MCQ Questions Civil Engineering Concrete Technology and Design of Concrete Structures
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MCQ Questions Civil Engineering Concrete Technology and Design of Concrete Structures - Set - 5
Question 1:
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
Correct Answer – (C)
Question 2 :
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
Correct Answer – (B)
Question 3 :
One of the criteria for the effecvve width of flange of T-beam is bf =_______ + bw + 6Df 6 In above formula, l0 signifies
a) effective span of T-beam
b) distance between points of zero moments in the beam
c) distance between points of maximum moments in the beam
d) clear span of the T-beam
Correct Answer – (B)
Question 4 :
For walls, columns and vertical faces of all structural members, the form work is generally removed after
a) 24 to 48 hours
b) 3 days
c) 7 days
d) 14 days
Correct Answer – (A)
Question 5 :
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
Correct Answer – (C)
MCQ Questions Civil Engineering Concrete Technology and Design of Concrete Structures
Question 6:
For a continuous slab of 3 m x 3.5 m size, the minimum overall depth of slab to satisfy vertical deflection limits is
a) 50 mm
b) 75 mm
c) 100 mm
d) 120 mm
Correct Answer – (B)
Question 7:
For a cantilever of effective depth of 0.5m, the maximum span to satisfy vertical deflection limit is
a) 3.5 m
b) 4 m
c) 4.5 m
d) 5 m
Correct Answer – (A)
Question 8:
The individual variation between test strength of sample should not be more than
a) ±5% of average
b) ± 10% of average
c) ± 15% of average
d) ±20% of average
Correct Answer – (C)
Question 9:
In case of hand mixing of concrete, the extra cement to be added is
a) 5%
b) 10%
c) 15%
d) 20%
Correct Answer – (B)
Question 10:
For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be
a) 0.75-0.80
b) 0.80-0.85
c) 0.85 – 0.92
d) above 0.92
Correct Answer – (D)
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