A. Porosity
B. Specific gravity
C. Thermal conductivity
D. Strength
A. Slide gate in teeming laddies
B. Continuous casting systems
C. Both A. and B.
D. Neither A. nor B.
A. 5-10
B. 10-25
C. 25-35
D. 35-50
A. High porosity
B. Low thermal conductivity
C. Both A. and B.
D. Neither A. not B.
A. Increases with decrease in porosity
B. Decreases with decreases in porosity
C. Is independent of its porosity and is maximum for insulating bricks
D. Increases with the amount of air entrapped in pores
A. Decreased viscosity of slag
B. Increased thermal conductivity of brick
C. Oxidising condition in the furnace
D. None of these
A. Increases
B. Decreases
C. Remain same
D. May increase or decrease