civil engineering MCQs – Page 14

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 Review each marked answer and report any item that may be outdated or unclear.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
261. The provision of traffic signals at intersections______________?
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A. reduces right angled collisions but may increase rear end collisions

B. reduces rear end collisions but may increase right angled collisions

C. increases right angled and rear end collisions

D. reduces right angled and rear end collisions

262. In soils having same values of plasticity index, if liquid limit is increased, then_____________?
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A. compressibility and permeability decrease and dry strength increases

B. compressibility and permeability increase and dry strength decreases

C. compressibility, permeability and dry strength decrease

D. compressibility, permeability and dry strength increase

263. If aggregate impact value is 20 to 30 percent, then it is classified as_______________?
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A. satisfactory for road surfacing

B. strong

C. exceptionally strong

D. unsuitable for road surfacing

264. Benchmark is established by________________?
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A. trigonometrical levelling

B. spirit levelling

C. barometric levelling

D. hypsometry

265. The maximum number of vehicles beyond which the rotary may not function efficiently is______________?
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A. 500 vehicles per day

B. 500 vehicles per hour

C. 5000 vehicles per hour

D. 5000 vehicles per day

266. Minimum grade of concrete to be used in reinforced concrete as per IS:456-1978 is_____________?
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A. M 10

B. M15

C. M20

D. M25

267. In case of hand mixing of concrete, the extra cement to be added is__________________?
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A. 10%

B. 20%

C. 5%

D. 15%

268. The angle of intersection of the two plane mirrors of an optical square is______________?
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A. 60

B. 30

C. 90

D. 45
269. A telescope is said to be inverted if its______________?
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A. vertical circle is to its left and the bubble of the telescope is down

B. vertical circle is to its right and the bubble of the telescope is down

C. vertical circle is to its right and the bubble of the telescope is up

D. vertical circle is to its left and the bubble of the telescope is up

270. The two point problem and three point problem are methods of________________?
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A. traversing

B. resection and orientation

C. resection

D. orientation

271. The binder normally used in flexible pavement construction is________________?
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A. bitumen

B. cement

C. lime

D. none of the above

272. The aggregates required for one kilometer length of water bound macadam road per meter width and for 10 mm thickness is________________?
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A. 8 cubic meter

B. 12 cubic meter

C. 15 cubic meter

D. 10 cubic meter

273. Select the correct statement_________________?
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A. Psychological extra widening depends on the length of wheel base.

B. Psychological extra widening depends on the number of traffic lanes.

C. Psychological extra widening depends on the speed of vehicle

D. Mechanical extra widening depends on the speed of vehicle.

274. The strength of concrete after one year as compared to 28 days strength is about_______________?
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A. 20 to 25% more

B. 25 to 50% more

C. 15 to 20% more

D. 10 to 15% more

275. Dead Slow is a______________?
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A. regulatory sign

B. warning sign

C. none of the above

D. informatory sign

276. For walls, columns and vertical faces of all structural members, the form work is generally removed after_______________?
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A. 7 days

B. 3 days

C. 24 to 48 hours

D. 14 days

277. Which of the following tests measures the toughness of road aggregates ?
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A. impact test

B. shape test

C. abrasion test

D. crushing strength test

278. If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to_______________?
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A. 1/d2

B. 1/d

C. d

D. d2
279. The methods used for locating the plane table stations are_______________?
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A. correct answer is

B. ntersection

C. resection

D. radiation

E. traversing

280. According to IS : 456 -1978, the modulus of elasticity of concrete Ec (in N/mm2) can be taken as______________?
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A. Ec = where fck N/mm2 = 700 is the characteristic strength in

B. Ec = = 5700

C. Ec = = 570

D. Ec = = 5700fck