31. |
How high do the locks of the Panama Canal have to raise and lower boats?
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Answer:
Option (c) |
32. |
1 mile = ______ km
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Answer:
Option (a) |
33. |
Tunneling is required in case of ____________
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Answer:
Option (d) |
34. |
The line at which the tunnel wall breaks from sloping outward can be given as _________
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Answer:
Option (a) |
35. |
Which method can be adopted in case of rock tunneling?
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Answer:
Option (a) |
36. |
Pick the tunnel which is not a sub-group of traffic tunnels.
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Answer:
Option (b) |
37. |
Tunnels associated with hydro power generation are called __________
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Answer:
Option (d) |
38. |
Type of hydro power tunnel where water is conveyed under high pressure to turbines is __________
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Answer:
Option (c) |
39. |
Subway and tube railways are studied under which type of tunnels?
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Answer:
Option (b) |
40. |
Geologically, how many classes of tunnels are recognized?
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Answer:
Option (b) |