Top 150+ Solved Irrigation Engineering MCQ Questions Answer
Q. The unit hydrograph due to a storm may be obtained by dividing the ordinates of the directrunoff hydrograph by
a. direct runoff volume
b. period of storm
c. total rainfall
d. none of the above
Q. The unit hydrograph of a specified duration can be used to evaluate the hydrograph ofstorms of
a. same duration only
b. same and shorter duration
c. same and longer duration
d. any duration
Q. S-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
Q. The relation between probability (P) and recurrence interval (T) is given by
a. PT = 1
b. PT2 = 1
c. P/T = 1
d. P/T2 = 1
Q. If d is the depth of the aquifer through which water is flowing, then the relationshipbetween permeability k and transmissible T is given by
a. T = kd
b. T = k/d
c. T= Vkd
d. k= VTd
Q. 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
Q. 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)
Q. 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
Q. The useful storage is the volume of water stored in the reservoir between
a. minimum pool level and maximum pool level
b. minimum pool level and normal pool level
c. normal pool level and maximum pool level
d. river bed and minimum pool level
Q. The water stored in the reservoir below the minimum pool level is called
a. useful storage
b. dead storage
c. valley storage
d. surcharge storage
Q. For a flood control reservoir, the effective storage is equal to
a. useful storage - valley storage
b. useful storage + surcharge storage
c. useful storage + surcharge storage + valley storage
d. useful storage + surcharge storage -valley storage
Q. Trap efficiency of a reservoir is a function of
a. capacity/inflow ratio
b. capacity/outflow ratio
c. outflow/inflow ratio
d. none of the above
Q. The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after
a. 50 years
b. 150 years
c. 200 years
d. 250 years
Q. The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, arei) Water pressureii) Self weightiii) Upliftiv) Pressure due to earthquakeThe correct answer is
a. Only (ii)
b. (i), (ii) and (iii)
c. (i), (ii) and (iv)
d. (i), (ii), (iii) and (iv)