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Irrigation Quiz | Irrigation Multiple Choice Questions with Answers

Questions
61 Hydrograph is the graphical representation of
A runoff and time
B surface runoff and time
C ground waterflow and time
D rainfall and time

Answer: runoff and time
62 For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for a capacity equal to the greater of the water requirement of
A rabi and sugarcane or kharif and sugarcane
B rabi or kharif or sugarcane
C rabi or kharif
D rabi and kharif or sugarcane

Answer: rabi and sugarcane or kharif and sugarcane
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63 The “outlet discharge factor” is the duty at the head of
A watercourse
B main canal
C branch canal
D distributory

Answer: watercourse
64 The duty is largest
A at the head of water course
B on the field
C at the head of a main canal
D same at all places

Answer: on the field
65 The value of Sodium Absorption Ratio for high sodium water lies between
A 18 to 26
B 10 to 18
C 0 to 10
D 26 to 34

Answer: 18 to 26
66 Fertigation is a process in ___________ irrigation.
A Drip
B Centre pivot
C Sprinkler
D Surface

Answer: Drip
67 The field water efficiency of trickle irrigation is:
A 80-90%
B 60-70%
C 50-55%
D 55-85%

Answer: 80-90%
68 The normal annual precipitation at stations X, A, B and C are 700 mm, 1000 mm, 900 mm and 800 mm respectively. If the storm precipitation at three station A, B and C were 100 mm, 90 mm and 80 mm respectively, then the storm precipitation for station X will be
A 70mm
B 105 mm
C 80mm
D none of the above

Answer: 70mm
69 The rainfall on five successive days were measured as 100 mm, 80 mm, 60 mm, 40 mm and 20 mm respectively. If the infiltration index or the storm loss rate for the catchment area is earlier estimated as 50 mm/day, the total surface run off will be
A 50 mm
B 90 mm
C 60 mm
D 140 mm

Answer: 90 mm
70 If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be
A 60 minutes
B 30 minutes
C 15 minutes
D none of the above

Answer: 60 minutes

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