Explore topic-wise MCQs in Civil Engineering.

This section includes 251 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

51.

If W and L are the total superimposed load and the span of a plate girder in metres, the approximate self weight (W) of the girder, is taken as

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» D. [D].
Discussion
52.

A long plate girder is subjected to a maximum bending moment M in which permitted allowable bending stress is fb. The economical depth de and the thickness of the web tw, is given by

A. [A].
B. [B].
C. [C].
D. [D].
E. none of these.
Answer» C. [C].
Discussion
53.

The bending moment for filler joists at the middle of at intermediate span, is

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» E. [E].
Discussion
54.

The load on a lintel is assumed as uniformly distributed if the height of the masonry above it, is upto a height of

A. the effective span
B. 1.25 times the effective span
C. 1.50 times the effective span
D. 2.0 times the effective span
E. 2.5 times the effective span.
Answer» C. 1.50 times the effective span
Discussion
55.

In a built up beam actual bending compressive stress fbc is given by (when y1 is the distance of the edge of the beam from the neutral axis).

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» B. [B].
Discussion
56.

The area Ap of cover plates in one flange of a built up beam, is given by

A. [A].
B. [B].
C. [C].
D. [D].
E. none of these.
Answer» E. none of these.
Discussion
57.

Under a concentrated load, bearing stress fb in a beam, is given by (where b is the length of the bearing plate and h is the depth of the root of the fillet).

A. [A].
B. [B].
C. [C].
D. [D].
Answer» C. [C].
Discussion
58.

For a cantilever beam of length L continuous at the support and unrestrained against torsion at the support and free at the end, the effective length l is equal to

A. l = L
B. l = 2L
C. l = 0.5L
D. l = 3L
E. l = 3.5L
Answer» E. l = 3.5L
Discussion
59.

With usual notations of the letters, the shear stress fs at any point of the cross-section is given by

A. [A].
B. [B].
C. [C].
D. [D].
Answer» B. [B].
Discussion
60.

The equivalent axial tensile load Pe, which produces an average axial tensile stress in the section equivalent to the combined stress due to axial tension P and bending M, at the extreme fibre of the section, is given by (where Z is the section modulus of the section).

A. [A].
B. [B].
C. [C].
D. [D].
Answer» B. [B].
Discussion
61.

In a member subjected to an axial tensile force and bending moment, the maximum allowable stress in axial tension is ft and the maximum allowable bending stress in tension is fht. If ft and fht are their corresponding actual axial tensile and bending stresses, the relationship which holds goods is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» C. [C].
Discussion
62.

In a tension member if b is width of plate, t is thickness of plate, p is staggered pitch, g is gauge distance, n is number of rivet holes in zig-zag line, n is number of gauge spaces, d is gross diameter of rivets, then the net sectional area Anet of the plate, is

A. [A].
B. [B].
C. [C].
D. [D].
E. none of these.
Answer» D. [D].
Discussion
63.

If a pair of angles placed back to back in tension are connected by one leg of each angle, the net effective area of the section, is

A. [A].
B. [B].
C. [C].
D. [D].
E. none of these.
Answer» E. none of these.
Discussion
64.

A single angle in tension is connected by one leg only. If the areas of connecting and outstanding legs are respectively a and b, net effective area of the angle, is

A. [A].
B. [B].
C. [C].
D. [D].
E. none of these.
Answer» C. [C].
Discussion
65.

The net area of round bars to resist the tension, is the area of cross section at

A. mid-section
B. root of the thread
C. difference of (a) and (b)
D. none of these.
Answer» C. difference of (a) and (b)
Discussion
66.

If L is the overall length of a combined footing having A as its area, d being the distance between the centre of gravity of the base and centre of the base, the larger width b is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» C. [C].
Discussion
67.

For a steel grillage footing to support two unequal column loads

A. line of action of the resultant of two column loads, is made to coincide with the centre of gravity of the base of the footing
B. trapezoidal shape is used for the base footing
C. projections of beams on either side in lower tier are such that bending moments under columns are equal
D. bending moment under the columns are kept equal to the bending moment between to two columns
E. all the above.
Answer» F.
Discussion
68.

In a grillage column footing maximum bending moment M occurs at the centre of grillage beams. Its value is (where P, L and a are axial load, length of the beam and length of the column base respectively).

A. M = P(L - a)
B. [B].
C. [C].
D. [D].
E. [E].
Answer» D. [D].
Discussion
69.

When the ratio of the moment M to axial load P is greater than, the resultant of the compressive bearing pressure which acts at a distance Y from one side, is given by

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» C. [C].
Discussion
70.

To keep the intensity of bearing pressure between the column base and concrete compressive and to vary from zero to , the ratio of the moment M to the axial load P should be

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» F.
Discussion
71.

To keep the intensity of bearing pressure between the column base and concrete, compressive throughout the length of the column base, the ratio of the moment M to axial load P should be

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» C. [C].
Discussion
72.

An axial loaded column is supported on a slab base whose projection is 8 cm. If the intensity of pressure from concrete is 40 kg/cm2 and allowable bending stress in slab base is 1890 kg/cm2, the thickness (t) of the slab base, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» C. [C].
Discussion
73.

If d is the diameter of column, D is the side of square base, W is total axial load and p is the allowable bending stress, the thickness (t) of the base plate, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» D. [D].
Discussion
74.

If M is the moment due to a couple in a bearing plate whose width is b and allowable bending stress is P, the thickness (t) of the bending plate of the column splice, is

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» C. [C].
Discussion
75.

