Design of Concrete Structures

A. 2.0 to 3.5
B. 3.5 to 5.0
C. 5.0 to 7.0
D. 6.0 to 8.5

A. steel and concrete are same
B. steel is lower than that for concrete
C. steel is higher than that for concrete
D. none of the above

A. remains constant
B. increases with richer mixes
C. decreases with richer mixes
D. none of the above

A. affects only the early development of strength
B. affects only the ultimate strength
C. both (A. and (B.
D. does not affect the strength

A. 5%
B. 10 %
C. 15%
D. 20%

A. 2 %
B. 4%
C. 6%
D. 10%

A. higher initial setting time but lower final setting time
B. lower initial setting time but higher final setting time
C. higher initial and final setting times
D. lower initial and final setting times

A. rounded
B. elongated
C. angular
D. all of the above

A. flexural tensile strength
B. direct tensile strength
C. compressive strength
D. split tensile strength

A. 25%
B. 40%
C. 60%
D. 80%