Tunnel Engineering

In the wooded bulk-head, used for mucking in steep grade tunnels_____.

  • A. One opening is provided
  • B. Two openings are provided
  • C. Three openings are provided
  • D. No opening is provided
Answer: Option B.
Explanation: 

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

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