When the upper column does not provide full bearing area over lower column, the column splice is provided with the following assumption

A. bearing plate is assumed as a short beam to transmit the axial load to the lower column section
B. axial load is assumed to be taken by flanges
C. load transmitted from the flanges of upper column and reactions from the flanges of lower columns are equal and form a couple
D. all the above.
Answer» E.
Discussion
76.

When a column is subjected to eccentric load having eccentricity ex, with respect to x-axis and eccentricity ey with respect to y-axis the column is subjected to moment in two directions and the equivalent axial load, is

A. [A].
B. [B].
C. [C].
D. [D].
E. none of these.
Answer» B. [B].
Discussion
77.

A column is carrying an axial load W and an eccentric load P. If A is its cross-sectional area, ex and ey are the eccentricities and Pxx and Zyy the section modulli, the equivalent axial load is obtained from the formula,

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» B. [B].
Discussion
78.

The equivalent axial load is obtained from the fomula

A. [A].
B. [B].
C. [C].
D. [D].
E. none of these.
Answer» B. [B].
Discussion
79.

For columns whose slenderness ratio is upto 160, the secant formula for the determination of allowable stress, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» B. [B].
Discussion
80.

The critical stress on a column for elastic buckling given by Euler's formula, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» B. [B].
Discussion
81.

If the moment of inertia of a section about its axis is I and its effective sectional area is A, its radius of gyration r about the axis, is

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» C. [C].
Discussion
82.

Effective length of a column effectively held in position at both ends and restrained in direction at one end, is

A. L
B. 0.67 L
C. 0.85 L
D. 1.5 L
E. 2 L
Answer» D. 1.5 L
Discussion
83.

The critical load for a column of length I hinged at both ends and having flexural rigidity El, is given by

A. [A].
B. [B].
C. [C].
D. none of these
Answer» B. [B].
Discussion
84.

Rivets subjected to shear and an externally applied tensile force, should be so proportioned that

A. [A].
B. [B].
C. [C].
D. [D].
Answer» E.
Discussion
85.

If P is the load applied to a bracket with an eccentricity e, the resisting moment F exerted by a rivet at a distance rn from the centre of gravity, is

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» C. [C].
Discussion
86.

If p and d are pitch and gross diameter of rivets, the efficiency (η) of the riveted joint, is given by

A. [A].
B. [B].
C. [C].
D. [D].
E. [E].
Answer» D. [D].
Discussion
87.

According to the Unwin's formula, if t is thickness of the plate in cm, the nominal diameter of the rivet, is

A. d = 1.91 t
B. d = 1.91 t2
C. d = 1.91 t
D. d = 1.91 t
E. d = 2.3 t
Answer» D. d = 1.91 t
Discussion
88.

Number of rivets required in a joint, is

A. [A].
B. [B].
C. [C].
D. [D].
E. none of these.
Answer» E. none of these.
Discussion
89.

When two plates are placed end to end and are joined by two cover plates, the joint is known as

A. lap joint
B. butt joint
C. chain riveted lap joint
D. zig-zag riveted lap joint
E. double cover butt joint.
Answer» F.
Discussion
90.

Working shear stress on the gross area of a rivet as recommended by Indian Standards, is

A. 785 kg/cm2
B. 1025 kg/cm2
C. 2360 kg/cm2
D. none of these.
Answer» C. 2360 kg/cm2
Discussion
91.

Assuming the values of maximum deviation ΔP and ΔE to be 25% of the computed value of P and E respectively, the minimum value of the factor of safety is

A. 1
B. 0.67
C. 1.67
D. 2.67
E. none of these.
Answer» D. 2.67
Discussion
92.

The permissible stress to which a structural member can be subjected to, is known as

A. bearing stress
B. working stress
C. tensile stress
D. compressive stress
E. all the above.
Answer» C. tensile stress
Discussion
93.

The channels get twisted symmetrically with regard to its axis

A. parallel to flanges
B. parallel to web
C. perpendicular to flanges
D. perpendicular to web.
Answer» C. perpendicular to flanges
Discussion
94.

In case of cantilever fillers, the ratio of the span L to depth d, should not exceed

A. projections of beams on either side in lower tier are such that bending moments under columns are equal
B. bending moment under the columns are kept equal to the bending moment between to two columns
C. all the above.
D. 4
Answer» D. 4
Discussion
95.

In a tension member if one or more than one rivet holes are off the line, the failure of the member depends upon :

A. 2 cm
B. 2.5 cm
C. 3 cm
D. pitch
Answer» E.
Discussion
96.

If P is the allowable bending stress in a slab, whose greater and lesser projections from the column faces, are A and B, the thickness (t) of the slab base, is (where w is the intensity of earth pressure.)

A. The minimum width of lacing bar connected with rivets of nominal diameter 16 mm, is kept 50 mm
B. The minimum thickness of a flat lacing bar is kept equal to one-fortieth of its length between inner end rivets
C. The angle of inclination of lacing bars and the axis of the members should be between 40° and 70°
D. All the above.
Answer» D. All the above.
Discussion
97.

The failure of a web plate takes place by yielding if the ratio of the clear depth to thickness of the web, is less than

A. one hole for each angle and two holes for the web
B. two holes for each angle and two holes for the web
C. none of these.
D. 45
Answer» E.
Discussion
98.

If flexural rigidity of a column whose length is L and the loaded end is free, is El, the critical load will be

A. tangent modulus of elasticity
B. all the above.
Answer» C.
Discussion
99.

A column splice is used to increase

A. 0.33 d
B. 0.44 d
C. length of the column
D. strength of the column
Answer» B. 0.44 d
Discussion
100.

The distance between e.g. of compression and e.g. of tension flanges of a plate girder, is known as

A. none of these.
B. overall depth
C. clear depth
D. effective depth
Answer» D. effective depth
Discussion