Explore topic-wise MCQs in Civil Engineering.

This section includes 203 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

101.

*/*_According to IS: 456-1978, the maximum reinforcement in a column is?

A. 2 %
B. 4%
C. 6 %
D. 8 %
Answer» D. 8 %
Discussion
102.

*/*_Approximate value of shrinkage strain in concrete, is?

A. 0.003
B. 0.0003
C. 0.00003
D. 0.03
Answer» C. 0.00003
Discussion
103.

*/*_Examine the following statements :i) Factor of safety for steel should be based on its yield stress,ii) Factor of safety for steel should be based on its ultimate stress,iii) Factor of safety for concrete should be based on its yield stress,iv) Factor of safety for concrete should be based on its ultimate stress.The correct statements are?

A. (i) and (iii)
B. (i) and (iv)
C. (ii) and (iii)
D. (ii) and (iv)
Answer» C. (ii) and (iii)
Discussion
104.

*/*_The strength of concrete after one year as compared to 28 days strength is about?

A. 10 to 15% more
B. 15 to 20% more
C. 20 to 25% more
D. 25 to 50% more
Answer» D. 25 to 50% more
Discussion
105.

*/*_If the storey height is equal to length of RCC wall, the percentage increase in strength is?

A. 0
B. 10
C. 20
D. 30
Answer» C. 20
Discussion
106.

*/*_According to IS : 456-1978, the fiexural strength of concrete is?

A. directly proportional to compressive strength
B. inversely proportional to compressive strength
C. directly proportional to square root of compressive strength
D. inversely proportional to square root of compressive strength
Answer» D. inversely proportional to square root of compressive strength
Discussion
107.

*/*_Workability of concrete is directly proportional to?

A. Aggregate cement ratio
B. Time of transit
C. Grading of the aggregate
D. All of above
Answer» D. All of above
Discussion
108.

%_The diameter of ties in a column should be_%

A. More than or equal to one fourth of diameter of main bar
B. More than or equal to 5 mm
C. More than 5 mm but less than one-fourth of diameter of main bar
D. More than 5 mm and also more than one-fourth of diameter of main bar
Answer» E.
Discussion
109.

_ In a ring beam subjected to uniformly distributed loadi) shear force at mid span is zeroii) shear force at mid span is maximumiii) torsion at mid span is zeroiv) torsion at mid span is maximum The correct answer is$?

A. (i) and (iii)
B. (i) and (iv)
C. (ii) and (iii)
D. (ii) and (iv)
Answer» B. (i) and (iv)
Discussion
110.

_ In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by$?

A. 10%
B. 20%
C. 30%
D. 40%
Answer» E.
Discussion
111.

_ For a simply supported beam of span 15m, the minimum effective depth to satisfy the vertical deflection limits should be$?

A. 600 mm
B. 750 mm
C. 900 mm
D. more than 1 m
Answer» C. 900 mm
Discussion
112.

_ In reinforced concrete footing on soil, the minimum thickness at edge should not be less than$?

A. 100 mm
B. 150 mm
C. 200 mm
D. 250 mm
Answer» C. 200 mm
Discussion
113.

_ For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine’s theory$?

A. is always less than 1
B. is always greater than 1
C. can be more than 1
D. can be less than 1
Answer» B. is always greater than 1
Discussion
114.

_ According to IS : 456- 1978, minimum slenderness ratio for a short column is$?

A. less than 12
B. less than 18
C. between 18 and 24
D. more than 24
Answer» B. less than 18
Discussion
115.

_ The average permissible stress in bond for plain bars in tension is$?

A. increased by 10% for bars in compression
B. increased by 25% for bars in compression
C. decreased by 10% for bars in compression
D. decreased by 25% for bars in compression
Answer» C. decreased by 10% for bars in compression
Discussion
116.

_ The recommended value of modular ratio for reinforced brick work is$?

A. 18
B. 30
C. 40
D. 58
Answer» D. 58
Discussion
117.

_ Select the incorrect statement$?

