Water Resources Engineering MCQs
Water Resources Engineering MCQs
Answer these 20 Water Resources Engineering MCQs and assess your grip on the subject of Water Resources Engineering.
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1: The main factor which affects the infiltration capacity, is
A. Thickness of saturated layer
B. Depth of surface detention
C. Soil moisture
D. All these
2: Hydrology helps in
A. Forecasting the availability of quantity of water at reservoir site
B. Predicting maximum flows
C. Predicting the effects on the river water level on completion of dams
D. All these
E. Deciding the minimum reservoir capacity
3: The deficiency in rain catch due to vertical acceleration of air forced upward over the gauge, is
A. Lesser for small rain drops.
B. Greater for large drops
C. Greater for heavy rain
D. Greater for lighter rain
4: The theory of infiltration capacity was given by
A. Merrill Bernard
B. Le-Roy K. Shermen
C. Robert E. Horten.
D. W.W. Horner
5: Pick up the correct statement from the following:
A. All these
B. When rainfall exceeds the interception rainfall, water reaches the ground and infiltration starts
C. The maximum rate of absorbing water by the soil in any given condition, is known as infiltration capacity
D. Rain which is intercepted by buildings, vegetations and other objects, is generally known as rainfall interception
E. The difference between the total rainfall and intercepted rainfall, is generally called ground rainfall
6: In India the recording type rain gauge generally used, is
A. Weighing type
B. None of these.
C. Tipping type
D. Float recording type
7: Consumptive use of a crop during growth, is the amount of
A. Interception
B. Transpiration
C. Evaporation
D. All these
8: Pick the correct statement from the following:
A. Perched aquifer is formed in unfined accquifer if an impervious layer exists
B. Perched aquifer is found in unconfined aquifer
C. All these
D. The top surface of the water held in the perched aquifer, is known as perched water table
9: The run off a drainage basin is
A. Precipitation + ground water accretion + initial recharge
B. Precipitation - ground water accretion + initial recharge
C. Initial recharge + ground water accretion + precipitation
D. Precipitation - ground water accretion - initial recharge.
10: For the estimate of high floods in fan-shaped catchment, the formula used is
A. Inglis formula
B. Ryve's formula
C. Dicken's formula
D. None of these.
11: For computing the run off volumes of large areas, number of infiltrations used are
A. 2
B. 4
C. 5
D. 3
12: Unit Hydrograph theory was enunciated by
A. Merril Bernard
B. W.W. Horner
C. Robert E. Horten.
D. Le-Roy K. Shermen
13: While calculating the average depth of annual precipitation in a catchment basin, importance to individual raingauge station is given in
A. Both Arithmetical method and Thiessen's mean method
B. Thiessen's mean method
C. Arithmetical method
D. Both Thiessen's mean method and Isohyetal method.
E. Isohyetal method
14: If y is the depth of water at any section, then the mean velocity is
A. 0.2 y
B. 0.6 y.
C. 0.5 y
D. 0.3 y
E. 0.1 y
15: The Hydrology helps in
A. Deciding the minimum reservoir capacity
B. Predicting maximum flows
C. All these
D. Forecasting the availability of quantity of water at reservoir site
E. Predicting the effects on the river water level on completion of dams
16: Infiltration capacity of soil depends upon
A. Number of voids present in the soil
B. Shape and size of soil particles
C. All these
D. Compaction of the soil particles
E. Arrangement of soil particles
17: The run off is affected by
A. Type of precipitation
B. Rain distribution and soil moisture deficiency
C. Direction of prevailing storm
D. Rain intensity and duration of rainfall
18: If the area of storm hydrograph is equal to 102 cm, the ordinates of a unit hydrograph may be obtained by dividing the ordinates of the storm hydrograph by
A. 0.5
B. 2
C. 3
D. 4
E. 1
19: The initial basin recharge is equal to
A. Depression storage
B. Rain absorbed by the moisture deficiency
C. Interception
D. All these
20: A recording type rain gauge
A. Produces a mass curve of rain fall
B. Records the cumulative rain
C. Is sometimes called integrating rain gauge or continuous rain gauge
D. All these
21: In a municipal wastewater treatment plant, the primary treatment step includes ________.
A. Letting sewage sit in large settling tanks so suspended solids can settle out
B. Most of this is far from where humans live
C. Groundwater
D. All of these
22: The transport of a water column up a very tall tree can be explained by _____.
A. Root pressure that pushes water up
B. Cohesive and adhesive forces of the water column under evaporative tension
C. Positive pressure in xylem that pushes water up
D. Gravitational pull
23: About _____ molecules in a glass of water are dissociated
A. -1 in 500,000,000
B. -1 in 1,000,000,000
C. -1 in 1,000,000
D. -1 in 5,000,000
E. -1 in
24: Sinkholes can occur when ________.
A. Increased water consumption through development and urbanization
B. Subsidence
C. Generate electricity, prevent flooding and provide irrigation
D. Excessive water use lowers a water table and weakens the substrate
25: Sinkholes can result from ________.
A. Overconsumption of water from aquifers
B. Flood damage and chemical erosion
C. Building on floodplains
D. Poorly drilled wells in soft soils
26: A(n) ________ forms when a stream has been beheaded by stream capture.
A. Waterfall.
B. Elbow.
C. Floodplain.
D. Trellis drainage pattern.
E. Knickpoint.
27: The damage caused by hurricane katrina took the form of _______.
A. Oil spills and building damage
B. Flooding and mold infestations
C. Toxic chemicals and sewage
D. All of the above
28: A(n) ________ forms when a stream has been beheaded by stream capture.
A. Waterfall.
B. Elbow.
C. Floodplain.
D. Trellis drainage pattern.
E. Knickpoint.
29: The damage caused by hurricane katrina took the form of _______.
A. Oil spills and building damage
B. Flooding and mold infestations
C. Toxic chemicals and sewage
D. All of the above
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