Explore topic-wise MCQs in Civil Engineering.

This section includes 179 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.

The maximum horizontal deflection of a column of actual length L, when subjected to lateral forces, may be upto

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

The ratio of the effective lengths of two columns, one effectively held in position at one end and partially restrained at the other end, and the other effectively held in position at one end and free at the other end, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» D. [D].
Discussion
53.

The thickness of the steel

A. exposed to weather and accessible for repainting, should be not less than 6 mm
B. in main members not directly exposed to weather should not be less than 6 mm
C. in secondary members not directly exposed to weather shall be not less than 4.5 mm
D. All the above.
Answer» E.
Discussion
54.

If fbt and fs are the numerical values of bending tension and shear stresses, the equivalent stress fe, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» D. [D].
Discussion
55.

As per IS : 1982, the permissible axial tension in rolled I-beams and channels, is

A. 1500 kg/cm2
B. 1800 kg/cm2
C. 1400 kg/cm2
D. 1420 kg/cm2
Answer» B. 1800 kg/cm2
Discussion
56.

The distance of the critical section for shear from the periphery of the column or drop panal is at a distance (where d is effective depth of flat slab).

A. d
B. [B].
C. [C].
D. [D].
Answer» E.
Discussion
57.

A simply supported beam shall be deemed to be a deep beam if the ratio of its effective span to overall depth, is

A. 2
B. 2.5
C. less than 2
D. less than 2.5
Answer» B. 2.5
Discussion
58.

The minimum diameter of longitudinal reinforcement of a column should not be less than

A. 6 mm
B. 8 mm
C. 10 mm
D. 12 mm
E. 20 mm
Answer» E. 20 mm
Discussion
59.

If D is the overall thickness of the slab, the diameter of the reinforcing bars should not exceed

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

If b is the width of a beam, x is the spacing of the stirrup and fc is the characteristic strength of stirrups, the minimum cross sectional area of stirrup legs, should be equal or greater than

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

The total area of side face reinforcement, in case of a deep beam should not be less than

A. 0.1% of web area
B. 0.2% of web area
C. 0.3% of web area
D. 0.4% of web area.
Answer» C. 0.3% of web area
Discussion
62.

The anchorage value of standard U-type hook of a reinforcing bar of diameter d in tension, is

A. 4 d
B. 8 d
C. 12 d
D. 16 d
E. 20 d
Answer» E. 20 d
Discussion
63.

A solid slab spanning in two directions at right angles and carrying a uniformly distributed load, is supported on beams. If the length of two such beams A and B perpendicular to each other are x and y (x

A. [A].
B. [B].
C. [C].
D. [D].
Answer» D. [D].
Discussion
64.

If the main reinforcement of the slab is parallel to a T-beam, the transverse reinforcement at mid span of the slab is provided at least ......of main reinforcement

A. 40%
B. 50%
C. 60%
D. 70%.
Answer» D. 70%.
Discussion
65.

If b is actual width of a flange, Dt is the thickness of the flange, bω is the breath of the web, lo is the distance between the points of zero moments in a beam, the effective width of the flange, is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» D. [D].
Discussion
66.

If the end of a beam of span L carrying a designed load W is partially restrained by a built up wall, it is designed to resist the negative moment at the face of the support, equal to

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

If l is the effective span in metres and D is overall depth of the section in mm, the structure may be accepted after 24 hour load test, provided the maximum deflection in mm is less than

A. [A].
B. [B].
C. [C].
D. [D].
Answer» E.
Discussion
68.

If Δ is the deviation of the individual test strength from the average of n samples, the standard deviation of concrete of the given grade is

A. [A].
B. [B].
C. [C].
D. [D].
Answer» B. [B].
Discussion
69.

The grade of reinforced concrete to be used in sea water or structures exposed to sea water should be

A. M 10
B. M 15
C. M 20
D. M 30
Answer» D. M 30
Discussion
70.

Creep of concrete is assumed proportional to the stress if the stress does not exceed .......of the characteristic compressive strength

A. 15%
B. 20%
C. 25%
D. 33%
E. 50%
Answer» E. 50%
Discussion
71.

The characteristic strength of concrete is the strength of material if its test result is not less than

A. 2%
B. 3%
C. 4%
D. 5%
E. 10%
Answer» E. 10%
Discussion
72.

For all practical purposes, the modulus of elasticity of steel is assumed

A. 200 kN/mm2
B. 225 kN/mm2
C. 250 kN/mm2
D. 275 kN/mm2
Answer» B. 225 kN/mm2
Discussion
73.

The average 28 days compressive strength of at least three 15 cm concrete cubes prepared with available water as compared to the average strength of three similer concrete cubes prepared with distilled water, should be at least

A. 70%
B. 80%
C. 90%
D. 95%
Answer» D. 95%
Discussion
74.

The spans of filler joists supporting a slab may be considered approximately equal if the longest span does not exceed the shortest span more than
A. 0.05
B. 0.1
C. 0.15
D. 0.2
Answer» D. 0.2
Discussion
75.

The effective and actual lengths of a cantilever are same if continuous at the support,

A. 40 mm
B. 50 mm
C. unstrained against torsion at the support and free at the end
D. with partial restraint against torsion of the support and free at the end
Answer» D. with partial restraint against torsion of the support and free at the end
Discussion
76.

The distance between, rivet line and the nearest edge of a joint not exposed to weather, is taken (where t is thickness in mm of the thinner outside plate).

