Tunnel Engineering

The following tunnels were constructed in different countries for different purposes:
1.Emperor Claudius built the first Roman tunnel
2.The first highway tunnel was constructed in Hungary
3.The first underground railway tunnel was constructed in Great Britain
4.The first navigational tunnel was constructed in France.
The correct chronological development of these tunnels is:

  • A. 4, 1, 3, 2
  • B. 1, 4, 2, 3
  • C. 2, 3, 1, 4
  • D. 3, 2, 4, 1
Answer: Option B.

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

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