Tunnel Engineering MCQ Questions & Answers

31

For initial surveys of tunnels, the following activities are involved:
1.Marking portal point with concrete pillars on the ground
2.Marking tunnel obligatory points on the topographical maps
3.Preliminary setting of the tunnel on the topographical Survey of India maps
4.Driving lines between the fixed obligatory points
The correct sequence of the activities is:

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

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Answer & Solution

Answer: Option A

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32

In Belgium method of tunnelling

A) Construction of side walls is completed before invert and roof arch are built B) Construction of roof arch is completed before side walls and inverts are built C) Construction of invert is completed before side walls and roof arch are built D) Construction of invert and side walls is completed before roof arch is built

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Answer & Solution

Answer: Option B

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33

The advantages of providing a pair of tunnels as compared to only one large highway tunnel is:

A) Economy in cost of construction B) Avoidance of head on collisions C) Provision of separate exit and entrance of two traffic streams D) All the above

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Answer & Solution

Answer: Option D

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34

Which one of the following methods is adopted for permanent drainage of tunnels?

A) Provision of longitudinal drains B) Continuous open drains C) Concrete lining D) All the above

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Answer & Solution

Answer: Option D

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35

What is the correct sequence of the following events of construction of a shaft in rock?
1) Drilling and blasting
ii) Timbering
iii) Pumping
iv) Mucking
Select the correct answer

A) i, ii, iii, iv B) i, iv, ii, iii C) ii, i, iv, iii D) ii, iv, i, iii

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Answer & Solution

Answer: Option B

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36

Which one of the following is a component of a shield for tunneling?

A) Liner plate B) Trench jack C) Stiffener D) Cutting edge

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Answer & Solution

Answer: Option D

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37

The correct sequence of drilling equipment for increasing size of holes in tunnels is

A) Wagon drill, churn drill, shot drill B) Wagon drill, shot drill, churn drill C) Shot drill, churn drill, wagon drill D) Churn drill, wagon drill, shot drill

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Answer & Solution

Answer: Option A

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38

The difference of heights of the tunnels above rail tops of BG and MG tracks is kept

A) 0.30 m B) 0.45 m C) 0.60 m D) 0.75 m

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Answer & Solution

Answer: Option C

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39

For hauling muck from the tunnel, the following type of muck-car is used:

A) Muck box B) Side dump car C) U-bottom D) All of these

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Answer & Solution

Answer: Option D

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40

For B.G. single track, the section of the tunnel must have a width

A) 4.2 m to 4.5 m B) 4.5 m to 4.8 m C) 4.9 m to 5.5 m D) 5.5 m to 5.8 m

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Answer & Solution

Answer: Option C

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Tunnel Engineering MCQ Questions & Answers | Civil Engineering