Civil Engineering MCQAE Level Civil Engineering
Water content is 180 kg/m³ and cement content is 400 kg/m³. Water-cement ratio is
RCCOriginal practiceMEDIUM
Choose the correct answer
A
2.22
B
0.45
C
0.90
D
0.23
Correct Answer
B. 0.45
Why is this the answer?
Water-cement ratio (w/c) = mass of free water / mass of cement. Per Abrams' law (1919), concrete compressive strength is governed primarily by w/c for given materials. Lower w/c gives higher strength and durability. IS 456:2000 limits: max w/c = 0.55 (moderate), 0.50 (severe), 0.45 (very severe), 0.40 (extreme exposure). w/c = water/cement = 180/400=0.45.
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:
Practice more Civil Engineering questions
This MCQ belongs to AE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.