civil engineering MCQs – Page 56

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 Review each marked answer and report any item that may be outdated or unclear.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

1101. The horizontal component of force on a curved surface is equal to the_______________?
0

A. weight of liquid vertically above the curved surface

B. product of pressure intensity at its centroid and area

C. force on a vertical projection of the curved surface

D. force on the horizontal projection of the curved surface

1102. Tangent of angle of friction is equal to_________________?
0

A. angle of repose

B. friction force

C. limiting friction

D. kinetic friction

E. coefficient of friction

1103. Pick up the correct statement from the following?
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A. The bending stress at the outer fibres, is known as principal stress

B. The bending stress in a section is zero at its neutral axis and maximum at the outer fibres

C. All the above

D. The shear stress is zero at the outer fibres and maximum at the neutral axis

1104. A simply supported beam carries a varying load from zero at one end and w at the other end. If the length of the beam is a, the shear force will be zero at a distance x from least loaded point where x is_________________?
0

A. a/2

B. a

C. a

D. a/3

1105. If a vessel containing liquid moves downward with a constant acceleration equal to g then_____________?
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A. the pressure throughout the liquid mass is atmospheric

B. there will be vacuum in the liquid

C. none of the above

D. the pressure in the liquid mass is greater than hydrostatic pressure

1106. Maximum shear stress theory for the failure of a material at the elastic limit, is known________________?
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A. Rankines theory

B. St. Venants theory

C. Guests or Trecas theory

D. Haigs theory

1107. A body is said to be in equilibrium if___________________?
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A. It moves horizontally

B. It moves vertically

C. None of these

D. It rotates about its C.G.

1108. In series-pipe problems_______________?
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A. the discharge is same through each pipe

B. a trial solution is not necessary

C. the discharge through each pipe is added to obtain total discharge

D. the head loss is same through each pipe

1109. Pick up the incorrect statement from the following: The torsional resistance of a shaft is directly proportional to___________________?
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A. Modulus of rigidity

B. Angle of twist

C. Moment of inertia of the shaft section

D. Reciprocal of the length of the shaft

1110. Centre of buoyancy always_________________?
0

A. remains above the centre of gravity

B. remains below the centre of gravity

C. coincides with the centre of gravity

D. coincides with the centroid of the volume of fluid displaced

1111. If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque when t attains maximum shear stress fs the ratio of inner diameter to outer diameter, is 17/64 (f /N)s__________________?
0

A. 2-Jan

B. 1/4

C. 5-Jan

D. 3-Jan

1112. A lift of weight W is lifted by a rope with an acceleration f. If the area of cross-section of the rope is A, the stress in the rope is_______________?
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A. [W (1 + f/ G)]/ A

B. [W (2 + f/G)]/A

C. (1 g/f)/A

D. [W (2 + g/f)]/A

1113. The maximum bending moment for a simply supported beam with a uniformly distributed load w/unit length, is_________________?
0

A. WI/4

B. WI/2

C. WI/8

D. WI/12

1114. The eddy viscosity for turbulent flow is______________?
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A. a function of temperature only

B. independent of the flow

C. a physical property of the fluid.

D. dependent on the flow

1115. The assumption in the theory of bending of beams is_________________?
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A. All the above

B. Material is homogeneous

C. Youngs modulus is same in tension as well as in compression

D. Material is isotropic

1116. Co-efficient of wind resistance of a circular surface, is________________?
0

A. 3-Jan

B. 2/3

C. 2-Mar

D. 2-Jan

1117. In plastic analysis, the shape factor for a circular section, is_________________?
0

A. 1.7

B. 1.6

C. 1.5

D. 1.75

1118. A two hinged parabolic arch of span l and rise h carries a load varying from zero at the left end to________________?
0

A. /8h

B. /16h

C. /4h thrust is

D. /12h

1119. The force in BC of the truss shown in the given figure, is___________________?
0

A. t compression

B. t tension

C. 3.0 t compression

D. 3.0 t tension

1120. Coefficient of discharge for a totally submerged orifice as compared to that for an orifice discharging free is__________________?
0

A. slightly more

B. equal

C. slightly less

D. nearly half

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