Furnace Technology Ingress of cold air in the furnaces through cracks, charging doors, openings etc. Reduces the furnace draught All of these Increases the load on the induced draft fan Reduces the flue gas temperature and makes the furnace atmosphere oxidising Reduces the furnace draught All of these Increases the load on the induced draft fan Reduces the flue gas temperature and makes the furnace atmosphere oxidising ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 25-30 44119 45-50 65-70 25-30 44119 45-50 65-70 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Specific heating capacity of a furnace is expressed as Weight heated/hr/furnace volume Weight heated/furnace volume Weight heated/hr None of these Weight heated/hr/furnace volume Weight heated/furnace volume Weight heated/hr None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The rate of scaling of furnace stock depends upon the All of these Time Temperature Nature of atmosphere All of these Time Temperature Nature of atmosphere ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following furnaces will have maximum thermal efficiency? Soaking pits Walking beam reheating furnace Boiler furnace Rotary kilns Soaking pits Walking beam reheating furnace Boiler furnace Rotary kilns 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 Premix Diffusion Outside mixing type Rotary Premix Diffusion ANSWER DOWNLOAD EXAMIANS APP