water management MCQs – Page 5

Practise focused water management questions with marked answers for exam preparation and subject revision.

water management Mcqs
81. The ratio of specific weight of any liquid to the specific weight of water is called as _________________?
comments icon0

A. Density of water

B. Density of liquid

C. Specific gravity of water

D. Specific gravity of liquid
82. Water storage efficiency in the root zone depends upon__________________?
comments icon0

A. Fine particles of soil

B. Climatic conditions

C. Coarse particles of soil

D. Porosity
83. The discharge over a rectangular notch is determined by _____________________?
comments icon0
A. 2/3 cd. B (2g) 1/2 H3/2

B. 2/3 cd. b (2 gh) 1/2

C. 2/3 cd. b (2g) 1/2 H 5/2

D. 2/3 cd. B (2g) 1/2 H

84. The falling drop of rainwater become spherical due to _________________?
comments icon0

A. Capillary

B. Compressibility

C. Surface Tension

D. None of these

85. From a water fall, if water is falling down at the rate of 100 N/sec: on the blades of a turbine when the height of fall is 100 m the power delivered to turbine will be______________?
comments icon0

A. 100 kw

B. 10,000 kw

C. 1000 kw

D. 5000 kw

86. A channel is said lo be of most economical cross section, for a given cross-sectional area and bed slope when it __________________?
comments icon0
A. All of these

B. Involves lesser excavation

C. Has minimum wetted perimeter

D. Gives max. Discharge

87. An instrument used for measuring pressure head, generally made up of a small pipe tapped into the side of conduit is called ___________________?
comments icon0
A. Piezometer

B. Manometer

C. Pilot tube

D. All are correct

88. hail is precipitation in the form of balls or lumps of ice of size greater than _______________ formed by alternate freezing & melting?
comments icon0

A. 15 mm diameter

B. 10 mm diameter

C. 20 mm diameter

D. 5 mm diameter
89. To dispose of the surplus water from dam, a water way is constructed called________________?
comments icon0

A. Channel

B. All are correct

C. Spillway

D. Water escape

90. For a perfect incompressible liquid flowing in a continuous stream, the total energy of a particle remain the same, while the liquid particle move from one point to another this statement is called ___________________?
comments icon0

A. Pascal s law

B. Bernoulli equation

C. Continuity Equation

D. Archimedes principle

91. The water in swimming pools can be ____________ by using any one from the following, chlorine-ultraviolet rays and bromine t ?
comments icon0

A. Cleaned

B. Disinfected

C. Infected

D. Iodized

92. The structures, which are constructed on the river bed upstream of head regulator. With this clear water enters in canal such structures are called______________________?
comments icon0

A. Silt ejectors

B. Silt excluders

C. Vortex pipes

D. Silt control structures

93. The centre of pressure of a plane submerged area which holds it in equilibrium is ____________________?
comments icon0

A. Always below the centre of gravity of the area

B. Coincident with centroid of area if its plane is vertical

C. Independent of the inclination of area

D. Always above the centroid of the area
94. The force with which the particles of same body are held together is called_______________?
comments icon0

A. Surface tension

B. Cohesion

C. All are correct

D. Adhesion

95. The percentage of the volume of water filled in voids to the total volume of solids of soil grains is called__________________?
comments icon0
A. Degree of saturation

B. Degree of compaction

C. Volume of saturation

D. Void ratio

96. The line in a flow net which shows the direction of flow of water through a soil mass beneath dam are called _________________?
comments icon0

A. Section lines

B. Equipotential lines

C. Streak lines

D. flow lines
97. When seepage water after passing the ground water aquifer joins the surface stream, such stream will be called_____________________?
comments icon0

A. Storm stream

B. Effluent stream

C. Influent stream

D. Rain stream

98. The mass per unit volume of a liquid at standard temperature and pressure is called ____________________?
comments icon0

A. None of these

B. Mass density

C. Specific weight

D. Specific gravity

99. Mostly the salt of calcium and Magnesium can not cause ________________?
comments icon0
A. Poisoning

B. Salinity

C. Alkalinity

D. Turbidity

100. Aeration holes are provided to reduce the inside saturation pressure ____________________?
comments icon0

A. In a cippoletti weir

B. In a suppressed weir

C. In all weir

D. In a weir with end contractions