laxmi institute of technology, sarigamtangential method for the following conditions: a) both angles...

Laxmi Institute of Technology, Sarigam

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



ASSIGNMENT: 1

Name of Subject: - Advanced Surveying Subject Code: - 2140601

Given Date: - 12-01-19

TACHEOMETRY SURVEYING

Sr. No. Name of Question

1 Differentiate

a) Fixed Hair method and Movable Hair method

b)Stadia Method and Tangential Method

2 What is Tacheometer? Explain with neat sketch Principle of

Tacheometer

3 Derive the equation for Horizontal and vertical distance in the fixed

hair method for the following condition:

a) When the line of sight is horizontal and staff is held vertically

b)When the line of sight is inclined and staff is held vertically

4 Derive the expression for horizontal and vertical distance by the

tangential method for the following conditions:

a) Both angles are angles of elevation

b) Both angles are angles of depression

c) One angle of elevation and other of depression

5 What are the purposes of Tacheometric Surveying? What are the

Advantages of Tacheometric Surveying?

6 The following Observations were made in Tacheometric survey.

Determine the Constants of Tacheometer.

Inst station Staff station Stadia readings Distance

O A 0.505,0.755,1.005 50

O B 1.20,1.70,2.20 100

7 Determine the gradient from point A to another point B from the

following observations made with a tacheometer having k=100 and

c=0. The staff held vertically.

Inst

station

Staff

station

Bearing Vertical

angle

Staff readings

P A 1250 +8025’ 1.155,1.710,2.265

P B 2150 +3018’ 1.40,2.22,3.04



8 The following observations were made with tacheometer with staff

held vertical. Determine the R.L of P and Q. The constants of

instrument are 100 and 0.RL of P is 100m.

Inst

station

H.I. Staff

station

Vertical

angle

Staff readings

P

1.5m A +50 1.55,1.30,1.05

B +40 2.00,1.72,1.44

9 Find the Gradients from P to Q using the data given in the table.

Inst

station

Staff

station

Line Bearing Vertical

angle

Staff readings

A P AP 84036’ +3030’ 1.35,2.10,2.85

A Q AQ 142024” +2045’ 1.955,2.875,3.765

The staff held normal to the line of sight in both the cases. Value of

tacheometric constants is 100 and 0.3.

10 The vertical Angles to vanes fixed at 1m and 3m above the foot of the

staff held vertically at station Q were +3030’ and +6050’ respectively.

If the Elevation of the instrument axis is 500m. Calculate horizontal

Distance of Q and its Elevation.

11 Solve Example 10 Considering 1=3030’ as angle of elevation and

2=6050’ as angle of depression.slums, Explain the reasons of slum

formation, effects of slums characteristics of slums in detail.

12

Solve Example 10 Above if both the angles are angle of depression.

Submission Date:

Name & Sign of Subject In-charge :

UPADHYAY RACHANA



ASSIGNMENT: 2


Given Date: -

GEODTIC SURVEYING


1 Differentiate a)Plane surveying and Geodetic surveying

2 Describe principle of triangulation system and show schematically different

sets of triangulation figures

3 What is mean by triangulation? How will you select the base line and

triangulation stations? Explain strength of figure.

4 Explain the extension of base with neat sketch.

5 What is triangulation in geodetic surveying? List the objects of geodetic

triangulation. Classify triangulation systems with details.

6 What is triangulation in geodetic surveying? List the objects of geodetic

triangulation. Classify triangulation systems with details.

7 Write a short note on: Station Marks.

8 Two triangulation stations A and B are 50km apart and have elevations 310m

and 350m respectively. Find the minimum height of signal required at B so

that the line of sight may not pass near the ground than 3.5m. The intervening may be assumed to have a uniform elevation of 250m.

9 Two stations A and B, 90km apart have elevations 25m and 350m above

mean sea level, Respectively. Determine the minimum height of signal at B

10 The altitude of two proposed stations A and B, 120km Apart, are respectively 450m and 750m. The intervening obstruction situated at C, 80 km from A has

an elevation of 500m. Ascertain if A and B are intervisible, and if necessary,

Find by how much B should be raised so that the line of sight must now where be less than 3.5 m above the surface of ground.

Submission Date:


UPADHYAY RACHANA



ASSIGNMENT: 3


Given Date: -

THEORY OF ERRORS


1 What are the various types of errors in surveying measurements?

2 Define weight of an observed quantity? Discuss various laws of

weights?

3 Define: a) Azimuth b) Nadir c) Zenith d) Residual error

e) Most probable error

4 Define: a) Accidental error b) True value c) Direct Observation

d) Conditioned Quantity e)True error f)Normal Equation

5 Enlist the rules should be applied for the distribution of the errors of

the field measurements.

6 In triangulation survey the following 8 observations of one of the angle

were made under identical condition

75042’10”, 75041’50’’, 75041’40’’, 75042’00’’

75041’50’’, 75042’00’’, 75042’10”, 75042’20’’

Determine: i) Standard deviation

ii)Probable error of a single observation

iii)Probable error of mean

iv)Most probable value of the angle

7 The following are the 3angles observed at a stations closing the

horizon, along with their probable error of measurement, Determine

their corrected values.

A=85013’10’’ ± 2’’ B=130049’30’’ ± 3’’ C=143057’10’’ ± 4’’

8 Find the most probable value of the angle A from the following

observation equation:

A= 30028’40’’ 3A=91025’55’’ 4A=121054’30’’

9 The following are the observed angle being subject to the condition

that A+B=C

A=30012’28.2’’ B=35048’12.6’’ C=66000’44.4’’values of A, B and C at

a station



10 Determine most Probable values of the angles of a triangle ABC, from

the following data. Use method of correlates.

