Question

A dam reservoir not provided with gate controls on its spillway and other includes is called

Answer 1

Answer:

Retarding Basin

Explanation:

Answer 2

Answer:

Retarding reservior

Explanation:

There are no gates at the spillways and sluice exits in these reservoirs.

The combined maximum discharging capacity of the sluice and spillway in this instance is, at most, equal to the maximum safe carrying capacity of the channel downstream.

The reservoir first fills up to its regular level as floods occur.

Sluice outlets are now releasing water from the reservoir.

Discharge through sluice channels rises in tandem with rising reservoir level.

Water begins to leak out of reservoirs through ungated spillways at a certain level.

The discharge across spillways likewise climbs when the water level rises further.

The reservoir's inflow and outflow will eventually balance out at a certain point.

Currently, the degree of water in the reservoir will become stable.

This condition happens only when flood inflow in the reservoir is equal to the outflow from the reservoir.

Now when floods occurring recede, inflow in the reservoir will also decrease but the outflow is at the same maximum rate.

Hence flood water which had accumulated in the reservoir will now be slowly flowing out ofthe reservoir.

This reservoir has the following advantages over detention basin.

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