Main constituent of cement which is responsible for initial setting of cement is ____ ?
A. tricalcium silicate
B. tricalcium aluminate
C. dicalcium silicate
D. None of them
Building Materials and Construction
Building Materials and Construction MCQs serve as a valuable resource for FPSC, NTS, KPPSC, PPSC, SPSC, KPPSC, OTS, BPSC, MES and other test preparations. Ideal for Civil Engineering students preparing for all competitive exams and technical interviews.
Main constituent which imparts hydraulicity to hydraulic lime is ____ ?
A. silica
B. water
C. calcium oxide
D. clay
As per IS specifications, the maximum final setting time for ordinary Portland cement should be ___ ?
A. 6 hours
B. 10 hours
C. 30 minutes
D. 1 hour
Constituent of cement which is responsible for all the undesirable properties of cement is ____ ?
A. tricalcium aluminate
B. tetra calcium alumino ferrite
C. dicalcium silicate
D. tricalcium silicate
Initial setting time for ordinary Portland cement as per IS specifications should not be less than _____ ?
A. 60 minutes
B. 600 minutes
C. 30 minutes
D. 10 minutes
Le Chatelier’s device is used for determining the _____ ?
A. tensile strength of cement
B. compressive strength of cemen
C. setting time of cement
D. soundness of cement
Main ingredients of Portland cement are ____ ?
A. silica and alumina
B. lime and iron
C. lime and silica
D. lime and alumina
Which of the following cements is suitable for use in massive concrete structures such as large dams?
A. rapid hardening cement
B. sulphate resisting cement
C. ordinary Portland cement
D. low heat cement
For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of _____ ?
A. 1:4
B. 1:6
C. 1:3
D. 1:2
Gypsum consists of ____ ?
A. CaS04 and H20
B. C02 and calcium
C. H2S and C02
D. Lime and H20