A. 1
B. 2
C. 3
D. 4
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 - 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 - For testing compressive strength of cement, the size of cube used is_______________?
A. 50 mm
B. 70.6 mm
C. 100 mm
D. 150 mm - As per IS specifications, the maximum final setting time for ordinary Portland cement should be_______________?
A. 30 minutes
B. 1 hour
C. 6 hours
D. 10 hours - Percentage of carbon content in mild steel is_______________?
A. less than 0.25
B. between 0.25 and 0.7
C. between 0.7 and 1.5
D. greater than 1.5 - Which of the following cements contains maximum percentage of dicalcium silicate?
A. ordinary Portland cement
B. low heat cement
C. rapid hardening cement
D. sulphate resisting cement - The main ingredients of Portland cement are________________?
A. lime and silica
B. lime and alumina
C. silica and alumina
D. lime and iron - 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 normal consistency of ordinary Portland cement is about________________?
A. 10%
B. 20%
C. 30%
D. 40%
