Jawaharlal Nehru Technological University Hyderabad

Jawaharlal Nehru Technological University Hyderabad B.Tech II SURVEYING Previous Question Paper (April/May - 2018 - R15)

B.Tech | II | I | R15 | April/May - 2018

Answer PaperPaper Code: 123AMMaximum Marks: 75Time: 3 Hours

Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.

Part A

125 marks
a
Differentiate between plain surveying and geodetic surveying.
2 marks

Answer

In plain surveying, the curvature of the earth is ignored, and the surface is treated as a plane, suitable for small areas (typically less than 250 sq km). In geodetic surveying, the earth's curvature is taken into account, and spherical trigonometry is used, which is necessary for large areas or high-precision geodetic control surveys.

b
What are the different methods of representing the scales of map? What is the advantage of a graphical scale?
3 marks

Answer

Scales are represented as an engineering scale (e.g., 1 cm = 10 m), a representative fraction (e.g., 1:1000), or a graphical scale. The advantage of a graphical scale is that it remains accurate even if the map shrinks or expands due to environmental conditions, as the scale bar changes proportionally with the drawing.

c
What is contour line? What is importance of contour maps in civil engineering works?
2 marks

Answer

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d
What are different errors in leveling? How would you minimize errors?
3 marks

Answer

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e
Discuss various methods of computation of volume of earthwork from the contour plan.
2 marks

Answer

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f
Draw the sketch of a two-level section, and derive an expression for the area of cross-section.
3 marks

Answer

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g
What is difference between a compass traverse and theodolite traverse?
2 marks

Answer

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h
What are different methods of making angular measurements?
3 marks

Answer

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i
What are the uses of an electronic total station?
2 marks

Answer

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j
Discuss the global positioning system in surveying.
3 marks

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Part B

210 marks
a
Discuss briefly the classification of surveying based on (i) purpose and (ii) instruments
5 marks

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b
Differentiate between:
i) Direct vernier and retrograde vernier
ii) Double vernier and double-folded vernier
iii) Plain scale and diagonal scale.
5 marks

Answer

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OR
310 marks
a
Discuss the care and adjustments of surveying instruments.
5 marks

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b
What are the different types of plotting scales? What are the qualities of a good plotting scale?
5 marks

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410 marks
a
What is profile leveling? Describe the procedure for conducting profile leveling of a proposed highway.
5 marks

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b
Find the distance to the visible horizon from the top of a light house 50m high. What is the dip of horizon? Take the radius of earth equal to 6370km.
5 marks

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OR
510 marks
a
Discuss the characteristics of contours. Give suitable sketches.
5 marks

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b
A staff was found out of plumb by 0.20m in a height of 3m. Determine the correct reading corresponding to a staff reading of 3m.
5 marks

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610 marks
a
How would you compute the cross-section area of a multi-level section by the method of independent coordinates?
5 marks

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b
What is Prismoidal correction? Derive an expression for the Prismoidal correction of a two level section.
5 marks

Answer

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OR
710 marks
a
Calculate the side widths and cross-section area of cut and fill in a side hill section having the following dimensions:
Central height in cut 1m
Formation width 22m
Side slope in cut 1 to 1
Side slope in fill 2 to 1
Traverse slope 5.5 to 1
5 marks

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b
Explain the method of computation of volume by the:
i) Trapezoidal rule
ii) Prismoidal formula.
5 marks

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810 marks
a
Discuss the procedure for the measurement of horizontal angles in a closed traverse by the method of included angles. How does it differ from the method of direct angle?
5 marks

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b
What are the different conditions which should be satisfied when theodolite is permanent adjustments?
5 marks

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OR
910 marks
a
Discuss the various methods of locating details in a theodolite traverse
5 marks

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b
Discuss the procedure of making liner measurements in traverse surveying. Discuss the various errors and corrections.
5 marks

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10
What do you understand by electronic tachometers? What is the difference between an EDM mounted on theodolite and an electronic tachometer?
10 marks

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OR
1110 marks
a
Describe briefly about the classification of total stations.
5 marks

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b
Write short notes on:
i) Robotic total station
ii) Semi-automatic total station
iii) Automatic total station.
5 marks

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This page contains the solved question paper with answers of SURVEYING from Jawaharlal Nehru Technological University Hyderabad for B.Tech AG II I, April/May - 2018, R15.

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