Tunnel Engineering

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
Answer: Option A.

IS 14665 gives details about elevators. It specifies the number, capacityof elevator and number of floors to be served.

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