Hydrology Quiz | Hydrology Objective Type Questions and Answers

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Questions
21 A hydroelectric scheme operating under a head of 80 m will be classified as
A High head scheme
B Medium head scheme
C Low head scheme
D None of the above

Answer: High head scheme
22 Seepage through foundation in an earthen dam is controlled by providing
A Impervious cut off
B Horizontal blanket
C Rock toe
D Chimney drain

Answer: Impervious cut off
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23 Pick up the correct statement from the following:
A Run off and surface run off are the same
B Run off is sometimes called discharge of the river
C Run off includes the water flowing over the surface
D Surface run off is sometimes called stream flow

Answer: Run off is sometimes called discharge of the river
24 Precipitation caused due to upward movement of warmer air as compared to surrounding air, is called
A Convective precipitation
B Cyclonic precipitation
C Orographic precipitation
D None of these

Answer: Convective precipitation
25 Coefficient of discharge of an ogee spillway
A Depends on depth of approach and upstream slope
B Depends on downstream apron interference and downstream submergence
C Remains constant
D Both (A) and (B)

Answer: Both (A) and (B)
26 Absolute humidity in air
A Decreases at higher altitudes
B Increases at higher altitudes
C Remains constant at all altitudes
D None of these

Answer: Decreases at higher altitudes
27 In a chute spillway, the flow is usually
A Super critical
B Critical
C Uniform
D Subcritical

Answer: Super critical
28 Time of overland flow, is affected by
A Length of the flow path
B Slope of the basin
C Type of the ground surface
D All the above

Answer: All the above
29 A runoff river plant
A Is suitable only on a perennial river
B Is a medium head scheme
C Generates power during peak hours only
D Has no pondage at all

Answer: Is suitable only on a perennial river
30 Hydrology helps in
A Forecasting the availability of quantity of water at reservoir site
B Deciding the minimum reservoir capacity
C Predicting maximum flows
D All the above

Answer: All the above
31 Which of the following types of falls use parabolic glacis for energy dissipation?
A Montague type fall
B Glacis fall
C Vertical drop fall
D Inglis fall

Answer: Montague type fall
32 The initial basin recharge is equal to
A Rain absorbed by the moisture deficiency
B Interception
C Depression storage
D All the above

Answer: All the above
33 Shrouding is provided in
A Perforated type tube wells
B Cavity type tube wells
C Slotted type tube wells
D Strainer type tube wells

Answer: Slotted type tube wells
34 Pick up the correct statement from the following:
A The floor of the expanding outlet of the control meter is given a steep slope
B The throat of the section of a control meter is either rectangular or trapezoidal
C The floor of the control meter throat is almost level
D All the above

Answer: All the above
35 The Dupuit formula is based on
A Three observation wells
B One observation well
C Two observation wells
D No observation well

Answer: No observation well
36 A river bend characterized by silting
A Scouring on concave side and silting on convex side
B Scouring on convex side and on concave side
C Scouring on concave side
D Silting on convex side

Answer: Scouring on concave side and silting on convex side
37 Run off includes
A Ground water flow
B Surface run off
C Precipitation over catchment area of the stream and its attributaries
D All the above

Answer: All the above
38 Bernard's distribution graph is a plot of time on X-axis and
A Percentage of total surface run off on y-axis
B Percentage of total surface run off during uniform time intervals on y-axis
C Total run off on the y-axis
D Run off on the y-axis

Answer: Percentage of total surface run off during uniform time intervals on y-axis
39 The rate of evaporation from reservoirs may be determined by
A Storage equation method
B Empirical formulae
C Pan-measurement method
D All the above

Answer: All the above
40 The runoff is affected by
A Rain distribution and soil moisture deficiency
B Rain intensity and duration of rainfall
C Type of precipitation
D All the above

Answer: All the above

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