civil engineering MCQs – Page 17

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 Review each marked answer and report any item that may be outdated or unclear.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
321. For accurate work, the steel band should always be used in preference to chain because the steel band______________?
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A. is lighter than chain

B. can be easily repaired in the field

C. is practically inextensible and is not liable to kinks when in use

D. is easier to handle

322. Which of the following errors can be neutralised by setting the level midway between the two stations ?
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A. error due to curvature only

B. error due to refraction only

C. error due to both curvature and re-fraction

D. none of the above

323. During chaining along a straight line, the . leader of the party has 4 arrows in his hand while the follower has 6. Distance of the follower from the starting point is_____________?
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A. 120 m

B. 4 chains

C. 6 chains

D. 180m

324. Which of the following shapes is preferred in a valley curve ?
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A. cubic parabola

B. lemniscate

C. simple parabola

D. spiral

325. The number of horizontal cross wires in a stadia diaphragm is ________________?
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A. four

B. two

C. three

D. one

326. 1% of voids in a concrete mix would reduce its strength by about______________?
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A. 20%

B. 15%

C. 10%

D. 5%
327. As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be________________?
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A. 103.3

B. 102.3

C. 98.7

D. 100.00
328. For highway geometric design purposes the speed used is________________?
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A. 15th percentile

B. 98 percentile

C. 50 percentile

D. 85th percentile

329. Which of the following represents a carpet of sand-bitumen mix without coarse aggregates ?
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A. bituminous concrete

B. sheet asphalt

C. mastic asphalt

D. bituminous carpet

330. Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?
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A. error due to displacement of station signals

B. error due to inaccurate graduation

C. error due to eccentricity of verniers

D. error due to wrong adjustment of line of collimation and trunnion axis

331. The maximum design gradient for vertical profile of a road is______________?
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A. ruling gradient

B. minimum gradient

C. limiting gradient

D. exceptional gradient

332. Centre line markings are used_____________?
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A. to indicate that overtaking is not permitted

B. to designate traffic lanes

C. to designate proper lateral placement of vehicles before turning to different directions

D. in roadways meant for two way traffic
333. The maximum limit of water absorption for aggregate suitable for road construction is____________?
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A. 0.6%

B. 0.80%

C. 0.40%

D. 1.00%

334. For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is______________?
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A. 3.5 m

B. 4.5 m

C. 4 m

D. 5 m

335. Contour interval is_______________?
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A. inversely proportional to the scale of the map

B. larger if the time available is more

C. directly proportional to the flatness of ground

D. larger for accurate works

336. Workability of concrete is directly proportional to________________?
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A. time of transit

B. aggregate cement ratio

C. grading of the aggregate

D. all of above

337. The maximum tolerance in a 20 m chain is_______________?
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A. 2 mm

B. 5 mm

C. 8 mm

D. 3 mm

338. For a line AB_______________?
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A. the forebearing of AB and back bearing of AB differ by 180

B. the forebearing of AB and back bearing of BA differ by 180

C. both (A. and (B. are correct.

D. none is correct

339. With the rise of temperature, the sensitivity of a bubble tube______________?
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A. remains unaffected

B. increases

C. decreases

D. none of the above

340. If a beam fails in bond, then its bond strength can be increased most economi-cally by___________?
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A. providing vertical stirrups

B. increasing the depth of beam

C. using thicker bars but less in number

D. using thinner bars but more in number