Monday, August 4, 2014

Surveying- II (N.S.) B.Tech. 4th Sem Examination (CE-224) - HPTU- 2014

Please find here the question paper set by HPTU for B.Tech. 4th Semester Examination June 2014, for Surveying-II (CE-224).

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B.Tech. 4th Semester Examination
Surveying -II (N.S.)
CE-224
Time: 3 Hours                                                                                Max. Marks: 100
The candidates shall limit their answer precisely within the answer book (40 pages) issued to them and no supplementary/continuation sheet will be issued.
Note: Attempt five questions in all selecting one question from each section A, B, C and D and all subparts of Section E are compulsory.
Section - A
1. (a) Two parallel railway lines are to be connected by a reverse curve. If the lines are 10 m apart, the maximum distance between tangent points measured parallel to the straight is 50 m, find:
(b) radius R if R1= 50m.             Also caculate the length of both curves.     (14)
(b) Discuss the characteristics of a transition curve by the method of tangential method. (6)
2. Describe the weight of quantities. How weight of different quantities are allocated? Discuss various laws of weights.                                                                         (20)

Section - B
3. (a) A base line was measured with steel tape which was exactly 30 m at 20 degree Celsius at a pull of 100 N. The measured length was 1500.00 m. If the temperature during measurement was 28 degrees Celsius and pull applied was 150 N, determine correct length of line if cross section area of tape = 2.5 mm^2, coefficient of expansion 3.5*10^(-6) per degree Celsius. Modulus of elasticity = 2.1 * 10^3 N/mm^2.                                                                            (15)
(b) Differentiate between triangulation & trilateration.                               (5)
4. Two triangulation stations A & B 60 km above having elevations of 265 m and 385 m respectively, the intervening ground may be assumed to have a uniform elevation of 220 m. Find the minimum height of signal at B so that the line of sight may not pass neat the ground less than 3 m.                                                                                                        (20)

Section - C
5. Draw the expression to determine the height of the object when the two instruments stations are not in the same vertical plane.                                                                  (20)

6. Following observations were made in trignometric levelling:
Observed altitude = 3 Degree 10 minute 49 seconds.
Height of instrument = 1.24 m
Height of signal  = 5.32 m
Horizontal distance = 4935 m
Coefficient of refraction = 0.07
Rsinj" = 30.88m
Correct the observed altitude for the height of signal, refraction and curvature. (20).

Section - D
7. Explain in detail the basic geometric characteristics of aerial photographs. (20)
8. (a) A rectangular agricultural field measures 8.65 cm long & 5.13 cm wide on a vertical photograph having scale of 1:20,000. Find are of field.                              (6)
(b) What is the significance of equation of time? How do we calculate the local time at a location.?                                                                                             (14)

Section - E
9. Attempt all parts:
(a) If the first chord gradient is 0.16, calculate the gradient of fourth chord.
(b) What is the basic criteria for the design of transition curves?
(c) Differentiate between triangulation and traversing.
(d) Define "extension of base line".
(e) How do you account correction for curvature of earth in trigonometric levelling?
(f) What is axis-signal correction?
(g) Define "Tilt displacement" in photogrammetry.
(i) Explain most probable value.                                                  (2*10 = 20)

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