civil engineering MCQs – Page 212

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
4221. If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be_____________________?
comments icon0

A. 30 minutes

B. 20 minutes

C. 60 minutes

D. 15 minutes

4222. A river bend characterized by silting_______________?
comments icon0

A. scouring on concave side

B. scouring on concave side and silting on convex side

C. scouring on convex side and on concave side

D. silting on convex side

4223. If there are two canals taking off from each flank of a river, then there will be____________________?
comments icon0

A. two divide walls and one undersluice

B. two divide walls and two undersluices

C. one divide wall and two undersluices

D. one divide wall and one undersluice

4224. For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for a capacity equal to the greater of the water requirement of_______________?
comments icon0

A. rabi or kharif

B. rabi and kharif or sugarcane

C. rabi and sugarcane or kharif and sugarcane

D. rabi or kharif or sugarcane

4225. With the increase in the quantity of water supplied, the yield of most crops_________________?
comments icon0
A. increases upto a certain limit and then decreases

B. increases upto a certain limit and then becomes constant

C. decreases continuously

D. increases continuously

4226. Unit of runoff in M.K.S. system is________________?
comments icon0

A. square metre

B. cubic metre

C. metre/sec

D. cubic metre/sec
4227. In a chute spillway, the flow is usually____________________?
comments icon0

A. uniform

B. super critical

C. critical

D. subcritical

4228. If the R.Ls of canal bed level and high flood level of drainage are 212.0 m and 210.0 m respectively, then cross drainage work will be________________?
comments icon0

A. superpassage

B. syphon

C. aqueduct

D. syphon aqueduct

4229. A runoff river plant is____________?
comments icon0

A. none of the above

B. a high head scheme

C. a low head scheme

D. a medium head scheme

4230. In a Sarda type fall, rectangular crest is used for discharge upto______________?
comments icon0
A. 14 cumecs

B. 6 cumecs

C. 10 cumecs

D. 20 cumecs

4231. When the reservoir is full, the maximum compressive force in a gravity dam is produced______________?
comments icon0

A. at the heel

B. at the toe

C. at centre of base

D. within the middle third of base

4232. The most suitable chemical which can be applied to the water surface for reducing evaporation is________________?
comments icon0

A. methyl alcohol

B. ethyl alcohol

C. butyl alcohol

D. cetyl alcohol
4233. The outlet discharge factor is the duty at the head of_________________?
comments icon0
A. watercourse

B. branch canal

C. distributory

D. main canal

4234. Infiltration rate is always________________?
comments icon0

A. less than the infiltration capacity

B. equal to or more than the infiltration capacity

C. more than the infiltration capacity

D. equal to or less than the infiltration capacity
4235. A hyetograph is a graphical representation of___________________?
comments icon0

A. cumulative rainfall and time

B. discharge and time

C. rainfall intensity and time

D. rainfall depth and time

4236. Infiltration capacity_________________?
comments icon0

A. is a constant factor

B. changes with time

C. changes with location

D. changes with both time and location
4237. If D is the depth of scour below original bed, then the width of launching apron is generally taken as________________?
comments icon0

A. 1.2 D

B. 2.0 D

C. 2.5 D

D. 1.5 D
4238. Dimensions of coefficient of transmissibility are______________?
comments icon0

A. MLT

B. MLV

C. M L2 T1

D. rvfLT1

4239. The water utilizable by plants is available in soils mainly in the form of________________?
comments icon0

A. chemical water

B. gravity water

C. capillary water

D. hydroscopic water

4240. When the upstream face of a gravity dam is vertical, then the intensity of water pressure at the water surface and at the base respectively will be_______________?
comments icon0

A. wH and 0

B. OandwII

C. 0 and wH212

D. wH2/2and wH2/3