A=49020’13.4’’ Weight 1 B=50029’15.2’’ Weight 2

C=80010’25.4’’ Weight 3

Submission Date:


UPADHYAY RACHANA



ASSIGNMENT: 4


Given Date: -

FIELD ASTRONOMY


1 Define : i)Latitude ii)Longitude B

2 Explain the following astronomical terms with neat sketch: i)The

celestial sphere ii)The hour angle iii)The horizon iv)Declination

3 Define the terms: i)Sensible Horizon ii)Visible Horizon iii)Equinoctial

points iv)The ecliptic

4 What is Latitude of place? Prove that the Altitude of the pole is always

equal to the Latitude of the Observer’s position.

5 What is Spherical Triangle? State the Properties of Spherical triangles.

6 What is azimuth? Explain various methods of determination of

azimuth of a survey line.

7 Determine the difference of latitude between two points 1 & 2 if their

latitudes are: (a) 28035’N, 58036’N (b) 18024’N, 34045’S

8 Determine the Azimuth & altitude of a star from the following data

Latitude of the observer = 480N

Hour Angle of Star = 430

Declination of star = 18020’N

9 Determine the azimuth and altitude of star from the following data:

Latitude of the observer = 460N

Hour Angle of Star = 3300

Declination of star = 12020’S

10 At a place on latitude 43042’34” N an observation of the star was made

at eastern elongation. The declination of the star was 71055’14”N.

determine the hour angle, azimuth and the altitude of the star.

Submission Date:


RITU SINGH



ASSIGNMENT: 5


Given Date: -

AERIAL PHOTOGRAMMETRY


1 What is the function of aerial camera? Describe schematically its

essential part

2 Define: 1)Tilt 2) Crab 3) Isocentre 4)Drift 5) Overlap 6)Principal point

7) Side Lap

3 What is relief displacement? Derive an expression for the relief

displacement in a vertical photograph.

4 Define: 1) Oblique Photograph 2) Exposure Station 3) Focal Length

4)Nadir point 5) Swing

5 Write a short note on: 1)Stereoscope 2) Parallax Bar.

6 What is vertical photograph? Derive an expression for the scale of

vertical photograph.

7 Define: 1) Parallax 2) Parallactic angle 3) Stereo pair

4) Stereoscopic Viewing 5) Stereoscopic Fusion

8 Determine the scale of photograph for terrain lying at elevation of 70m

& 250m. if vertical photograph was taken at altitude of 1500m. take

focal length of camera 15cm.

9 A line AB measures 15cm on a photograph taken with a camera having

focal length of 20cm, the same line measures 3.5cm on a map drawn to

a scale of 1/50000. Calculate flying height of the aircraft, if average

altitude is 400m

10 The scale of an aerial photograph is 1cm = 100cm and photograph size

is 20x20cm. Determine the numbers of photograph required to cover

an area of 20x20km, If longitudinal lap is 50% and side lap is25%

Submission Date:


RITU SINGH



ASSIGNMENT: 6


Given Date: -

MODERN SURVEYING INSTRUMENTS.


1 Explain total station giving its use and functions.

2 Explain features and its field application of total Station.

3 What are the different types of EDM instrument? Explain any one in detail

4 Describe how total station has brought revolution In surveying.

5 5 Discuss basic principle of operation and different Techniques for

EDM instruments

6 Write short note on electromagnetic spectrum.

Submission Date:


UPADHYAY RACHANA



ASSIGNMENT: 7


Given Date: -

REMOTE SENSING


1 What is basic principle of remote sensing? Discuss active and passive

remote sensing.

2 Explain the various applications of remote sensing in civil engineering.

3 Explain the basic principle of remote sensing.

4 Define remote sensing. Enlist types of remote sensing. List the

application of remote sensing.

5 Explain principle of electromagnetic energy interaction in atmosphere

and with earth surface

6 Discuss image interpretation techniques.Describe global positioning

system (GPS) in details.

Submission Date:


RITU SINGH



ASSIGNMENT: 8


Given Date: -

GEOGRAPHICAL INFORMATION SYSTEM


1 What are the objectives of GIS? Discuss the key components of GIS.

2 Explain the various applications of GIS in civil engineering.

3 Write a short note on Geospatial analysis.

4 Explain the integration of remote sensing and GIS.

5 Differentiate between topographic map and thematic map

Submission Date:


RITU SINGH

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

Academic Year 2018-19 Centre Code: 086 Examination : Mid Semester -1 Examination Branch: Civil Engineering Semester: 4th Sub Code: 2140601 Sub: A.S. Date: 29/01/2019 Time: 9:00-10:00 Marks: 20

Q.1 Explain the principle of tacheometry? 02

Q.2 Derive the expression for distance and elevation formula for staff held normal to the

line of sight and line of sight being inclined.

03

Q.3 Write a short note on analytical lens with its advantages and disadvantages. 03

Q.4 Determine the constants of a tacheometer if the line of collimination is horizontal, the

stadia readings for the staff held at 25m and 50 m are respectively 1.800, 1.310 and

2.100, 1.110

02

Q.5 Explain longitude and latitude with fig. 04

Q.6 Explain Declination & Hour angle with fig. 04

Q.7 Explain Azimuth with fig. 02

laxmi institute of technology, sarigamtangential method for the following conditions: a) both angles...

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