Questions and answers for exam Preparation

MCQs

Total Questions : 190 | Page 9 of 19 pages

Question 81. The valley storage reduces the effective storage capacity of a reservoir.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 82. Which of the following formula can be used to determine the storage when three consecutive sections at equal height are taken?

Prismoidal formula
Trapezoidal method
Average formula
Integration method

Discuss Question

Answer: Option A. -> Prismoidal formula
Answer: (a).Prismoidal formula

Question 83. The maximum level to which the water rises during the worst design flood is known as _________________________

full Reservoir level
maximum conservation level
minimum pool level
surcharge storage

Discuss Question

Answer: Option A. -> full Reservoir level
Answer: (a).full Reservoir level

Question 84. Average yield of a storage reservoir is the arithmetic average of its ________________

firm yields over a long period
secondary yields over a long period
firm and secondary yields over a long period
reservoir yield over a long period

Discuss Question

Answer: Option C. -> firm and secondary yields over a long period
Answer: (c).firm and secondary yields over a long period

Question 85. While planning a water supply reservoir as compared to an irrigation reservoir the design yield may be kept __________________

higher
lower
equal
lower or higher as per designers discretion

Discuss Question

Answer: Option B. -> lower
Answer: (b).lower

Question 86. The reservoir capacity cannot exceed the catchment yield.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 87. The capacity-inflow ratio for a reservoir _________________

is a constant factor overtime
increases with time
decreases with time
may increase or decrease with time

Discuss Question

Answer: Option C. -> decreases with time
Answer: (c).decreases with time

Question 88. Trap efficiency of a storage reservoir is defined as the ratio of ___________________

total annual sediment inflow to the reservoir capacity
total sediment deposited in a given period to the total sediment inflow in that period
total annual sediment deposited in the reservoir to the dead storage capacity of the reservoir
reservoir capacity to the total annual sediment

Discuss Question

Answer: Option B. -> total sediment deposited in a given period to the total sediment inflow in that period
Answer: (b).total sediment deposited in a given period to the total sediment inflow in that period

Question 89. Capacity inflow ratio for a storage reservoir is defined as the ratio of _______________________

reservoir capacity to the average annual flood inflow
reservoir capacity to the average annual sediment inflow
the dead storage capacity of the reservoir to the average annual sediment deposited
total annual sediment inflow to the reservoir capacity

Discuss Question

Answer: Option A. -> reservoir capacity to the average annual flood inflow
Answer: (a).reservoir capacity to the average annual flood inflow

Question 90. With the reduction in reservoir capacity over the passage of time, the trap efficiency ___________