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7.

According to IS : 456- 1978, minimum slenderness ratio for a short column is                        
A. less than 12 B. less than 18
C. between 18 and 24 D. more than 24



8.

According to IS : 456 -1978, the modulus of elasticity of concrete Ec (in N/mm2) can be taken as                        
A. Ec == 5700 B. Ec == 570
C. Ec == 5700fck D. Ec = where fck N/mm2 = 700 is the characteristic strength in



9.

According to IS : 456-1978, the cblumn or the strut is the member whose effective length is greater than                        
A. the least lateral dimension B. 2 times the least lateral dimension
C. 3 times the least lateral dimension D. 4 times the least lateral dimension




10.

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



11.

According to IS: 456-1978, the maximum reinforcement in a column is                        
A. 2% B. 4%
C. 6% D. 8%



12.

According to ISI recommendations, the maximum depth of stress block for balanced section of a beam of effective depth d is                        
A. 0.43 d B. 0.55 d
C. 0.68 d D. 0.85 d



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