Water Resources Engineering and Hydrology (3160610) MCQs

MCQs of Introduction

Showing 31 to 40 out of 44 Questions
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31.

Potential evapo-transpiration is

(a)

evaporation alongwith transpiration when there is sufficient moisture available to a fully vegetated area.
(b)

the evapotranspiration of a forest area.
(c)

actual evapotranspiration of a crop before application of irrigation water.
(d)

amount of water needed to bring the moisture content of a soil to its field capacity.
Answer:

Option (a)

32.

Which of the following is a non-recording raingauge?

(a)

Tipping bucket type raingauge
(b)

Symon’s raingauge
(c)

Steven’s weighing type raingauge
(d)

Syphon type rainguage
Answer:

Option (b)

33.

The area between the isohytes 38 cm and 42 cm is 50 km2 and between 42 cm and 46cm is 50 km2. The average depth of annual precipitation over the basin of 100 km2 will be ______________ cm.

(a)

42
(b)

40
(c)

38
(d)

39
Answer:

Option (a)

34.

According to Dalton’s law, under given conditions, the evaporation is proportional to

(a)

the vapour pressure deficit at the surface of the water body at water temperature.
(b)

the difference between saturation vapour pressure at 100°C and the actual vapour pressure.
(c)

the difference between the actual vapour pressure and the saturation vapour pressure at 0°C.
(d)

none of these
Answer:

Option (a)

35.

Precipitation station X was not operational for part of a month during which a storm occurred. The respective storm totals at three surrounding stations A, B, C were 100, 90 and 110 mm. The normal annual precipitation amounts of stations X, A, B and C are respectively 1000, 1100, 900 and 1200 mm. Then the storm precipitation for station X will be

(a)

92.80 mm
(b)

94.20 mm
(c)

96.50 mm
(d)

99.00 mm
Answer:

Option (b)

36.

The flow-duration curve is a plot of

(a)

accumulated flow against time
(b)

discharge against time in chronological order
(c)

the base flow against the percentage of times the flow is exceeded
(d)

the stream discharge against the percentage of times the flow is equalled or exceeded
Answer:

Option (d)

37.

Absolute humidity in air

(a)

decreases at higher altitudes
(b)

increases at higher altitudes
(c)

remains constant at all altitudes
(d)

none of these.
Answer:

Option (a)

38.

Precipitation caused by lifting of an air mass due to the pressure difference, is called

(a)

cyclonic precipitation
(b)

convective precipitation
(c)

orographic precipitation
(d)

none of these.
Answer:

Option (a)

39.

The standard height of a standard rain gauge, is

(a)

10 cm
(b)

20 cm
(c)

30 cm
(d)

50 cm
Answer:

Option (c)

40.

In India, rain fall is generally recorded at
(a)

8 A.M.
(b)

12 Noon
(c)

4 P.M.
(d)

8 P.M.
Answer:

Option (a)

Showing 31 to 40 out of 44 Questions
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