock Rs.2.00 Lakhs, Bills Receivables Rs. 2.00 Lakhs, Bills

Payable Rs. 3.00 Lakhs, Creditors Rs.6.00 Lakhs and Bank Over Draft Rs.2.50

Lakhs

(4M)

f) Determine Net Present Value for the following information in Lakhs of Rupees

Initial Cost I-Year II-Year III- Year

6.00 3.50 2.50 1.50

Present Value @ 10% 0.909 0.826 0.751

(4M)

PART -B

2. a) What is Managerial Economics? What are the objectives, scope and uses of

managerial economics?

(8M)

b) What is Demand Elasticity? Explain different methods of Demand Elasticity.

(8M)

3. a) What is a production function? What are the different types of production

functions used in short and long run?

(8M)

b) Determine Sales Volume to get a desired profit as given in the table:

Description ABC Ltd XYZ Ltd PQR Ltd

Sales Price Per Unit 50 100 25

Variable Cost Per Unit 40 90 20

Fixed Cost (Rs. Lakhs) 10.00 25.00 15.00

Desired Profit(Rs. Lakhs) 25.00 15.00 5.00

(8M)

4. a) How price and output is determined under Monopoly and Monopolistic

competition for in short run?

(8M)

b) How different methods of pricing is useful for fixing price for existing and new

products depending on Product Life Cycle Stages and Business Cycle stages?

(8M)

5. a) Differentiate features, merits and demerits Cooperative Society and Joint Stock

Companies?

(8M)

b) Compare contents in Memorandum of Association and Articles of Association?

(8M)

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Code No: RT22014

6. a) Explain the difference between Funds flow and cash flow statements. (8M)

b) Prepare Three Column Cash in the Books of M/s. MIC Ltd.

No Date Description

1 01-12-2015 Opening Balance of cash Rs.4.00 Lakhs

2 03-12-2015 Opening Balance of Bank Rs.8.00 Lakhs

3 06-12-2015

Purchased Goods on Credit from ABC Ltd for Rs.

15.00 Lakhs and Paid Cash of Rs. 1.50 Lakhs and

rest on credit

4 10-12-2015

Sold goods on Credit to XYZ Ltd Rs. 30.00 Lakhs,

Received Cash of Rs.2.00 Lakhs &a bank cheque for

Rs.18.00 Lakhs and rest on credit

5 13-12-2015 Paid Freight Charges by Cheque Rs.1.25 Lakhs

6 17-12-2015 Paid Salaries from Bank Rs.1.15 Lakhs

7 20-12-2015 Drawn Cash from Bank Rs.0.50 Lakhs

8 24-12-2015 Purchased Furniture on Credit from M/S. Tumbi Rs.

4.00 Lakhs

9 26-12-2015 Purchased A/C from M/S. Godrej Ltd Rs. 1.00

Lakhs paid through bank

10 28-12-2015 Purchased Motor Car on Credit from M/S. BMW Rs.

40.00 Lakhs and paid cash of Rs.1.00 Lakhs

11 30-12-2015 Received a cheque from XYZ Ltd for Rs.9.00 Lakhs

and Rs.1.00 Lakhs discount

12 31-12-2015 Paid a cheque from ABC Ltd for Rs.12.00 Lakhs and

Rs.1.50 Lakhs discount

(8M)

7. a) Compare features merits and demerits of Net Present Value and Internal Rate of

Return methods of capital budgeting.

(8M)

b) Determine Net Present Value for the following information

Project Investment 2011 2012 2013 2014 2015 Scrap

X Cash flow

(Rs Lakhs) 25.00 6.00 5.50 4.50 6.00 2.75 2.00

Y Cash flow

(Rs Lakhs) 15.00 2.00 3.50 7.50 8.00 2.00 4.00

PV Factor 10% 1.00 0.909 0.826 0.751 0.683 0.621 0.621

(8M)

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Code No: RT22014







~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

PART –A

1. a) Explain the Explicit Cost Vs Implicit Cost (4M)

b) Identify formula for Profit Volume Ratio and list uses of PV Ratio (4M)

c) Features of monopoly competition (3M)

d) Differences between private limited and public limited companies (3M)

e) Determine Debt-Equity Ratio and Proprietary Ratio If Fixed Assets Rs.25.00

Lakhs, Equity Capital Rs. 15.00 Lakhs, Debentures Rs. 10.00 Lakhs, Reserves and

Surplus Rs.7.50 Lakhs, Premium on Shares & Debentures Rs. 4.00 Lakhs, and

Goodwill Rs.1.50 Lakhs

(4M)

f) Determine Profitability Index for the following information in Lakhs of Rupees

Initial Cost I-Year II-Year III- Year

8.00 5.50 4.50 3.50

Present Value @ 10% 0.909 0.826 0.751

(4M)

PART –B

2. a) What do you understand by different distinctions of demand how they are useful

in estimation of demand for a product in hypothetical market?

(8M)

b) Estimate Demand for year 2030 using method of least squares with the help of

following information:

Year 2001 2004 2008 2010 2015

Sales in Rs. Lakhs 4 2 6 10 12

(8M)

3. a) What is Cost-Output Relationship? Explain the behavior of various curves in both

short and lung run.

(8M)

b) Determine BEP, Fixed Cost, and PV Ratio for the following information:

Description 2014-15 2015-16

Sales(Rs. Lakhs) 10.00 48.00

Profit(Rs. Lakhs) 4.00 20.00

(8M)

4. a) Differentiate features of Perfect competition, Monopoly and Monopolistic

Markets?

(8M)

b) Explain the Cost-Volume profit analysis role in Business decision. (8M)

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Code No: RT22014

5. a) Differentiate features of Sole-trader, Hindu Undivided Family(HUF) and

Cooperative Society form of organizations?

(8M)

b) Explain the concepts of Business cycles.

(8M)

6. a) What are the financial statements and explain different techniques of analyzing

them?

(8M)

b) Compute Current ratio, Quick Ratio and Cash Ratio with the help of following

information:

No Description Rs. Lakhs

1 Cash 5.25

2 Bank 15.00

3 Creditors 12.00

4 Bills Payables 4.00

5 Debtors 6.00

6 Bills Receivables 4.00

7 Loan from Bank 1.50

8 Loans and Advances to Suppliers 2.00

9 Bank Over Draft 4.50

10 Prepaid Expenses 1.50

11 Outstanding Incomes 2.25

12 Outstanding Expenses & Salaries 1.50

13 Marketable Securities 8.00

14 Short Term Investments 3.00

15 ST Fixed Deposits 5.00

(8M)

7. a) Compare features merits and demerits of Pay Back Period and Accounting Rate of

Return methods of capital budgeting.

(8M)

b) Determine Pay Back Period and Profitability Index for the following information

about Project X


Cash flow

(Rs Lakhs) 10.00 2.00 3.00 4.50 5.00 3.75 1.50

(8M)

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SET - 4 R13


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