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CG Vyapam_CE Hydrology & Irrigation Quiz-2
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Question 1
Infiltration capacity of soil depends upon
Question 2
Calculate the runoff (cm) from a rainfall of 3 hours. The intensity of the rainfall is 2 cm/hr. The evaporation and infiltration losses are 8 mm and 16 mm respectively.
Question 3
The surface run-off is due to
Question 4
Infiltration rate is always
Question 5
A 3 hr storm on a small discharge basin produce rainfall intensities of 4.0 cm/hr, 4.2 cm/hr and 3.4cm/hr in successive hours. If the surface runoff due to storm is 3.5 cm, the value of ϕindex will be
Question 6
The rainfall during three successive 2 hour periods are 0.5, 2.8 and 1.6 cm. The surface runoff resulting from this storm is 3.2 cm. The 
index value of this storm is
Question 7
A storm with 10 cm precipitation produced a direct runoff of 5 cm. Calculate the Φ-index if the rainfall intensity distribution is as follows:
Question 8
A 4 h storm had 4 cm of rainfall and the resulting direct run off was 2.0 cm. If the Φ index remains at the same value, the run off due to 10 cm of rainfall in 8 h in the catchment is:
Question 9
If the initial infiltration capacity was 10 mm/hr and ultimate capacity was 1.2 mm/hr. The total of 33 mm of water infiltrated during 10 h interval. Find infiltration constant rate. ( Assume steady state is attained)
Question 10
A 6 hours storm had 6 cm of rainfall and the resulting direct runoff was 3 cm. If the Φ-index remains at the same value, direct runoff due to 20 cm of rainfall in 12 hours in the catchment is
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