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Irrigation Engineering

Irrigation Engineering
The net speed under which the turbine reaches its peak efficiency is called

design speed
gross speed
operating speed
rated speed

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Irrigation Engineering
Borrow pits should preferably be located in

Field on the left side of the canal
Fields on both sides of the canal
Field on the right side of the canal
Central half width of the section of the canal

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Irrigation Engineering
Presence of tail water in a gravity dam
i) increases the principal stress
ii) decreases the principal stress
iii) increases the shear stress
iv) decreases the shear stress
The correct answer is

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

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Irrigation Engineering
The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is

1.074
1.084
1.054
1.064

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Irrigation Engineering
Which of the following can be used as a meter fall ?

flumed glacis fall
All of these
unflumed glacis fall
vertical drop fall

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Irrigation Engineering
Lacey's equation for calculating flood discharge in rivers, is

V = 10.8 R2/3 S1/3
V = 10.8 R2/3 S1/2
V = 10.8 R1/3 S2/3
V = 10.8 R1/2 S1/2

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