In “full face” method of constructing tunnels, the first operation relates to Options: A . &nbspRemoval of bottom portion B . &nbspExcavation of one drift in the centre C . &nbspRemoval of top portion D . &nbspExcavation being done along the periphery

In “full face” method of constructing tunnels, the first operation relates t

Question

In “full face” method of constructing tunnels, the first operation relates to

Options:

A . Removal of bottom portion

B . Excavation of one drift in the centre

C . Removal of top portion

D . Excavation being done along the periphery

Answer: Option D

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Question 1. Concrete lining is provided concurrently with the driving operation in case of....

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Question 6. As compared to a single free face, if a charge of explosive is placed equidistant from two faces, then the yield....

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Question 9. Drift method of tunneling is used to construct tunnels in....

Question 10. The following tunnels were constructed in different countries for different purposes: 1.Emperor Claudius built the first....constructed in France.The correct chronological development of these tunnels is:

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