civil engineering MCQs – Page 278

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 Review each marked answer and report any item that may be outdated or unclear.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

5541. A projectile is fired at an angle 9 to the vertical. Its horizontal range will be maximum when 9 is_________________?
0

A. 60

B. 45

C. 0

D. 30

E. 90

5542. A framed structure is perfect if it contains members equal to________________?
0

A. n 2

B. 2n-l

C. 2n-3

D. 3n-2

E. n-l

5543. Two non-collinear parallel equal forces acting in opposite direction________________?
0

A. constitute a resultant couple

B. constitute a moment of couple

C. constitute a moment

D. balance each other

E. constitute a couple

5544. A force acting on a body may_______________?
0

A. retard its motion

B. introduce internal stresses

C. change its motion

D. all of the above

E. balance the other forces acting on it

5545. The unit of power in S.I. units is______________?
0

A. pascal per sec

B. newton meter

C. watt

D. joule

E. kilogram meter/sec

5546. A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly________________?
0

A. 38 m

B. 96 m

C. 124 m

D. 240 m

E. 62.5 m

5547. Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one________________?
0

A. circle

B. parabola

C. hyperbola

D. ellipse

E. none of the above

5548. If two equal forces of magnitude P act at an angle 9, their resultant will be________________?
0

A. Psin 9/2

B. P/2 cos 9/2

C. 2P tan 9/2

D. IP sin 9/2

E. IP cos 9/2

5549. A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal________________?
0

A. metal will float in water

B. metal is twice as dense as unknown fluid

C. none of the above

D. density of metal cant be determined

E. metal is twice as dense as water

5550. The possible loading in various members of framed structures are_______________?
0

A. shear or tension

B. all of the above

C. buckling or shear

D. compression or tension

E. bending

5551. Pick up the correct statement from the following?
0

A. Volumetric change in the cylinder due to liquid is (pd/2tE) (5/2 2/m)

B. All the above

C. Longitudinal strain in the walls of a cylinder due to liquid is (pd/2 tE) (1/2 1/m)

D. Hoop strain of the walls of a cylinder due to liquid is (pd/2tE) (1 1/2m)

5552. If a concrete column 200 200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15 Ec________________?
0

A. 264 MN

B. 274 MN

C. 284 MN

D. 294 MN

5553. If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good_______________?
0

A. E = 2N (1 + 1/m)

B. (3/2)K (1 2/m) = N (1 + 1/m)

C. All the above

D. E = 3K (1 2/m)

5554. A simply supported rolled steel joist 8 m long carries a uniformly distributed load over it span so that the maximum bending stress is 75 N/mm. If the slope at the ends is 0.005 radian and the value of E = 0.2 106 N/mm2, the depth of the joist, is________________?
0

A. 200 mm

B. 250 mm

C. 300 mm

D. 400 mm

5555. a uniform circular bar of diameter d and length , which extends by an The deflection of amount under a tensile pull , when it carries the same load at its mid-span, is___________________?
0

A. el/3d

B. el/3d

C. el/2d

D. el/3d

5556. static equations i.e. H V M = 0, to a determinate structure, we may By applying the determine_________________?
0

A. All the above

B. Supporting reactions only

C. Bending moments only

D. Shear forces only

5557. The equivalent length of a column of length L, having both the ends hinged, is_______________?
0

A. L

B. L

C. 2L

D. L/2

5558. A body is said to be in equilibrium if___________________?
0

A. It moves vertically

B. It rotates about its C.G.

C. It moves horizontally

D. None of these

5559. Shear strain energy theory for the failure of a material at elastic limit, is due to_________________?
0

A. Guest or Trecas

B. St. Venant

C. Von Mises

D. Rankine

5560. The S.F. diagram of a loaded beam shown in the given figure is that of________________?
0

A. A simply supported beam with uniformly distributed load

B. A simply supported beam with isolated central load

C. A cantilever with a uniformly distributed load

D. A cantilever with an isolated load at the free end

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