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.Management Sciences
Category: Building Materials and Construction
The normal consistency of ordinary Portland cement is about________________?
A. 10%
B. 20%
C. 30%
D. 40%
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
Cross cut saw is used for_______________?
A. cutting soft stones
B. cutting hard stones
C. cutting large blocks of stones
D. dressing stones
The most important tool in brick laying for lifting and spreading mortar and for forming joints is____________?
A. trowel
B. square
C. bolster
D. scutch
Paints with white lead base are suitable for painting of______________________?
A. wood work
B. iron work
C. both wood work and iron work
D. none of the above
The type of arch generally constructed over a wooden lintel or over a flat arch for the purpose of carrying the load of the wall above is_______________?
A. segmental arch
B. pointed arch
C. relieving arch
D. flat arch
The most commonly used retarder in cement is_________________?
A. gypsum
B. calcium chloride
C. calcium carbonate
D. none of the above
Depth or height of the arch is the________________?
A. perpendicular distance between intra-dos and extrados
B. vertical distance between springing line and intrados
C. perpendicular distance between springing line and extrados
D. none of the above
After storage, the strength of cement________________?
A. decreases
B. increases
C. remains same
D. may increase or decrease
Spalling hammer is used for_____________?
A. driving wooden headed chisels
B. rough dressing of stones
C. carving of stones
D. breaking small projection of stones
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