Discussion
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- Question
The tunnels, the artificial underground passages are constructed for :
Options- A. highways
- B. railways
- C. sewerage
- D. water supply project
- E. All the above.
- Correct Answer
- All the above.
- 1. 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
- 2. 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
- 3. 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
- 4. High pressure grouting is generally restored for concreting in the lining if the rock strata is:
Options- A. highly fissured
- B. poor
- C. likely to get seepage of water
- D. All of the above. Discuss
- 5. To attain the required shape of the tunnel section, we use :
Options- A. easers
- B. trimmers
- C. cut holes
- D. chisels. Discuss
- 6. 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
- 7. 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. Discuss
- 8. 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
- 9. 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
- 10. 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
Tunnelling problems
Search Results
Correct Answer: Michigan cut
Correct Answer: 15 metres depth
Correct Answer: All the above.
Correct Answer: All of the above.
Correct Answer: trimmers
Correct Answer: 5 m to 6 m
Correct Answer: All of these.
Correct Answer: All of the above.
Correct Answer: All the above.
Correct Answer: All the these.
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