water management MCQs – Page 7

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

water management Mcqs
121. At the end of hydraulic structure, the upward force of sub-soil water just becomes equal to the submerged weight of soil grains Then exit gradient will be called______________?
comments icon0
A. Critical exit gradient

B. Balanced exit gradient

C. Submerged exit gradient

D. All are correct

122. The force with which the distinct bodies held together when their surfaces are brought in contact to each other is called _________________?
comments icon0

A. Surface tension

B. Cohesion

C. All are correct

D. Adhesion
123. The value of coefficient of discharge in comparison to cofficient of velocity is found to be ____________________?
comments icon0

A. Zero

B. Equal

C. Lesser

D. More

124. The disposal of sewage by allowing it to flow and Soak into specially leveled farm land for cultivation purpose is called _____________________?
comments icon0

A. Trickle irrigation

B. Check irrigation

C. Border irrigation

D. Broad irrigation
125. When a weir is constructed, the downstream .bed of the river goes on eroding and consequently causes progressive lowering of the bed on downstream of weir called__________________?
comments icon0

A. Ponding on down stream

B. All are correct

C. Retrogression

D. Lowering down of bed

126. For an economical design of gravity dam, the shear friction factor causec compression strength should lie between____________________?
comments icon0

A. 3 to 5

B. 2.5 to 4.5

C. 1.5 to 4.0

D. 2.0 to 4.0

127. To pack with clay material generally for the purpose of checking leakage of water is called __________________?
comments icon0
A. Pug

B. Repair

C. Cohesive

D. Seal

128. Land containing high percentage of alkalies may be reclaimed by addition of_____________________?
comments icon0
A. Caso4

B. Caco3

C. Gypsum

D. Chemicals

129. when ever a sloping face of river bank is protected by stone pitching against scour, the pitching is extended beyond the toe to the river side that is called__________________?
comments icon0

A. Guide bank

B. Launching apron

C. Toe wall

D. Protective wall

130. When the high flood level of the drain is sufficiently below the bed of the Canal that the drainage water flows freely under gravity, such structure is called___________________?
comments icon0

A. Non-gravity structure

B. Aqueduct

C. Cross-Drainage

D. Syphon-aqueduct

131. A structure constructed in channel width having narrow throat and raised floor in bottom, used for measuring discharge is called _____________________?
comments icon0

A. Venturimeter

B. regulator

C. Cippoletti weir

D. Venturiflume
132. In alluvial river due to the action of centrifugal force, bends are developed by scouring on concave and silting on convex _____________________?
comments icon0

A. Aggrading

B. Silting & scouring

C. Meandering

D. Degrading

133. Velocity of flow in a sewer must be form ______________ to ?
comments icon0
A. 1 m / sec to 3m/ sec

B. 4.5 ml sec to 5 m/ sec

C. 4m / sec to 4.5 ml sec

D. 3m / sec to 4m/ sec

134. The ratio between the force causing a body to slide along a plane and the force normal to the plane is called __________________?
comments icon0
A. Coefficient of friction

B. All are correct

C. Coefficient of internal friction

D. Coefficient of resistance

135. The Indus plain is the main agricultural producing region in the country which receives about________________m m of rain fall annually?
comments icon0

A. 200 mm

B. 175 mm

C. 150 mm

D. 100 mm

136. An open cut in the canal bank. with bed and sides to escape canal water through a lead channel to mix water in a nearby drain is called _____________________?
comments icon0
A. Out let

B. Module

C. Inlet

D. Exit

137. The losses of irrigation water due to the seepage but That. does not join the under ground reservoir is called __________________?
comments icon0

A. Percolation losses

B. Absorption losses

C. Seepage losses

D. Evaporation losses

138. For strong Hydraulic jump containing maximum energy, the down stream glacis should be sloped at a slope of ______________ to dissipate max: energy?
comments icon0

A. 2.5:1 to 3:1

B. 2:1 to 2.5:1

C. 3:1 to 5:1

D. 5:1 to 6

139. A water flow available in the drains without irrigation season i.e.flow of sanitary sewage is called____________________?
comments icon0

A. Municipal flow

B. Surface flow

C. Waste water flow

D. Dry weather flow
140. Theoretical velocity of the jet at Vena Contracta is determined by ________________?
comments icon0

A. 2gh

B. 2(gh)1/2

C. 2g (h)1/2

D. (2 gh)1/2