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Irrigation Engineering

Irrigation Engineering
If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is

25 cm
10 cm
15 cm
20 cm

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Irrigation Engineering
The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be

972 hectares/m3/sec
1172 hectares/m3/sec
637 hectares/m3/sec
837 hectares/m3/sec

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Irrigation Engineering
For a unique design of a channel by Kennedy's theory

Its breadth must only be known
Its depth must only be known
Its breadth and depth ratio must only be known
All of these

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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

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

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Irrigation Engineering
A land is said to be water-logged if its soil pores within

Root zone of the crops are saturated
A depth of 40 cm are saturated
A depth of 50 cm are saturated
All listed here

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Irrigation Engineering
Optimum depth of kor watering for rice is

190 mm
215 mm
135 mm
165 mm

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