Civil Engineering MCQAE Level Civil Engineering
A rectangular RCC beam has b=300 mm, effective depth=400 mm and tension steel=1.0% of bd. Steel area is
RCCOriginal practiceMEDIUM
Choose the correct answer
A
2400 mm²
B
1200 mm²
C
120000 mm²
D
600 mm²
Correct Answer
B. 1200 mm²
Why is this the answer?
Tensile reinforcement area Ast = (pt / 100) * b * d, where pt = steel percentage (%), b = beam width (mm), d = effective depth (mm). IS 456 limits: minimum pt = 0.85*100/fy (for beams); maximum pt = 4% for beams. Ast governs moment capacity and must satisfy both strength and serviceability requirements. Ast = 1.0/100 × b × d = 1200 mm².
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:
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- 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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