Civil Engineering MCQJE Level Civil Engineering
The minimum clear cover for reinforcement in a slab (mild exposure) as per IS 456 is:
RCCRCCEASY
Choose the correct answer
A
10 mm
B
20 mm
C
30 mm
D
40 mm
Correct Answer
B. 20 mm
Why is this the answer?
IS 456 Clause 26.4: Nominal cover for slabs in mild exposure = 20 mm. This protects steel from corrosion and fire. Clear cover = nominal cover − half bar dia. For beams mild exposure = 25 mm, columns = 40 mm. Covers increase with exposure severity.
Related RCC MCQs
More solved RCC questions for AE/JE Civil Engineering exams.
- The 'ductility' of RC structures is improved under earthquake loading by:
- For a circular RC water tank with rigid base, the hoop tension is maximum at:
- The 'end block' in a post-tensioned member is specially designed for:
- A 'shear wall' in a multi-storey RC building acts as:
- The 'minimum clear cover' for reinforcement in a RCC beam in severe exposure (IS 456) is:
- The 'torsion' in RC beams is resisted by:
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