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Irrigation Engineering

Irrigation Engineering
In a chute spillway, the flow is usually

super critical
critical
subcritical
uniform

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Irrigation Engineering
If D₁ and D₂ are depths of water upstream and downstream of a hydraulic jump, the loss of head at the jump, is

(D₂ - D₁)3/3D₁D₂
(D₂ - D₁)3/2D₁D₂
(D₂ - D₁)3/4D₁D₂
(D₂ - D₁)3/D₁D₂

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Irrigation Engineering
If the R.L’s of canal bed level and high flood level of drainage are 212.0 m and 210.0 m respectively, then cross drainage work will be

syphon aqueduct
superpassage
aqueduct
syphon

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Irrigation Engineering
Instantaneous unit hydrograph is a hydrograph of
i) unit duration
ii) unit rainfall excess
iii) infinitely small duration
iv) infinitely small rainfall excess
The correct answer is

(iii) and (iv)
(ii) and (iii)
(i)and(iv)
(i) and (ii)

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Irrigation Engineering
A unit hydro graph has one unit of

time base of direct runoff
rainfall duration
discharge
rainfall excess

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

Vertical drop-fall
Glacis fall
Montague type fall
Inglis fall

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