Question

Where the masonry is provided with steel reinforcing bars, the bars should be embedded with adequate cover in cement concrete of grade _________

(a) M 5

(b) M 10

(c) M 35

(d) M 15

I had been asked this question during an interview for a job.

My enquiry is from Earthquake Resistant topic in division Earthquake Resistant Buildings of Construction & Building Materials

Answer 1

Correct option is (d) M 15

Explanation: Where the masonry is provided with steel reinforcing bars, the bars should be embedded with adequate cover in cement concrete of grade M 15. This is done to achieve corrosion resistance and a good bond.