Iron or steel is used in reinforcement in concrete because

Question

(a) Concrete has higher coefficient of expansion than iron or steel .\[\](b) Concrete has lower coefficient of expansion than iron or steel .\[\](c) both have nearly equal coefficients of expansion .\[\](d) both are good conductors of heat .

Answer 1

Answer : both have nearly equal coefficients of expansion .

Iron or steel is used in reinforcement in concrete because - both have nearly equal coefficients of expansion .