A. Lean mixes bleed more as compared to rich ones.
B. Bleeding can be minimized by adding pozzuolana finer aggregate.
C. Bleeding can be increased by addition of calcium chloride.
D. none of the above
Answer» E.
Discussion
118.

_ In a counterfort retaining wall, the main reinforcement is provided on thei) bottom face in front counterfortii) inclined face in front counterfortiii) bottom face in back counterfortiv) inclined face in back counterEortThe correct answer is$?

A. (i) and (ii),
B. (ii) and (iii)
C. (i) and (iv)
D. (iii) and (iv)
Answer» D. (iii) and (iv)
Discussion
119.

_ Maximum quantity of water needed per 50 kg of cement for M 15 grade of concrete is$?

A. 28 liters
B. 30 liters
C. 32 liters
D. 34 liters
Answer» D. 34 liters
Discussion
120.

_ According to IS: 456-1978, the column or the strut is the member whose effective length is greater than$?

A. The least lateral dimension
B. 2 times the least lateral dimension
C. 3 times the least lateral dimension
D. 4 times the least lateral dimension
Answer» D. 4 times the least lateral dimension
Discussion
121.

_ Which of the following has high tensile strength ?$?

A. plain hot rolled wires
B. cold drawn wires
C. heat treated rolled wires
D. all have same tensile strength
Answer» C. heat treated rolled wires
Discussion
122.

_ In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always$?

A. zero
B. tensile
C. compressive
D. tensile or compressive
Answer» D. tensile or compressive
Discussion
123.

_ Most common method of prestressing used for factory production is$?

A. Long line method
B. Freyssinet system
C. Magnel-Blaton system
D. Lee-Macall system
Answer» B. Freyssinet system
Discussion
124.

_ Which of the following statements is incorrect?$?

A. Minimum cross sectional area of longitudinal reinforcement in a column is 0.8%
B. Spacing of longitudinal bars measured along the periphery of column should not exceed 300 mm
C. Reinforcing bars in a column should not be less than 12 mm in diameter
D. The number of longitudinal bars provided in a circular column should not be less than four
Answer» E.
Discussion
125.

_ Ratio of permissible stress in direct compression and bending compression is$?

A. less than 1
B. between 1 and 1.5
C. between 1.5 and 2.0
D. greater than 2
Answer» B. between 1 and 1.5
Discussion
126.

_ The compressive strength of 100 mm cube as compared to 150 mm cube is always$?

A. less
B. more
C. equal
D. none of the above
Answer» C. equal
Discussion
127.

_ The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)$?

A. 0.367 xu
B. 0.416 xu
C. 0.446 xu
D. 0.573 xu
Answer» C. 0.446 xu
Discussion
128.

_ 1% of voids in a concrete mix would reduce its strength by about$?

A. 5%
B. 10 %
C. 15%
D. 20%
Answer» B. 10 %
Discussion
129.

_ The fineness modulus of fine aggregate is in the range of$?

A. 2.0 to 3.5
B. 3.5 to 5.0
C. 5.0 to 7.0
D. 6.0 to 8.5
Answer» B. 3.5 to 5.0
Discussion
130.

__Diagonal tension in a beam__

A. Is maximum at neutral axis
B. Decreases below the neutral axis and increases above the neutral axis
C. Increases below the neutral axis and decreases above the neutral axis
D. Remains same
Answer» D. Remains same
Discussion
131.

__The approximate value of the ratio between direct tensile strength and flexural strength is__

A. 0.33
B. 0.5
C. 0.75
D. 1.0
Answer» C. 0.75
Discussion
132.

__If the depth of neutral axis for a singly reinforced rectangular section is represented by kd in working stress design, then the value of k for balanced section__

A. depends on as, only
B. depends on aCbC only
C. depends on both crst and acbc
D. is independant of both ast and acbc where d is the effective depth, ast is per-missible stress in steel in tension and ocbc is permissible stress in concrete in bending compression.
Answer» B. depends on aCbC only
Discussion
133.

_Sinking of an intermediate support of a continuous beami) reduces the negative moment at supportii) increases the negative moment at supportiii) reduces the positive moment at center of spaniv) increases the positive moment at center of span The correct answer is$?

