- (A) 50
- (B) 65
- (C) 85
- (D) 99
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- (A) Cupola
- (B) Reheating furnace
- (C) Glass tank furnace
- (D) None of these
- (A) 50
- (B) 100
- (C) 150
- (D) 250
- (A) Rate of firing and emissivity of flame
- (B) Thermal conductivity of the charge & structural materials of furnace
- (C) Nature of process; whether batch, continuous or intermittent
- (D) All
- (A) To increase heat transfer by convection
- (B) To ensure uniform temperature
- (C) In furnaces, operating below 750°C
- (D) All
- (A) kcal/hr/m3 combustion space
- (B) kcal/m3 combustion space
- (C) kcal/hr
- (D) None of these
- (A) Are lighter
- (B) Occupy more space
- (C) Are less costly
- (D) Have higher pressure differential between flue gas & air side
- (A) Occupy more space
- (B) Are less costly
- (C) Are of smaller size
- (D) All
- (A) Flue gas volume
- (B) Flame temperature
- (C) Fuel consumption
- (D) Stack loss
- (A) Glass tank furnace
- (B) Open hearth furnace
- (C) Cupola
- (D) Reheating furnace
