Building Materials Mcqs
According to ISI, bitumen is classified into
A) 2 grades
B) 4 grades
C) 8 grades
D) 10 grades
Check Answer
D) 10 grades
The size of mould for bricks, is generally kept
A) A little large to specified size
B) A little small to specified size
C) Equal to specified size
D) 10% larger than specified size
Check Answer
A) A little large to specified size
For construction of structures under water, the type of lime used, is
A) Hydraulic lime
B) Fat lime
C) Quick lime
D) Pure lime
Check Answer
A) Hydraulic lime
Ultimate strength to cement is provided by
A) Tri-calcium silicate
B) Di-calcium silicate
C) Tri-calcium aluminate
D) Tetra calcium alumino ferrite
Check Answer
B) Di-calcium silicate
Initial setting time of cement for asbestos cement products should be not less than
A) 30 minutes
B) 50 minutes
C) 75 minutes
D) 90 minutes
Check Answer
D) 90 minutes
Percentage of silica in a good brick earth lies between
A) 5 to 10 %
B) 20 to 30 %
C) 50 to 60 %
D) 70 to 80 %
Check Answer
C) 50 to 60 %
Shingle is
A) Decomposed laterite
B) Crushed granite
C) Water bound pebbles
D) Air weathered rock
Check Answer
A) Decomposed laterite
Expansion Joints in masonry walls are provided in wall lengths usater than
A) 10 m
B) 20 m
C) 30 m
D) 40 m
Check Answer
D) 40 m
Strength of cement concrete primarily depends upon
A) Quality of water
B) Quantity of aggregate
C) Quantity of cement
D) Water-cement ratio
Check Answer
D) Water-cement ratio
Hydraulic lime is obtained by
A) Burning of lime stone
B) Burning of kankar
C) Adding water to quick lime
D) Calcination of pure clay
Check Answer
B) Burning of kankar
