Tunnel Engineering MCQ Questions & Answers | Civil Engineering Page-3 section-1

21.
High pressure grouting is generally restored for concreting in the lining if the rock strata is:

A. Highly fissured

B. Poor

C. Likely to get seepage of water

D. All of the above

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22.
The cut of a tunnel face is shown in given figure. This is called

A. Michigan cut

B. Burn cut

C. Fan cut

D. Horizontal cut

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23.
The following operations are required for tunnelling in rocky terrain:
1.Removing the foul gases
2.Marking the tunnel profile
3.Setting up and drilling
4.Checking misfire
5.Mucking
The correct sequence is:

A. 1, 2, 3, 4, 5

B. 2, 3, 5, 4, 1

C. 4, 2, 1, 3, 5

D. 2, 3, 1, 4, 5

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24.
The length of the needle beam used in needle beam method of tunnelling is usually

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

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25.
Railway tunnels are generally

A. Polycentric

B. Rectangular

C. Parabolic

D. Circular

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26.
The method of draining in the tunnels, is generally known as

A. Foredrainage

B. Dewatering

C. Permanent drainage

D. All of the above

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27.
In the wooded bulk-head, used for mucking in steep grade tunnels,

A. One opening is provided

B. Two openings are provided

C. Three openings are provided

D. No opening is provided

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28.
Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater than

A. 2 m

B. 3 m

C. 4 m

D. 5 m

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29.
For B.G. single track railway, the height of the tunnel above top of rails should be

A. 5.5 m to 5.8 m

B. 5.8 m to 6.2 m

C. 6.7 m to 7.3 m

D. 7.3 m to 7.5 m

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30.
A good blast with a good yield is obtained if the cut hole is

A. Normal to face

B. Inclined at 45° to the face

C. Inclined at 15° to the face

D. Inclined at 30° to the face

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Tunnel Engineering MCQ Questions & Answers | Civil Engineering

21. High pressure grouting is generally restored for concreting in the lining if the rock strata is:

Answer & Solution

22. The cut of a tunnel face is shown in given figure. This is called

Answer & Solution

23. The following operations are required for tunnelling in rocky terrain: 1.Removing the foul gases2.Marking the tunnel profile3.Setting up and drilling4.Checking misfire5.MuckingThe correct sequence is:

Answer & Solution

24. The length of the needle beam used in needle beam method of tunnelling is usually

Answer & Solution

25. Railway tunnels are generally

Answer & Solution

26. The method of draining in the tunnels, is generally known as

Answer & Solution

27. In the wooded bulk-head, used for mucking in steep grade tunnels,

Answer & Solution

28. Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater than

Answer & Solution

29. For B.G. single track railway, the height of the tunnel above top of rails should be

Answer & Solution

30. A good blast with a good yield is obtained if the cut hole is

Answer & Solution

21.
High pressure grouting is generally restored for concreting in the lining if the rock strata is:

22.
The cut of a tunnel face is shown in given figure. This is called

23.
The following operations are required for tunnelling in rocky terrain:
1.Removing the foul gases
2.Marking the tunnel profile
3.Setting up and drilling
4.Checking misfire
5.Mucking
The correct sequence is:

24.
The length of the needle beam used in needle beam method of tunnelling is usually

25.
Railway tunnels are generally

26.
The method of draining in the tunnels, is generally known as

27.
In the wooded bulk-head, used for mucking in steep grade tunnels,

28.
Ribs are used for strengthening and stiffening the liner plate for tunnels of diameter greater than

29.
For B.G. single track railway, the height of the tunnel above top of rails should be

30.
A good blast with a good yield is obtained if the cut hole is