Tunnel Engineering MCQ Questions & Answers | Civil Engineering Page-7 section-1

61.
In the given figure drill holes, heading, mucking and benching are numbered as 1, 2, 3, 4; The correct sequence is:

A. 4, 1, 2, 3

B. 1, 2, 3, 4

C. 4, 1, 3, 2

D. 3, 4, 1, 3

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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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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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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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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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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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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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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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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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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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Tunnel Engineering MCQ Questions & Answers | Civil Engineering

61. In the given figure drill holes, heading, mucking and benching are numbered as 1, 2, 3, 4; The correct sequence is:

Answer & Solution

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

Answer & Solution

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

Answer & Solution

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

Answer & Solution

Answer & Solution

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

Answer & Solution

67. Drift method of tunneling is used to construct tunnels in

Answer & Solution

Answer & Solution

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

Answer & Solution

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

Answer & Solution

61.
In the given figure drill holes, heading, mucking and benching are numbered as 1, 2, 3, 4; The correct sequence is:

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

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

64.
As compared to a single free face, if a charge of explosive is placed equidistant from two faces, then the yield

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

67.
Drift method of tunneling is used to construct tunnels in

69.
Pick up the correct statement from the following during tunnel excavation,

70.
In case of drift method of tunnelling, the drift may be excavated at