21. A raingauge should preferably be fixed
a) near the building
b) under the tree
c) in an open space
d) in a closed space
Ans: c
22. Which of the following types of rain gauges is used for measuring rain in remote hilly inaccessible areas ?
a) tipping bucket type
b) weighing type
c) floating type
d) Simon's raingauge
Ans: a
23. Rate of evaporation from a water surface increases if
i) difference of vapour pressure between water and air is increased
ii) velocity of wind is decreased
iii) concentration of soluble solids in water is decreased The correct answer is
a) (i) and (ii)
b) (i) and (iii)
c) (ii) and (iii)
d) (i). (ii) and (iii)
Ans: b
24. A 70% index of wetness means
a) rain excess of 30%
b) rain deficiency of 30%
c) rain deficiency of 70%
d) none of the above
Ans: b
25. Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?
a) flat water surface
b) convex water surface
c) concave water surface
d) independent of shape of water surface
Ans: b
26. Assertion A : To estimate the rainfall over a catchment, the number of raingauges required per unit area is large for hilly areas.
Reason R : Rainfall gradient is steep. Select your correct answer according to the coding system given below :
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: a
27. When surface of transpiration is submerged under water, then potential evapotranspiration is
a) much more than evapotranspiration
b) much less than evapotranspiration
c) equal to evapotranspiration
d) equal to or less than evapotranspi-ration
Ans: a
28. Unit of runoff in M.K.S. system is
a) cubic metre/sec
b) metre/sec
c) cubic metre
d) square metre
Ans: a
29. The runoff increases with
a) increase in intensity of rain
b) increase in infiltration capacity
c) increase in permeability of soil
d) all of the above
Ans: a
30. The area between the isohyets 45 cm and 55 cm is 100 square km and between 55 cm and 65 cm is 150 square km. The average depth of annua! precipitation over the above basin of 250 square km will be
a) 50 cm
b) 55 cm
c) 56 cm
d) 60 cm
Ans: c
More Irrigation water resources engineering Questions & Answers:-
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a) near the building
b) under the tree
c) in an open space
d) in a closed space
Ans: c
22. Which of the following types of rain gauges is used for measuring rain in remote hilly inaccessible areas ?
a) tipping bucket type
b) weighing type
c) floating type
d) Simon's raingauge
Ans: a
23. Rate of evaporation from a water surface increases if
i) difference of vapour pressure between water and air is increased
ii) velocity of wind is decreased
iii) concentration of soluble solids in water is decreased The correct answer is
a) (i) and (ii)
b) (i) and (iii)
c) (ii) and (iii)
d) (i). (ii) and (iii)
Ans: b
24. A 70% index of wetness means
a) rain excess of 30%
b) rain deficiency of 30%
c) rain deficiency of 70%
d) none of the above
Ans: b
25. Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?
a) flat water surface
b) convex water surface
c) concave water surface
d) independent of shape of water surface
Ans: b
26. Assertion A : To estimate the rainfall over a catchment, the number of raingauges required per unit area is large for hilly areas.
Reason R : Rainfall gradient is steep. Select your correct answer according to the coding system given below :
a) Both A and R are true and R is the correct explanation of A
b) Both A and R are true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: a
27. When surface of transpiration is submerged under water, then potential evapotranspiration is
a) much more than evapotranspiration
b) much less than evapotranspiration
c) equal to evapotranspiration
d) equal to or less than evapotranspi-ration
Ans: a
28. Unit of runoff in M.K.S. system is
a) cubic metre/sec
b) metre/sec
c) cubic metre
d) square metre
Ans: a
29. The runoff increases with
a) increase in intensity of rain
b) increase in infiltration capacity
c) increase in permeability of soil
d) all of the above
Ans: a
30. The area between the isohyets 45 cm and 55 cm is 100 square km and between 55 cm and 65 cm is 150 square km. The average depth of annua! precipitation over the above basin of 250 square km will be
a) 50 cm
b) 55 cm
c) 56 cm
d) 60 cm
Ans: c
More Irrigation water resources engineering Questions & Answers:-
Part1 Part2 Part3 Part4 Part5 Part6 Part7 Part8 Part9 Part10
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