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Civil Engineering - Irrigation

Exercise : Irrigation - Section 3
6.
If D1 and D2 are depths of water upstream and down stream of a hydraulic jump, the loss of head at the jump, is
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
If Dc is the critical depth, D is the depth of water down stream and HL is the total head loss at the cistern of a vertical fall, the depth x of the cistern below the bed level down stream suggested by Blench, is
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The uplift pressure on the roof of an inverted syphon, is maximum when
drain in running dry
canal is running dry
canal is running with F.S.L.
drain is running with H.F.L.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
In rigid module, the discharge
is independent of water levels in the distributary and water course
depends upon the water level in distributary
depends upon the water level in the water course
depends upon the water levels of both, i.e. distributary and water course
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The ratio of the rate of change of discharge of an outlet and parent channel, is known as
efficiency
sensitivity
flexibility
modular limit.
Answer: Option
Explanation:
Flexibility: It provides a criteria for judging the behaviour of modules and semi-modules. It is generally denoted by letter 'F'. It is the ratio of the rate of change of outlet discharge to the rate of change of discharge of the parent channel.
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