civil engineering MCQs – Page 47

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 Review each marked answer and report any item that may be outdated or unclear.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

921. Effect of a force on a body depends upon________________?
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A. position or line of action

B. direction

C. all of the above

D. magnitude

E. none of the above

922. When trying to turn a key into a lock, following is applied___________________?
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A. non-coplanar forces

B. couple

C. coplanar force

D. lever

E. moment

923. The steel generally used in R.C.C. work, is_________________?
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A. Stainless

B. High tension steel

C. High carbon steel

D. Mild steel

924. The weight of a body is due to____________________?
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A. gravitational force of attraction towards the centre of the earth

B. force of attraction experienced by par-ticles

C. forces experienced by body in atmos-phere

D. centripetal force of earth

E. gravitational pull exerted by the earth

925. [A + (m 1)ASC] known as equivalent concrete area of R.C.C. is given by______________?
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A. Load factor method

B. None of these

C. Modular ratio method

D. Ultimate load method

926. A framed structure is perfect if it contains members equal to________________?
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A. 3n-2

B. n 2

C. 2n-l

D. 2n-3

E. n-l

927. The live load to be considered for an inaccessible roof, is______________?
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A. Nil

B. 150 kg/cm 2

C. 75 kg/m2

D. 200 kg/m2

928. If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is______________?
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A. c[A + (m 1)ASC]

B. cAc + m cAsc

C. c(A Asc) + m cAsc

D. All the above

929. The width of the flange of a T-beam should be less than_________________?
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A. Least of the above

B. Breadth of the rib plus twelve times the thickness of the slab

C. Distance between the centres of T-beam

D. One- third of the effective span of the T -beam

930. By over-reinforcing a beam, the moment of resistance can be increased not more than________________?
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A. 20%

B. 10%

C. 25 %

D. 15%

931. per unit run exerted by the Total pressure on the vertical face of a retaining wall of height retained earth weighing per unit volume, is___________________?
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A. wh [(1 )/2(1 + sin )]

B. wh [(1 )/(1 + sin )]

C. wh [(1 )/3(1 + sin )]

D. wh [(1 )/(1 + sin )]

932. If the average bending stress is 6 kg/cm2 for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is__________________?
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A. 48 d

B. 58 d

C. 28 d

D. 38 d

933. Which of the following do not have identical dimensions ?
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A. Torque and energy

B. Kinetic energy and potential energy

C. Moment of a force and angular momentum

D. Torque and work

E. Momentum and impulse

934. The minimum head room over a stair must be_______________?
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A. 200 cm

935. Which of the following is used to measure the discharge ?
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A. current meter

B. hotwire anemometer

C. pitot tube

D. venturimeter

936. The ratio of shear stress and shear strain of an elastic material, is________________?
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A. Modulus of Rigidity

B. Shear Modulus

C. Modulus of Elasticity

D. Both A. and B

937. The degree of indeterminacy of the frame in the given figure, is__________________?
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A. Zero

B. 2

C. 1

D. 3

938. A simply supported beam which carries a uniformly distributed load has two equal overhangs. To have maximum B.M. produced in the beam least possible, the ratio of the length of the overhang to the total length of the beam, is_________________?
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A. 0.307

B. 0.508

C. 0.207

D. 0.407

939. The locus of the moment of inertia about inclined axes to the principal axis, is______________?
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A. Parabola

B. Ellipse

C. Straight line

D. Circle

940. parabolic arch of span and rise , is given by The equation of a________________?
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A. y = 3h/l (1 x)

B. y = h/l (1 x )

C. y = 4h/l (1 x)

D. y = 2h/l (1 x)

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