The heat recoverable from flue gases of furnaces depends on the Quantity of flue gases Thermal efficiency of furnace Flue gas temperature drop through the furnace All of these TRUE ANSWER : ? YOUR ANSWER : ?
In order to maintain a reducing atmosphere in a furnace, it should have No O₂ in flue gas CO in flue gas High excess air None of these TRUE ANSWER : ? YOUR ANSWER : ?
Reheating furnace (pusher type) is used for heating Ingots Steel coils Slabs Steel sheets TRUE ANSWER : ? YOUR ANSWER : ?
Which furnace employs preheating, heating and soaking zones? Reheating furnace Soaking pit Open hearth furnace Cupola TRUE ANSWER : ? YOUR ANSWER : ?
In reverberatory furnace, charge is heated mainly by Conduction Radiation of heat from the roof of the combustion chamber Natural convection None of these TRUE ANSWER : ? YOUR ANSWER : ?
Which is a regenerative furnace? Open hearth furnace Both A and B Coke oven heating chamber Neither A nor B TRUE ANSWER : ? YOUR ANSWER : ?
Reducing atmosphere is maintained in a Blast furnace Calcination kiln L.D. converter Soaking pit TRUE ANSWER : ? YOUR ANSWER : ?
Very high pressure boilers are usually __________ boilers. Water tube Waste heat Natural circulation Fire tube TRUE ANSWER : ? YOUR ANSWER : ?
hich is the most thermally efficient furnace? Boiler furnace Reverberatory furnace Reheating furnace Rotary kilns TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a rotary furnace? Stoves Soaking pit Annealing furnace Lime kiln TRUE ANSWER : ? YOUR ANSWER : ?