In a furnace operation, which is not preheated? Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Both A and B Neither A nor B Solid fuels TRUE ANSWER : ? YOUR ANSWER : ?
hich is the most thermally efficient furnace? Reheating furnace Reverberatory furnace Boiler furnace Rotary kilns TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a directly fired intermittant furnace? Tunnel kiln Tower furnace Walking beam reheating furnace Reverberatory furnace TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is the most suitable for preheating combustion air above 650°C ? Regenerator Metallic recuperator Ceramic recuperator None of these TRUE ANSWER : ? YOUR ANSWER : ?
Pot furnace which is either regenerative or recupterative, is used in the manufacture of Glass Stainless steel Refractory bricks Potteries TRUE ANSWER : ? YOUR ANSWER : ?
__________ atmosphere is maintained inside an iron blast furnace. Decarburising Inert Reducing Oxidising TRUE ANSWER : ? YOUR ANSWER : ?
Pulverised fuel fired furnaces employ __________ fuel firing. All of these Horizontal Tangential Vertical TRUE ANSWER : ? YOUR ANSWER : ?
Artificial draught produced by a fan in the furnace can be controlled by the Speed of the fan Variation in the pitch of fan blades Damper All of these TRUE ANSWER : ? YOUR ANSWER : ?
The heat recoverable from flue gases of furnaces depends on the Thermal efficiency of furnace Quantity of flue gases Flue gas temperature drop through the furnace All of these TRUE ANSWER : ? YOUR ANSWER : ?
Furnace pressure is normally controlled by regulating the Damper Air pressure Fuel gas pressure Speed of I.D. fan TRUE ANSWER : ? YOUR ANSWER : ?