A. segregation
B. bleeding
C. bulking
D. creep
Related Mcqs:
- 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 - The property of the ingredients to separate from each other while placing the concrete is called____________?
A. segregation
B. compaction
C. shrinkage
D. bulking - 1% of voids in a concrete mix would reduce its strength by about______________?
A. 5%
B. 10 %
C. 15%
D. 20% - 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 - 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 - Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to_____________?
A. deflect downward
B. deflect upward
C. deflect downward or upward
D. none of the above - The relation between modulus of rupturefcr and characteristic strength of concrete fck is given by_______________?
A. fcr=0.35Vf7
B. fcr=0.57f7
C. fcr=0.7Vf7
D. fcr=1.2Vf7
where fcr and fck are in N/mm2′ - Modulus of rupture of concrete is a measure of_______________?
A. flexural tensile strength
B. direct tensile strength
C. compressive strength
D. split tensile strength - 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 - In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively_______________?
A. compressive and tensile
B. tensile and compressive
C. both compressive
D. both tensile
