FURNACE TECHNOLOGY QUIZ

Regenerators are normally provided in the

Glass melting furnace

All of these

By product coke ovens

Open hearth furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

In reverberatory furnace, charge is heated mainly by

Radiation of heat from the roof of the combustion chamber

Natural convection

None of these

Conduction

TRUE ANSWER : ?
YOUR ANSWER : ?

Recuperator is

Not used for fuel gas preheating

A continuous waste heat recovery equipment

An intermittant waste heat recovery equipment

Heavier than regenerator meant for the same duty

TRUE ANSWER : ?
YOUR ANSWER : ?

Heat balance of furnace provides means of determining the

Thermal efficiency of the process

All of these

Sources of heat losses

Scope of reduction of heat losses

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is a continuous furnace?

Coke ovens

None of these

Glass tank furnace

Annealing furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Oxygen enrichment of combustion air does not result in increase of the

Stack loss

Oxygen in the flue gas

Heat transfer rate in the furnace

Flame temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Decarburisation of steel

Affects its crystalline structure

All of these

Is the removal of carbon from iron carbide (Fe₃C)

Is favoured by CO₂

TRUE ANSWER : ?
YOUR ANSWER : ?

Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of

Zircon powder

Beryllium

Thoria

Graphite powder

TRUE ANSWER : ?
YOUR ANSWER : ?

In a muffle furnace, the muffle

Retards the heat transfer

Assists in temperature equalisation in the charge

All of these

Permits the use of controlled atmosphere for the protection of stock

TRUE ANSWER : ?
YOUR ANSWER : ?

An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace.

Low frequency induction

Arc

Resistance

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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