FURNACE TECHNOLOGY QUIZ

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

Graphite powder

Thoria

TRUE ANSWER : ?
YOUR ANSWER : ?

Specific heating capacity of a furnace is expressed as

Weight heated/hr/furnace volume

None of these

Weight heated/furnace volume

Weight heated/hr

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a rotary furnace?

Annealing furnace

Soaking pit

Stoves

Lime kiln

TRUE ANSWER : ?
YOUR ANSWER : ?

The electric furnace in which heat is produced by a combination of induced current and skin effect is called __________ furnace.

Low frequency induction

Arc

Resistance

High frequency induction

TRUE ANSWER : ?
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Cement Kiln is a

Tunnel Kiln

Rotary Kiln

Batch furnace

Natural draft furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.

Diffusion

Premix

Rotary

Outside mixing type

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is a regenerative furnace?

Neither A nor B

Coke oven heating chamber

Open hearth furnace

Both A and B

TRUE ANSWER : ?
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Recuperator is

Not used for fuel gas preheating

Heavier than regenerator meant for the same duty

A continuous waste heat recovery equipment

An intermittant waste heat recovery equipment

TRUE ANSWER : ?
YOUR ANSWER : ?

Operation of blast furnace stove is based on the principles of a __________ furnace.

Recuperative

Regenerative

Neither A nor B

Both A and B

TRUE ANSWER : ?
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Which furnace employs natural draft?

Boiler

L.D. converter

Coke oven

Rotary kilns

TRUE ANSWER : ?
YOUR ANSWER : ?

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