tunnel engineering MCQs – Page 2

Practise focused tunnel engineering questions with marked answers for exam preparation and subject revision.

tunnel engineering Mcqs
21. American method of tunneling________________?
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A. ect the correct answer?

B. ) requires heavy timbers </strong>

C. is no, suitable for railway or highway tunnels

D. is suitable for large sized tunnels
22. Assertion A : When rock conditions are favorable, it will not be necessary to take up concrete lining concurrently with the driving operations till the full length of the tunnel has been driven through rock. Reason R : A tunnel through rock, hard or soft, does not need any concrete lining________________?
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A. Both A and R are true and R is the correct explanation of A

B. Both A and R are true but R is not the correct explanation of A

C. A is true but R is false

D. A is false but R is true

23. Which of the following lining material is useful for shield driven tunnels in sub aqueous regions ?
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A. timber

B. cement concrete

C. cast iron

D. stone masonry

24. Which one of the following tunnelling methods is used for laying under ground sewers ?
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A. Needle beam method

B. Army method

C. German method

D. Italian method

25. Drifters can be used to drill_________________?
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A. only up holes

B. horizontal or up holes

C. horizoral, down or up holes

D. only down holes

26. What is the correct sequence of the following events of construction of a shaft in rock ?
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A. drilling and blasting

B. mucking</strong>

C. timbering

D. pumping

27. In compressed air tunneling, the volume of free air provided is______________?
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A. 20 m3 per minute per m2 of face area

B. 6 m3 per minute per m2 of face area

C. 6 mJ per second per m2 of face area

D. 6 m3 per hour per m2 of face area