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Irrigation Engineering

Irrigation Engineering
A straight glacis type fall with a baffle platform and a baffle wall is called

Vertical drop-fall
Inglis fall
Glacis fall
Montague type fall

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Irrigation Engineering
Generally the weir is aligned at right angles to the direction of the main river current because

It is economical
It gives better discharging capacity
All of these
It ensures less length of the weir

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Irrigation Engineering
When the reservoir is full, the maximum compressive force in a gravity dam is produced

at centre of base
at the heel
at the toe
within the middle third of base

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Irrigation Engineering
Seepage through embankments in an earthen dam is controlled by

relief wells
drain trenches
provision of downstream berms
drainage filters

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Irrigation Engineering
A deficit of sediments in flowing water may cause a river

Degrading type
Sub-critical type
Meandering type
Aggrading type

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Irrigation Engineering
The aqueduct or superpassage type of works are generally used when

high flood drainage discharge is large and continues for a long time
high flood drainage discharge is small
high flood drainage discharge is large and short lived
None of these

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