Furnace Technology Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C. 250 1000 650 850 250 1000 650 850 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology If fuel and air are mixed ahead of the burner, it is called a/an __________ burner. Outside mixing type Rotary Diffusion Premix Outside mixing type Rotary Diffusion Premix ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of furnaces can be improved by Maintaining proper draught Minimising heat losses from furnace walls Waste heat recovery from flue gas All of these Maintaining proper draught Minimising heat losses from furnace walls Waste heat recovery from flue gas All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Rate of heat release in a furnace, which is the measure of heat intensity is defined as Kcal/m³ combustion space None of these Kcal/hr/m³ combustion space Kcal/hr Kcal/m³ combustion space None of these Kcal/hr/m³ combustion space Kcal/hr ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent. 80 40 60 20 80 40 60 20 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators compared to metallic recuperators for the same duty Occupy more space Are lighter Are less costly Have higher pressure differential between flue gas & air side Occupy more space Are lighter Are less costly Have higher pressure differential between flue gas & air side ANSWER DOWNLOAD EXAMIANS APP
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