Building Materials and Construction

A. burning of lime stone
B. burning of kankar
C. adding water to quick lime
D. calcination of pure clay

A. hard
B. soft
C. porous
D. impervious

A. only (1)
B. only (2)
C. both (1) and (2)
D. both (2) and (3)

A. calcium carbonate
B. calcium oxide
C. calcium hydroxide
D. none of the above

A. 400
B. 450
C. 500
D. 550

A. it takes less time for burning
B. it gives more output of first class bricks
C. it has less initial cost
D. it is suitable when bricks are required in large numbers

A. bottom face
B. top face
C. shorter side
D. longer side

A. lime stone and alumina
B. silica and alkalies
C. alumina and iron
D. alkalies and magnesium

A. preparation of clay
B. moulding of clay
C. drying of bricks
D. burning of bricks

A. overburnt bricks
B. underburnt bricks
C. refractory bricks
D. first class bricks