Strength of Materials MCQs (Civil Engineering)
Strength of Materials MCQs (Civil Engineering)
Our team has conducted extensive research to compile a set of Strength of Materials Civil Engineering MCQs. We encourage you to test your Strength of Materials Civil Engineering knowledge by answering these multiple-choice questions provided below.
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1: For a given material Young's modulus is 200 GN/m2 and modulus of rigidity is 80 GN/m2. The value of Poisson's ratio is
A. 0.25
B. 0.15
C. 0.30
D. 0.20
E. 0.40
2: The ratio of the moment of inertia of a circular plate and that of a square plate for equal depth, is
A. More than one
B. Equal to 3Π/16
C. Equal to one
D. Less than one
E. None of these.
3: If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by
A. 2
B. 8
C. 1/8
D. 1/2
E. 4
4: The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is
A. One-sixth of the radius.
B. One-third of the radius
C. One-quarter of the radius
D. One-fifth of the radius
E. One-half of the radius
5: If the shear force along a section of a beam is zero, the bending moment at the section is
A. Maximum
B. Minimum
C. Average of maximum-minimum
D. Zero
E. None of these.
6: A beam of length L is pinned at both ends and is subjected to a concentrated bending couple of moment M at its centre. The maximum bending moment in the beam is
A. M/3
B. M
C. ML/2
D. M/2
7: The radius of gyration of a rectangular section is not proportional to
A. None of these.
B. Square root of the inverse of the area
C. Square root of the moment of inertia divided by area of the section
D. Square root of the moment of inertia
8: Influence lines are drawn for structures
A. Of any type
B. Pin-jointed truss
C. Statically determinate
D. None of these.
9: A three-hinged arch is said to be:
A. A bent beam
B. Statically indeterminate structure
C. Statically determinate structure
D. None of these.
10: The deflection of any rectangular beam simply supported, is
A. Inversely proportional to its width
B. Directly proportional to the cube of its length
C. None of these.
D. Inversely proportional to the cube of its depth
E. Directly proportional to its weight
11: The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides and 300 cm length, is
A. 360
B. 200
C. 240
D. 500
E. 416
12: The minimum number of rivets for the connection of a gusset plate, is
A. 4
B. 3
C. 2
D. 1
13: If two forces acting at a joint are not along the straight line, then for the equilibrium of the joint
A. One of the forces must be zero
B. Forces must be equal and of the same sign
C. Each force must be zero
D. Forces must be equal in magnitude but opposite in sign.
14: The maximum twisting moment a shaft can resist, is the product of the permissible shear stress and
A. Modulus of rigidly.
B. Polar moment of inertia
C. Polar modulus
D. Moment of inertia
15: A simply supported beam carrying a uniformly distributed load over its whole span, is propped at the centre of the span so that the beam is held to the level of the end supports. The reaction of the prop will be
A. None of these.
B. Distributed load.
C. 3/8th the distributed load
D. 5/8th the distributed load
E. Half the distributed load
16: The shear stress at any section of a shaft is maximum
A. At the centre of the section
B. At a distance 3/4 r from the centre
C. At the top of the surface
D. At a distance r/2 from the centre
E. None of these.
17: If the rivets in adjacent rows are staggered and outermost row has only one rivet, the arrangement of the rivets, is called
A. None of these.
B. Chain riveting
C. Diamond riveting
D. Zig-zag riveting
18: The shape of the bending moment diagram over the length of a beam, having no external load, is always
A. Parabolic
B. Circular.
C. Cubical
D. Linear
19: In a beam, the neutral plane
A. Does not change during deformation
B. None of these.
C. May be its centre
D. Passes through the C.G. of the area of cross-section
20: Pick up the incorrect statement
A. Welded joints provide rigidity
B. Welded joints have better finish
C. A welded joint develops strength of its parent metal
D. The cross-sectional area of the welded member is effective
E. Welding takes more time than riveting.
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Strength of Materials MCQs (Civil Engineering)
