Discussion
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- Question
For hauling muck from the tunnel, the following type of muck-car is used :
Options- A. muck box
- B. balle-ship
- C. side dump car
- D. U-bottom
- E. All of these.
- Correct Answer
- All of these.
- 1. The length of the needle beam used in needle beam method of tunnelling is usually
Options- A. 2 m to 4 m
- B. 2.5 m to 6 m
- C. 4 m to 7 m
- D. 5 m to 6 m Discuss
- 2. The tunnels, the artificial underground passages are constructed for :
Options- A. highways
- B. railways
- C. sewerage
- D. water supply project
- E. All the above. Discuss
- 3. The cut of a tunnel face is shown in given figure. This is called
Options- A. Michigan cut
- B. Burn cut
- C. Fan cut
- D. Horizontal cut. Discuss
- 4. For highways, tunnelling is preferred to if the open cut exceeds :
Options- A. 10 metres depth
- B. 15 metres depth
- C. 20 metres depth
- D. 25 metres depth. Discuss
- 5. The most commonly adopted pattern of cut holes is :
Options- A. horizontal wedge cut
- B. pyramid cut
- C. fan cut
- D. V-cut
- E. All the above. Discuss
- 6. In case of drift method of tunnelling, the drift may be excavated at
Options- A. the centre
- B. the bottom
- C. the top
- D. the side
- E. All of the above. Discuss
- 7. Which one of the following methods is generally used for the layout of the muck-car tracks
Options- A. the grass hopper method
- B. passing track method
- C. the cherry picker
- D. California crossing, Dixon conveyor
- E. All the above. Discuss
- 8. Which one of the following methods of tunnelling does not require the use of time bearing :
Options- A. Linear plate method
- B. Shield method
- C. Compressed air method
- D. Mechanical tunneler i.e. mole method
- E. All the these. Discuss
- 9. Which one of the following statements is not correct for heading and benching method of tunnelling?
Options- A. Drilling and mucking can be done simultaneously
- B. Benching provides a plateform for working on heading
- C. Removal of muck from the heading is very easy
- D. None of these. Discuss
- 10. The following operations are generally employed for tunnelling in hard rock.
1. Removing ground water,
2. Loading holes and firing the explosive
3. Setting up and drilling
4. Grouting and lining
5. Removing muck
6. Ventilation and removing explosion dust
The correct sequence is :
Options- A. 3 2 6 5 1 4
- B. 3 4 6 1 5 2
- C. 4 1 2 3 6 5
- D. 5 4 2 1 3 6 Discuss
Tunnelling problems
Search Results
Correct Answer: 5 m to 6 m
Correct Answer: All the above.
Correct Answer: Michigan cut
Correct Answer: 15 metres depth
Correct Answer: All the above.
Correct Answer: All of the above.
Correct Answer: All the above.
Correct Answer: All the these.
Correct Answer: Removal of muck from the heading is very easy
Correct Answer: 3 2 6 5 1 4
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