. Which one of the following methods is adopted for permanent drainage of tunnels : Options: A . &nbspprovision of longitudinal drains B . &nbspcontinuous open drains C . &nbspconcrete lining D . &nbspAll the above.

. Which one of the following methods is adopted for permanent drainage of t

Question

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

Options:

A . provision of longitudinal drains

B . continuous open drains

C . concrete lining

D . All the above.

Answer: Option D

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Question 1. . In the wooded bulk-head, used for mucking in steep grade tunnels,....

Question 2. . An overhead track on a large truss frame is required in case of car changer by....

Question 3. . Which one of the following methods is generally used for the layout of the muck-car tracks....

Question 4. . For hauling muck from the tunnel, the following type of muck-car is used :....

Question 5. . Pick up the mechanical ventilation method used for tunnels from the following....

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