Building Materials and Construction

A. 50 mm
B. 70.6 mm
C. 100 mm
D. 150 mm

A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. all of the above

A. calcium oxide
B. silica
C. clay
D. water

A. Both A and R are true and R is correct explanation of A
B. Both A and R are true and R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true

A. (1) and (4)
B. (2) and (3)
C. (1) and (2)
D. (3) and (4)

A. 30 minutes
B. 1 hour
C. 6 hours
D. 10 hours

A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. tetra calcium alumino ferrite

A. 10 minutes
B. 30 minutes
C. 60 minutes
D. 600 minutes

A. setting time of cement
B. soundness of cement
C. tensile strength of cement
D. compressive strength of cement

A. lime and silica
B. lime and alumina
C. silica and alumina
D. lime and iron