FURNACE TECHNOLOGY QUIZ

Regenerators are normally provided in the

By product coke ovens

All of these

Open hearth furnace

Glass melting furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

In reverberatory furnace, charge is heated mainly by

None of these

Conduction

Natural convection

Radiation of heat from the roof of the combustion chamber

TRUE ANSWER : ?
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Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the

Dust concentration & nature of dust in waste gas

Quantity & temperature of waste gas

Corrosive nature of the waste gas

All of these

TRUE ANSWER : ?
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In a muffle furnace, the muffle

Retards the heat transfer

Permits the use of controlled atmosphere for the protection of stock

All of these

Assists in temperature equalisation in the charge

TRUE ANSWER : ?
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Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by

Oxygen enrichment of combustion air

Preheating the fuel gas

Preheating the combustion air

All of these

TRUE ANSWER : ?
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Which is a continuous furnace?

Glass tank furnace

Coke ovens

None of these

Annealing furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

To reduce the stack loss, heat recovery from flue gas can be done by

Preheating of combustion air

Preheating of cold stock

All of these

Steam generation in waste heat boilers

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a heat treatment furnace?

Annealing furnace

Reheating furnace

Muffle furnace

Rotary kiln

TRUE ANSWER : ?
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The method of Lobo and Evans is concerned with the calculation of the

Heat transfer in vacuum condensers

Mass transfer co-efficient

Heat transfer by forced convection in a reboiler

Heat absorption in radiant section of a furnace

TRUE ANSWER : ?
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The heat recoverable from flue gases of furnaces depends on the

All of these

Thermal efficiency of furnace

Flue gas temperature drop through the furnace

Quantity of flue gases

TRUE ANSWER : ?
YOUR ANSWER : ?

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