A. (i) and (iii)
B. (i)and(iv)
C. (ii) and (iii)
D. (ii) and (iv)
Answer» C. (ii) and (iii)
Discussion
134.

_Ultimate strength of cold drawn high steel wires$?

A. increases with increase in diameter of bar
B. decreases with increase in diameter of bar
C. does not depend on diameter of bar
D. none of the above
Answer» C. does not depend on diameter of bar
Discussion
135.

_When shear stress exceeds the permissible limit in a slab, then it is reduced by$?

A. Increasing the depth
B. Providing shear reinforcement
C. Using high strength steel
D. Using thinner bars but more in number
Answer» B. Providing shear reinforcement
Discussion
136.

_The effect of creep on modular ratio is$?

A. to decrease it
B. to increase it
C. either to decrease or to increase it
D. to keep it unchanged
Answer» C. either to decrease or to increase it
Discussion
137.

_Workability of concrete is inversely proportional to$?

A. time of transit
B. vater-cement ratio
C. the air in the mix
D. size of aggregate
Answer» B. vater-cement ratio
Discussion
138.

_A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D) is less than$?

A. 1.5
B. 2.0
C. 2.5
D. 3.0
Answer» D. 3.0
Discussion
139.

_In a counterfort retaining wall, the main reinforcement in the stem at mid span is provided on$?

A. front face only
B. inner face only
C. both front face and inner face
D. none of the above
Answer» B. inner face only
Discussion
140.

_Minimum thickness of load bearing RCC wall should be$?

A. 50 mm
B. 100 mm
C. 150 mm
D. 200 mm
Answer» C. 150 mm
Discussion
141.

_Select the correct statement$?

A. Elastic modulus of high tensile steel is nearly the same as that of mild steel
B. Elastic modulus of high tensile steel is more than that of mild steel
C. Carbon percentage in high carbon steel is less than that in mild steel
D. High tensile steel is cheaper than mild steel
Answer» B. Elastic modulus of high tensile steel is more than that of mild steel
Discussion
142.

_In order to obtain the best workability of concrete, the preferred shape of aggregate is$?

A. rounded
B. elongated
C. angular
D. all of the above
Answer» B. elongated
Discussion
143.

_If the permissible stress in steel in tension is 140 N/mm², then the depth of neutral axis for a singly reinforced rectangular balanced section will be$?

A. 0.35 d
B. 0.40 d
C. 0.45 d
D. dependent on grade of concrete also
Answer» C. 0.45 d
Discussion
144.

_The relation between modulus of rupture fcr, splitting strength fcs and direct tensile strength fcl is given by$?

A. tcr – rcs = tct
B. fcr>fcs>fc.
C. fcr
D. fc5>fcr>fC
Answer» C. fcr
Discussion
145.

_In T-shaped R C. retaining walls, the main reinforcement in the stem is provided on$?

A. the front face in one direction
B. the front face in both directions
C. the inner face in one direction
D. the inner face in both directions
Answer» D. the inner face in both directions
Discussion
146.

_While designing the pile as a column, the end conditions are nearly$?

A. both ends hinged
B. both ends fixed
C. one end fixed and other end hinged
D. one end fixed and other end free
Answer» D. one end fixed and other end free
Discussion
147.

The property of the ingredients to separate from each other while placing the concrete is called$?

A. segregation
B. compaction
C. shrinkage
D. bulking
Answer» B. compaction
Discussion
148.

Increase in the moisture content in concrete$?

A. reduces the strength
B. increases the strength
C. does not change the strength
D. all of the above
Answer» B. increases the strength
Discussion
149.

Admixtures which cause early setting, and hardening of concrete are called$?

A. workability admixtures
B. accelerators
C. retarders
D. air entraining agents
Answer» C. retarders
Discussion
150.

As compared to ordinary portland cement, high alumina cement has$?

A. higher initial setting time but lower final setting time
B. lower initial setting time but higher final setting time
C. higher initial and final setting times
D. lower initial and final setting times
Answer» B. lower initial setting time but higher final setting time
Discussion