Civil Engineering Mcqs

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

Submitted By :Ali Uppal

Modulus of rupture of concrete is a measure of_______________?

(A) flexural tensile strength
(B) direct tensile strength
(C) compressive strength
(D) split tensile strength

Submitted By :Ali Uppal

The percentage of voids in cement is approximately_______________?

(A) 25%
(B) 40%
(C) 60%
(D) 80%

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To determine the modulus of rupture, the size of test specimen used is_______________?

(A) 150 x150 x500 mm
(B) 100 x100 x700 mm
(C) 150 x150 x700 mm
(D) 100 x100 x500 mm

Submitted By :Ali Uppal

The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called________________?

(A) segregation
(B) bleeding
(C) bulking
(D) creep

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Workability of concrete is inversely pro¬portional to______________?

(A) time of transit
(B) ‘vater-cement ratio
(C) the air in the mix
(D) size of aggregate

Submitted By :Ali Uppal

Air entrainment in the concrete increases________________?

(A) workability
(B) strength
(C) the effects of temperature variations
(D) the unit weight

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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

Submitted By :Ali Uppal

Minimum grade of concrete to be used in reinforced concrete as per IS:456-1978 is_____________?

(A) M15
(B) M20
(C) M 10
(D) M25

Submitted By :Ali Uppal

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

Submitted By :Ali Uppal

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