civil engineering MCQs – Page 163

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 Review each marked answer and report any item that may be outdated or unclear.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
3241. The main disadvantage of angle nose out parking configuration of aircraft is that the_______________?
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A. all the above

B. overall apron area required is more

C. hot blast is directed towards the terminal building

D. aircraft rear loading door is far away from terminal building.

3242. As per ICAO, for airports serving big aircrafts, the crosswind component should not exceed_________________?
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A. 45 kmph

B. 35 kmph

C. 15 kmph

D. 25 kmph

3243. The runway length after correcting for elevation and temperature is 2845 m. If the effective gradient on runway is 0.5 percent then the revised runway length will be_________________?
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A. 3030 m

B. 2910 m

C. 3130 m

D. 2845 m

3244. The centre to centre spacing of heliport lighting along the periphery of landing and take off area should be______________?
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A. 2.5 m

B. 10.0 m

C. 5.0 m

D. 7.5 m
3245. The size of landing area for multiengined helicopters operating under 1FR conditions is______________?
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A. 22.5 m x 30 m

B. 30 m x 30 m

C. 22.5 m x 22.5 m

D. 60 mx 120 m
3246. The width and interval of transverse centre line bars along the extended centre line of runway, in approach lighting system are_________________?
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A. 3 m and 30 m

B. 4.2 m and 30 m

C. 3 m and 45 m

D. 4.2 m and 50 m

3247. For supersonic transport aircraft, the minimum turning radius of taxiway is________________?
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A. 180 m

B. 240 m

C. 60 m

D. 120 m

3248. The unit of rotational inertia of a body in C.G.S system is________________?
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A. gm-cm3

B. cm4

C. gm-cm2

D. kg-cm2

3249. Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction. The speeds of the objects are____________________?
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A. 4 m/sec and 6 m/sec

B. 2 m/sec and 2 m/sec

C. 3 m/sec and 2 m/sec

D. 3 m/sec and 3 m/sec

3250. Minimum pull in a suspended cable with supports at two ends is equal to____________________?
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A. half the weight of the cable

B. resultant of horizontal thrust and support reaction

C. horizontal thrust

D. support reactions

3251. Free body diagram is an____________________?
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A. isolated joint with only body forces acting on it

B. none of the above

C. isolated joint with all the forces, internal as well as external, acting on it

D. isolated joint with internal forces acting on it

3252. Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis ?
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A. disc with larger density

B. disc with smaller density

C. both discs will have same rotational inertia

D. none of the above

3253. Which of the following is a scalar quantity ?
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A. energy

B. momentum

C. impulse

D. torque

3254. Force polygon method is applicable for_____________________?
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A. concurrent copianar force system

B. a system of parallel forces only

C. non-concurrent copianar force system

D. any copianar force system

3255. In which of the following trusses, the method of substitution is required for determining the forces in all the members of the truss by graphic statics ?
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A. howe truss

B. warren truss

C. fink truss

D. king post truss

3256. A simple pendulum of length 1 has an energy E when its amplitude is A. If its amplitude is increased to 2 A, the energy becomes____________________?
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A. E/2

B. 2E

C. 4E

D. E

3257. The torque produced by a force depends on__________________?
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A. the magnitude of the force

B. correct answer is?

C. thepoint of application of the force relative to origin</strong>

D. the direction of the force

3258. One Newton is equivalent to________________?
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A. 1/9.81 kg-wt

B. 1 kg-wt

C. 9.81 kg-wt

D. 981 dyne

3259. A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is_____________________?
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A. 8TC

B. 4

C. 6 7i

D. 8

3260. A rope is wrapped twice around a rough pole with a coefficient of friction A . It is subjected to a force Fj at one end and a gradually increasing force F2 is applied at the other end till the rope just starts slip-ping. At this instant the ratio of F2 to Fi is_____________________?
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A. 1

B. e2*

C. e*72

D. e4*