A. 50 mm
B. 70.6 mm
C. 100 mm
D. 150 mm
Related Mcqs:
- For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of___________________?
A. 1:2
B. 1:3
C. 1:4
D. 1:6 - Compared to mild steel, cast iron has (1) high compressive strength (2) high tensile strength (3) low compressive strength (4) low tensile strength The correct answer is_________________?
A. (1) and (2)
B. (2) and (3)
C. (3) and (4)
D. (1)and(4) - According to IS specifications, the compressive strength of ordinary portland cement after three days should not be less than________________?
A. 7 MPa
B. 11.5 MPa
C. 16 MPa
D. 21 MPa - The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is_______________?
A. 1
B. 2
C. 3
D. 4 - The constituent of cement which is responsible for all the undesirable properties of cement is____________?
A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. tetra calcium alumino ferrite - The main constituent of cement which is responsible for initial setting of cement is_________________?
A. dicalcium silicate
B. tricalcium silicate
C. tricalcium aluminate
D. all of the above - Early attainment of strength in rapid hardening cement is mainly due to_______________?
A. gypsum
B. finer grinding
C. tricalcium silicate
D. tricalcium aluminate - The initial setting time for ordinary Portland cement as per IS specifications should not be less than_____________?
A. 10 minutes
B. 30 minutes
C. 60 minutes
D. 600 minutes - Addition of pozzolana to ordinary Portland cement increases__________________?
A. bleeding
B. shrinkage
C. permeability
D. heat of hydration - The normal consistency of ordinary Portland cement is about________________?
A. 10%
B. 20%
C. 30%
D. 40%
