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Free download in PDF Hydrology Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(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
(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
(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)
(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
(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
(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
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
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
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
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
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
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