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Irrigation Engineering

Irrigation Engineering
Interception losses are due to
i) evaporation
ii) transpiration
iii) stream flow
The correct answer is

only (i)
(ii) and (iii)
(i), (ii) and (iii)
(i)and(ii)

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Irrigation Engineering
River training for depth is achieved by

groynes and bandalling
groynes
both (A) and (B)
construction of dykes or leavees

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Irrigation Engineering
When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. doesnot touch the underside of the supporting structure, the structure so provided, is called

Syphon
Aqueduct
Syphon-aqueduct
Super passage

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Irrigation Engineering
The major resisting force in a gravity dam is

self-weight of dam
uplift pressure
wave pressure
water pressure

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Irrigation Engineering
If d1 is the depth of cutting, d2 is the height of the bank from bed level r2 : 1 and r1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is

x = d1 / r1
x = r2 d2
x = r1 d1
x = d2 / r2

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Irrigation Engineering
To determine the discharge at a section in a stream from its rating curve, the required data are
i) slope of water surface at the section
ii) stage at the section
iii) current meter readings at the section
The correct answer is

(ii) and (iii)
only (ii)
only (iii)
(i) and (ii)

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