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Free download in PDF Irrigation Short Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
41
A multipurpose reservoir is the one which is
[A]
designed for one purpose but serves more than one purpose
[B]
planned and constructed to serve various purposes
[C]
both (a) and (b)
[D]
none of the above
Answer: planned and constructed to serve various purposes
42
A deep well
[A]
is always deeper than a shallow well
[B]
has more discharge than a shallow well
[C]
is weaker structurally than a shallow well
[D]
both (a) and (b)
Answer: has more discharge than a shallow well
43
An artesian aquifer is the one where
[A]
water surface under the ground is at atmospheric pressure
[B]
water is under pressure between two impervious strata
[C]
water table serves as upper surface of zone of saturation
[D]
none of the above
Answer: water is under pressure between two impervious strata
44
If d is the depth of the aquifer through which water is flowing, then the relationship between permeability k and transmissible T is given by
[A]
T = kd
[B]
k= VTd
[C]
T= Vkd
[D]
T = k/d
45
Dimensions of coefficient of transmissibility are
[A]
M°L°T°
[B]
rvfL’T”1
[C]
M° L2 T1
[D]
M’LV
46
-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
47
The unit hydrograph of a specified duration can be used to evaluate the hydrograph of storms of
[A]
same and longer duration
[B]
any duration
[C]
same duration only
[D]
same and shorter duration
48
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]
total rainfall
[C]
period of storm
[D]
none of the above
Answer: direct runoff volume
49
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
Answer: one-fourth of basin lag
50
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
Answer: velocity of flow of water
51
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
Answer: increase in intensity of rain
52
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
Answer: much more than evapotranspiration
53
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
Answer: convex water surface
54
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
Answer: rain deficiency of 30%
55
Which of the following types of rain gauges is used for measuring rain in remote hilly inaccessible areas ?
[A]
floating type
[B]
tipping bucket type
[C]
weighing type
[D]
Simon’s raingauge
Answer: tipping bucket type
56
Which of the following is a non-recording raingauge ?
[A]
tipping bucket type raingauge
[B]
Simon’s raingauge
[C]
Steven’s weighing type raingauge
[D]
floating type raingauge
Answer: Simon’s raingauge
57
Infiltration is the
[A]
movement of water through the soil
[B]
absorption of water by soil surface
[C]
both (a) and (b)
[D]
none of the above
Answer: movement of water through the soil
58
Infiltration capacity
[A]
changes with both time and location
[B]
changes with location
[C]
changes with time
[D]
is a constant factor
Answer: changes with both time and location
59
The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called
[A]
soil moisture deficiency
[B]
pellicular water
[C]
hygroscopic water
[D]
equivalent moisture
Answer: soil moisture deficiency
60
Infiltration rate is always
[A]
equal to or less than the infiltration capacity
[B]
equal to or more than the infiltration capacity
[C]
more than the infiltration capacity
[D]
less than the infiltration capacity
Answer: equal to or less than the infiltration capacity
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