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A dam reservoir which is not provided with gate...

A dam reservoir which is not provided with gate controls on its spillway and other sluices is called ________________

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asked Aug 22, 2023 in Irrigation Engineering by Carter (75.2k points)

A dam reservoir which is not provided with gate controls on its spillway and other sluices is called ________________

(a) detention dam

(b) storage reservoir

(c) retarding basin

(d) flood control reservoir

I have been asked this question in a national level competition.

My query is from Reservoirs in division Reservoirs and Dam Reservoirs Planning of Irrigation Engineering

irrigation engineering
reservoirs and dam reservoirs planning
reservoirs

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1 Answer

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answered Aug 25, 2023 by Greg (106k points)

Correct option is (c) retarding basin

For explanation: Storage reservoir is the one having gates and valves installed at its spillway and at its sluice outlets. The retarding basin is the one with uncontrolled and ungated outlets. The cost of gate installation is saved and there are no gates hence, the possibility of human error and negligence in their operation is eliminated.

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