Tunnel Engineering MCQ Questions & Answers

61

In the given figure drill holes, heading, mucking and benching are numbered as 1, 2, 3, 4; The correct sequence is:
Tunnel Engineering mcq question image

A) 4, 1, 2, 3 B) 1, 2, 3, 4 C) 4, 1, 3, 2 D) 3, 4, 1, 3

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Answer & Solution

Answer: Option C

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62

American method of tunnelling
(i) Is suitable for large sized tunnels
(ii) Is not suitable for railway or highway tunnels
(iii) Requires heavy timbers

A) Only (i) is correct B) (i) and (iii) are correct C) (ii) and (iii) are correct D) (i) and (ii) are correct

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Answer & Solution

Answer: Option A

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63

If ‘D’ is the diameter of tunnel in meters, then the thickness of lining in mm, as per the empirical formula is given by

A) 42 D B) 82 D C) 104 D D) 124 D

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Answer & Solution

Answer: Option B

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64

As compared to a single free face, if a charge of explosive is placed equidistant from two faces, then the yield

A) Remain same B) Decreases C) Increases by 2.25 times D) Increases by 3.5 times

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Answer & Solution

Answer: Option C

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65

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
Select your answer

A) Both A and R is true and R is the correct explanation of A B) Both A and R is 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

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Answer & Solution

Answer: Option C

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66

Assertion A: English method of tunnelling requires more time as compared to other methods of tunnelling.
Reason R: In English method of tunnelling, the masons and excavators have to work alternately
Select your answer

A) Both A and R is true and R is the correct explanation of A B) Both A and R is true and R is not the correct explanation of A C) A is true but R is false D) A is false but R is true

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Answer & Solution

Answer: Option A

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67

Drift method of tunneling is used to construct tunnels in

A) Soft grounds B) Rock C) Self supporting grounds D) Broken grounds

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Answer & Solution

Answer: Option B

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68

The following tunnels were constructed in different countries for different purposes:
1.Emperor Claudius built the first Roman tunnel
2.The first highway tunnel was constructed in Hungary
3.The first underground railway tunnel was constructed in Great Britain
4.The first navigational tunnel was constructed in France.
The correct chronological development of these tunnels is:

A) 4, 1, 3, 2 B) 1, 4, 2, 3 C) 2, 3, 1, 4 D) 3, 2, 4, 1

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Answer & Solution

Answer: Option B

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69

Pick up the correct statement from the following during tunnel excavation,

A) Oxygen should not be less than 19.5% B) Carbondioxide should not be more than 0.5% C) Hydrogen sulphide should not be more than 0.001% D) All of the above

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Answer & Solution

Answer: Option D

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70

In case of drift method of tunnelling, the drift may be excavated at

A) The centre B) The top or bottom C) The side D) All of the above

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Answer & Solution

Answer: Option D

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Tunnel Engineering MCQ Questions & Answers | Civil Engineering