A. 3.200 m
B. 6 t
C. 8 t
D. 10 t
Answer» E.
Discussion
77.

For rolled I-beams and channels, permissible tensile and compressive stresses does not exceed

A. 1400 kg/cm2
B. 1500 kg/cm2
C. 1650 kg/cm2
D. 1800 kg/cm2
Answer» D. 1800 kg/cm2
Discussion
78.

If the ratio of effective span to overall depth of a simply supported beam is equal or greater than 1 but less than or equal to 2, the lever arm, is

A. 0.2 (l + 2D)
B. 0.3 (l + 3D)
C. 0.2 (l + 3D)
D. 0.3 (l + 2D)
Answer» B. 0.3 (l + 3D)
Discussion
79.

The reduced level of third floor of a building near a column is 205.350 m. The reduced levels of the undersides of four beams supporting the fourth floor framing into the column mutually perpendicular are 208.350 m, 208.450 m, 208.500 m and 208.550 m. The supported length of the column is

A. 20 N/mm2
B. 3.000 m
C. 3.100 m
D. 3.150 m
Answer» B. 3.000 m
Discussion
80.

In limit state method, the design bond stress of M 30 grade concrete for plain bars in tension, is

A. 7 mm
B. l.O N/mm2
C. 1.2 N/mm2
D. 1.4 N/mm2
Answer» E.
Discussion
81.

The slenderness ratio of a tie in a roof truss if subjected to action of wind and seismic forces, should not be greater than

A. 0.7
B. 180
C. 210
D. 250
Answer» E.
Discussion
82.

The creep coefficient i.e. the ratio of ultimate creep and elastic strain after

A. 7 days is 2.2
B. 28 days is 1.6
C. 365 days is 1.1
D. all the above.
Answer» E.
Discussion
83.

If the ratio of effective span to overall depth of a simply supported beam is less than 1, the lever arm is

A. 0.3l
B. 0.4l
C. 0.5l
D. 0.6l
Answer» E.
Discussion
84.

Four reinforcing bars of 30 mm diameter each, are bundled in contact. The lower two bars extend up to end supports. The distance between the points of termination of the upper bars, is kept

A. zero
B. 1.2 m
C. 0.9 m
D. 0.75 m
Answer» C. 0.9 m
Discussion
85.

The concrete may be accepted if the average equivalent cube strength of the cores, is at least 85% of the cube strength of the concrete grade at the specified age and no individual core possesses strength less than

A. 0.9
B. 0.85
C. 0.8
D. 0.75
Answer» E.
Discussion
86.

The side face reinforcement is provided if the depth of the web of a beam exceeds

A. 600 mm
B. 650 mm
C. 700 mm
D. 750 mm
Answer» E.
Discussion
87.

The tolerances for the form work of columns and beams range from

A. - 3 mm to + 6 mm
B. - 4 mm to + 8 mm
C. - 6 mm to + 12 mm
D. - 8 mm to + 12 mm
Answer» D. - 8 mm to + 12 mm
Discussion
88.

Minimum thickness of steel work directly exposed to weather but not accessible for cleaning and repainting, the thickness should be not less than

A. 4 mm
B. 6 mm
C. 7 mm
D. 8 mm
Answer» E.
Discussion
89.

The greater clear dimension of web of thickness't' should not exceed

A. 180 t
B. 200 t
C. 240 t
D. 270 t
Answer» E.
Discussion
90.

Pick up the correct statement applicable to cased columns.

A. Single I-beam or channels back with or without flange plates may be used
B. The overall dimensions of the steel section do not exceed 750 x 450 mm over plate if used
C. The column is unpainted and is solidly encased in ordinary dense concrete with 10 mm aggregates having a minimum of cube strength 160 kg/cm2 at 28 days
D. The surface and edges of the steel column should be provided a concrete cover not less than 50 mm
Answer» E.
Discussion
91.

The development length of each bar of three bars bundled together is increased by

A. 0.1
B. 0.2
C. 0.33
D. 0.5
Answer» D. 0.5
Discussion
92.

The maximum spacing of shear reinforcement should not exceed 0.75 d subject to a minimum of

A. 300 mm
B. 350 mm
C. 400 mm
D. 450 mm
Answer» E.
Discussion
93.

The slenderness effect of a wall is considered if the effective height of the wall exceeds the thickness

A. 8 times
B. 10 times
C. 12 times
D. 16 times
Answer» D. 16 times
Discussion
94.

For nominal mix concrete M 20, the required quantity of water per 50 kg. of cement, is

A. 60 litres
B. 45 litres
C. 34 litres
D. 30 litres
Answer» E.
Discussion
95.

Minimum diameter of the lateral ties should not be less than

A. 4 mm
B. 5 mm
C. 6 mm
D. 10 mm
Answer» C. 6 mm
Discussion
96.

If the ends of the compression flanges of simply supported girders are fully restrained against lateral bending, the effective length is taken as

A. span
B. 0.85 x span
C. 0.7 x span
D. 0.5 x span
Answer» D. 0.5 x span
Discussion
97.

To achieve uniform colour and consistency of the concrete by using ordinary Portland cement, the mixing time may be

A. to 1 minute
B. 1 to minutes
C. to 2 minutes
D. 2 to minutes
Answer» D. 2 to minutes
Discussion
98.

If fck is characteristic compressive strength of concrete, the flexural and split tensile strength fcr = afck N/mm2 where the value of a is

A. 0.4
B. 0.5
C. 0.6
D. 0.7
Answer» E.
Discussion
99.

The width of lacing bars in mm is kept

A. equal to nominal rivet diameter
B. twice the nominal rivet diameter
C. thrice the nominal rivet diameter
D. maximum of the above rounded to nearest 5 mm.
Answer» E.
Discussion
100.

The minimum thickness of the web plate for a crane gantry plate girder with a lifting load exceeding 15 tonnes, is

A. 4 mm
B. 5 mm
C. 6 mm
D. 8 mm
Answer» E.
Discussion