water management MCQs – Page 6

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

water management Mcqs

101. The quantity of water lost by transpiration from the plants or crops and evaporation from fields adjacent to these plants is called ___________________?
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A. Evapo-transpiration

B. Consumptive use

C. a & b are correct

D. Un-confined water

102. Net irrigation + field irrigation losses are the requirement of _____________________?
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A. Full irrigation

B. Furrow irrigation

C. Field irrigation

D. Basin irrigation

103. When the weight of weir balances the up lift pressure caused by the head of the water seeping below the weir bed is called ___________________?
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A. Non-gravity weir

B. Gravity weir

C. Broad crested weir

D. Cippollite weir

104. To keep the Hydraulic structure safe against undermining the ________________ should be safe?
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A. Creep length

B. Hydraulic gradient

C. Exit gradient

D. Critical exit gradient

105. An impermeable Formation which neither contains water nor transmits water may be called_____________________?
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A. Confined-aquifer

B. Aquifuge

C. Aquiclude

D. Aquifer

106. That point in a body at which it will balance if loaded or supported is called ____________________?
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A. Centre of pressure

B. Centre of mass

C. Mass centre

D. Centre of gravity

107. The floods which exceeds the designed magnitude of a reservoir is called _______________________?
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A. Storm flood

B. High floods

C. Standard protects flood

D. Intensive flood

108. The total dissolved solids in drinking water should not exceed_________________?
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A. 1200 mg/litre

B. 1300 mg/litre

C. 1000 mg/litre

D. 1500 mg/litre

109. If E1 is the energy before the hydraulic jump and E2 is the energy after the hydraulic jump the efficiency of jump is then given by _____________________?
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A. E1 / E2

B. E2 / E1

C. E2 E1

D. E1 E2

110. Onion is a ___________ rooted crop?
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A. Deep

B. Non-rooted

C. Shallow

D. Spread

111. The water way from a weir is determined by using Laceys wetted perimeter i.e. P=_______(Q)1/2 ?
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A. 5.75

B. 4.75

C. 3.5

D. 3.75

112. An open cut given in a canal bank, suitably protected by stone pitching to the upland drainage water into the canal is called ___________________?
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A. Out let

B. entrance

C. Mixing

D. Inlet

113. If the duration of a unit hydrograph approaches zero, the resulting unit hydrograph is called __________________?
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A. Instantaneous unit hydrograph

B. Unit hyetgoraph

C. Intensity unit hydrograph

D. Unit hydrograph

114. When FSL of the canal is sufficiently above the bed level of drainage so that canal flows under syphonis action, the structure is called _____________________?
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A. Aqueduct

B. Canal-syphon

C. Syphon Aqueduct

D. Super passage

115. The process to dilute the available salts from root Zone by providing simply canal water is known as __________________?
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A. de-salting

B. Leaching

C. Recultivation

D. Reclamation

116. The unit of volume of water used in irrigation practice in FPS system is Acre-Foot. there fore one Acre- Foot is equal to ___________________?
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A. 43560 cubic feet

B. 40560ft3

C. 42560ft3

D. 41560ft3

117. A module or outlet in which discharge is fixed and limited, irrespective fluctuations in water levels in distributary is called _________________?
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A. Non-modular

B. Semi-modular

C. Modular

D. Semi Rigid

118. The season that starts from 1st April and end on 30th September and run for 183 days is called _____________________?
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A. Rice season

B. Rabi season

C. Kharif season

D. Cotton season

119. The counter berm for a canal is provided so as to contain the saturation gradient line _____________ the bank?
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A. Out of

B. Within

C. Below

D. Above

120. _________% of total global water is fresh and its major portion is obtained from Rains ?
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A. 2.5%

B. 3.20%

C. 2%

D. 3%

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