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.Management Sciences
Category: Building Materials and Construction
The percentage of alumina in a good brick earth lies between________________?
A. 5 to 10%
B. 20 to 30%
C. 50 to 60%
D. 70 to 80%
Sum of tread and rise must lie between_______________?
A. 300 to 350 mm
B. 400 to 450 mm
C. 500 to 550 mm
D. 600 to 650 mm
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
Which of the following bricks are used for lining of furnaces ?
A. overburnt bricks
B. underburnt bricks
C. refractory bricks
D. first class bricks
The most common admixture which is used to accelerate the initial set of concrete is______________?
A. gypsum
B. calcium chloride
C. calcium carbonate
D. none of the above
Which of the following stone is best suited for construction of piers and abutments of a railway bridge ?
A. granite
B. sand stone
C. lime stone
D. quartzite
Quick lime is_______________?
A. calcium carbonate
B. calcium oxide
C. calcium hydroxide
D. none of the above
The type of footing which is used to transmit heavy loads through steel columns is_______________?
A. raft foundation
B. grillage foundation
C. well foundation
D. isolated footing
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