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- Question
For initial surveys of tunnels, the following activities are involved:
1. Marking portal point with concrete pillars on the ground
2. Marking tunnel obligatory points on the topographical maps
3. Preliminary setting of the tunnel on the topographical Survey of India maps
3. Driving lines between the fixed obligatory points.
The correct sequence of the activities is :
Options- A. 3 2 4 1
- B. 1 2 3 4
- C. 4 3 1 2
- D. 2 4 3 1
- Correct Answer
- 3 2 4 1
- 1. If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by
Options- A. B = 0.22 H + d
- B. B = 0.33 H + d
- C. B = 0.44 H + d
- D. B = 0.55 H + d Discuss
- 2. In a three hinged arch, the bending moment will be zero
Options- A. at right hinge only
- B. at left hinge only
- C. at both right and left hinges
- D. at all the three hinges. Discuss
- 3. It ? is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is
Options- A. l n
- B.
n - C. ?
- D.
? n
Discuss
- 4. For the most economical trapezoidal open channel,
Options- A. half of the top width must be equal to one of the sloping sides
- B. the hydraulic mean depth must be equal to half the depth of flow
- C. the semicircle drawn with top width as diameter must touch the three sides of the channel
- D. All of these. Discuss
- 5. Setting out of Lemniscate transition curves, is done with
Options- A. perpendicular offsets
- B. radial offsets
- C. deflection angles
- D. polar deflection angles. Discuss
- 6. A construction schedule is prepared after collecting
Options- A. number of operations
- B. output of labour
- C. output of machinery
- D. quantity of various items
- E. all the above. Discuss
- 7. Which one of the following statements is true?
Options- A. The value of kinetic energy correction factor for turbulent flow lies between 1.03 to 1.06
- B. The value of kinetic energy correction factor for laminar flow is 2
- C. The practical value of kinetic energy correction factor for turbulent flow is unity
- D. all the above. Discuss
- 8. The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator
Options- A. eastward
- B. northward
- C. westward
- D. southward
- E. upward. Discuss
- 9. If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum perpendicular offset for the transition curve, is
Options- A. 0.70 m
- B. 1.70 m
- C. 2.70 m
- D. 3.70 m
- E. 4.70 m Discuss
- 10. The ratio of the inertia and viscous forces acting in any flow, ignoring other forces, is called
Options- A. Euler number
- B. Frode number
- C. Reynold number
- D. Weber number. Discuss
More questions
Correct Answer: B = 0.55 H + d
Correct Answer: at all the three hinges.
Correct Answer: l n
Correct Answer: All of these.
Correct Answer: polar deflection angles.
Correct Answer: all the above.
Correct Answer: all the above.
Correct Answer: eastward
Correct Answer: 2.70 m
Correct Answer: Reynold number
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