Water Supply Engineering

While determining the yield of open wells by the pumping test_____.

  • A. Velocity of recharging water, increases with depression head
  • B. Depression head resulting at critical velocity, is called critical depression head
  • C. Working head is generally limited to ?rd of the critical depression head
  • D. Maximum safe yield of an open well, is expected at critical depression head
Answer: Option D.
Explanation: 

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

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