FURNACE TECHNOLOGY QUIZ

Power required in case of forced draught as compared to induced draught (for the same draught produced) is

Either more or less; depends on the flue gas density Answer: Option B

More

Same

Less

TRUE ANSWER : ?
YOUR ANSWER : ?

Recuperator is

Not used for fuel gas preheating

A continuous waste heat recovery equipment

Heavier than regenerator meant for the same duty

An intermittant waste heat recovery equipment

TRUE ANSWER : ?
YOUR ANSWER : ?

Blast furnace stoves are meant for heating

Air

None of these

Blast furnace gas

Steam

TRUE ANSWER : ?
YOUR ANSWER : ?

In low or standard frequency induction furnace, heat is produced by the

Induction and resistance

None of these

Combination of induced current and skin effect

Current flow through a heating element

TRUE ANSWER : ?
YOUR ANSWER : ?

Size of the combustion chamber of a furnace depends upon the

Heat release rate of the fuel

Preheat temperature of fuel & air

Method of mixing the fuel & air

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Cement Kiln is a

Rotary Kiln

Tunnel Kiln

Natural draft furnace

Batch furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

The advantages of firing pulverised coal in the furnace lies in the fact that, it

Accelerates the burning rate and economises on fuel consumption

All of these

Permits the use of high ash content coal

Permits the use of low fusion point ash coal

TRUE ANSWER : ?
YOUR ANSWER : ?

Dampers are located

After the I.D. fan

Before the I.D fan

Near the top of the chimney

Anywhere after the I.D. fan

TRUE ANSWER : ?
YOUR ANSWER : ?

In salt bath furnace, heat is transferred to the charge mainly by

Conduction

None of these

Radiation

Convection

TRUE ANSWER : ?
YOUR ANSWER : ?

Which furnace employs preheating, heating and soaking zones?

Soaking pit

Cupola

Reheating furnace

Open hearth furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

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