Water Resources Engineering(Environment Management ) Questions and Answers
Question 1. If a gauge is installed perpendicular to the slope, its measurement is reduced by multiplying
sine of the angle of inclination with vertical
cosine of the angle of inclination with vertical
tangent of the angle of inclination with vertical
calibration coefficient of the gauge.
Explanation:-
Answer: Option B. -> cosine of the angle of inclination with vertical
Question 2. While calculating the average depth of annual precipitation in a catchment basin, importance to individual raingauge station is given in
Arithmetical method
Thiessen's mean method
Isohyetal method
both (b) and (c).
Explanation:-
Answer: Option D. -> both (b) and (c).
Question 3. If s is the potential infiltration, P is rainfall in cm in a drainage of a soil with fair pasture cover, the direct run off Q in cm is given by
Q = (P - 0.1 S)²/(P + 0.4 S)
Q = (P - 0.2 S)²/(P + 0.6 S)
Q = (P - 0.2 S)²/(P + 0.8 S)
Q = (P - 0.2 S)²/(P + 0.2 S)
Explanation:-
Answer: Option C. -> Q = (P - 0.2 S)²/(P + 0.8 S)
Question 4. The critical depth in a channel can be produced
by raising the bottom of the channel
by lowering the bottom of the channel
by decreasing the width of the channel
both (a) and (c) of above.
Explanation:-
Answer: Option D. -> both (a) and (c) of above.
Question 5. A hydraulic jump in a control meter will be formed above the control, if its original
depth is more than critical depth
depth is less than the critical depth
depth is equal to critical depth
none of these.
Explanation:-
Answer: Option B. -> depth is less than the critical depth
Question 6. Prof
Logarithmic method
y method
General method
None of these.
Explanation:-
Answer: Option A. -> Logarithmic method
Question 7. If y is the depth of water at any section, then the mean velocity is
0.2 y
0.3 y
0.5 y
0.6 y.
Explanation:-
Answer: Option D. -> 0.6 y.
Question 8. From the Survey of India map, the distance of the critical point is 20 km and difference in elevation is 193 m
3 hours
2 hours and 30 minutes
3 hours and 30 minutes
4 hours.
Explanation:-
Answer: Option D. -> 4 hours.
Question 9. The initial basin recharge is equal to
interception
depression storage
rain absorbed by the moisture deficiency
all the above.
Explanation:-
Answer: Option D. -> all the above.
Question 10. For computing the run off volumes of large areas, number of infiltrations used are
