1902. The maximum average depth due to one day storm over an area of 100 km2 is 100 mm. Depth-Area-Duration (DAD. curves indicate that for the same area of 100 km2 the maximum average depth for a 3 hour storm will be__________________?

A. 100 mm
B. more than 100 mm
C. less than 100 mm
D. none of the above
βœ… The correct answer is option B.

1904. Hydrodynamic pressure due to earthquake acts at a height of_________________?

A. 3H/47I above the base
B. 3H747t below the water surface
C. 4H/371 above the base
D. 4H737t below the water surface where H is the depth of water
βœ… The correct answer is option C.

1905. The ratio of rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called________________?

A. proportionality
B. flexibility
C. setting
D. sensitivity
βœ… The correct answer is option B.

1907. The uplift pressure on the face of a drainage gallery in a dam is taken as_________________?

A. hydrostatic pressure at toe
B. average of hydrostatic pressure at toe and heel
C. two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel
D. none of the above
βœ… The correct answer is option C.

1910. As per Lacey’s theory, the silt factor is_________________?

A. directly proportional to average par¬ticle size
B. inversely proportional to average par¬ticle size
C. directly proportional to square root of average particle size
D. not related to average particle size
βœ… The correct answer is option C.