- (A) Molten steel
- (B) Iron oxide
- (C) Lime slag
- (D) None of these
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- (A) Low co-efficient of thermal expansion
- (B) Poor thermal spalling resistance
- (C) Tendency to expand unduly high during firing
- (D) Very high cost
- (A) Resistance to slag penetration
- (B) Resistance to CO attack
- (C) RUL
- (D) Permanent linear change
- (A) 1520
- (B) 1630
- (C) 1670
- (D) 1730
- (A) Segar cones
- (B) Muffles for muffle furnaces
- (C) Insulating bricks
- (D) Crucibles used for melting of high purity metals
- (A) Diatomaceous earth/kieselgur
- (B) Asbestos
- (C) Vermiculite
- (D) None of these
- (A) Lime
- (B) Basic
- (C) Acid
- (D) None of these
- (A) Tar dolomite
- (B) Carbon
- (C) Silica
- (D) Fireclay
- (A) Strength
- (B) Thermal conductivity
- (C) Spalling resistance
- (D) None of these
- (A) Silica
- (B) Fireclay
- (C) Magnesite
- (D) Zirconia
