31. A current meter is used to measure the
a) velocity of flow of water
b) depth of flow of water
c) discharge
d) none of the above
Ans: a
32. 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) 15 minutes
b) 20 minutes
c) 30 minutes
d) 60 minutes
Ans: d
33. 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) 60 mm
c) 90 mm
d) 140 mm
Ans: c
34. 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) 80mm
c) 90 mm
d) 105 mm
Ans: a
35. The best unit duration of storm for a unit hydrograph is
a) 1 hour
b) one-fourth of basin lag
c) one-half of basin lag
d) equal to basin lag
Ans: b
36. The unit hydrograph due to a storm may be obtained by dividing the ordinates of the direct runoff hydrograph by
a) direct runoff volume
b) period of storm
c) total rainfall
d) none of the above
Ans: a
37. The unit hydrograph of a specified duration can be used to evaluate the hydrograph of storms of
a) same duration only
b) same and shorter duration
c) same and longer duration
d) any duration
Ans: d
38. S-hydrograph is used to obtain unit hydrograph of
a) shorter duration from longer duration
b) longer duration from shorter duration
c) both (a) and (b)
d) none of the above
Ans: c
39. The relation between probability (P) and recurrence interval (T) is given by
a) PT = 1
b) PT2 = 1
c) P/T = 1
d) P/T2 = 1
Ans: a
40. Dimensions of coefficient of transmissibility are
a) M°L°T°
b) rvfL'T"1
c) M° L2 T1
d) M'LV
Ans: c
More Irrigation water resources engineering Questions & Answers:-
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a) velocity of flow of water
b) depth of flow of water
c) discharge
d) none of the above
Ans: a
32. 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) 15 minutes
b) 20 minutes
c) 30 minutes
d) 60 minutes
Ans: d
33. 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) 60 mm
c) 90 mm
d) 140 mm
Ans: c
34. 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) 80mm
c) 90 mm
d) 105 mm
Ans: a
35. The best unit duration of storm for a unit hydrograph is
a) 1 hour
b) one-fourth of basin lag
c) one-half of basin lag
d) equal to basin lag
Ans: b
36. The unit hydrograph due to a storm may be obtained by dividing the ordinates of the direct runoff hydrograph by
a) direct runoff volume
b) period of storm
c) total rainfall
d) none of the above
Ans: a
37. The unit hydrograph of a specified duration can be used to evaluate the hydrograph of storms of
a) same duration only
b) same and shorter duration
c) same and longer duration
d) any duration
Ans: d
38. S-hydrograph is used to obtain unit hydrograph of
a) shorter duration from longer duration
b) longer duration from shorter duration
c) both (a) and (b)
d) none of the above
Ans: c
39. The relation between probability (P) and recurrence interval (T) is given by
a) PT = 1
b) PT2 = 1
c) P/T = 1
d) P/T2 = 1
Ans: a
40. Dimensions of coefficient of transmissibility are
a) M°L°T°
b) rvfL'T"1
c) M° L2 T1
d) M'LV
Ans: c
More Irrigation water resources engineering Questions & Answers:-
Part1 Part2 Part3 Part4 Part5 Part6 Part7 Part8 Part9 Part10
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