FURNACE TECHNOLOGY QUIZ

Hearth furnaces are not used for

None of these

Reheating

Roasting

Melting

TRUE ANSWER : ?
YOUR ANSWER : ?

Regenerators are normally provided in the

Glass melting furnace

Open hearth furnace

By product coke ovens

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The main function of a muffle in the muffle furnace is to

Smooth out temperature inequalities on the combustion side of the muffle wall

Neither A nor B

Protect the charge from the effects of the products of combustion

Both A & B

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is not accomplished in an underfired furnace?

Portection of the periphery of the charge from excessive radiation

Elimination of cold spot at the bottom of the charge

Increase in heating capacity/m² of floor space

Reduction in the temperature of furnace gases

TRUE ANSWER : ?
YOUR ANSWER : ?

Large tonnage of refractory bricks are dried in a

Shaft furnace

Muffle furnace

Tunnel kiln

Rotary hearth furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Recuperator is

Heavier than regenerator meant for the same duty

Not used for fuel gas preheating

A continuous waste heat recovery equipment

An intermittant waste heat recovery equipment

TRUE ANSWER : ?
YOUR ANSWER : ?

Which furnace employs preheating, heating and soaking zones?

Reheating furnace

Cupola

Open hearth furnace

Soaking pit

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Preheating of cold stock

Steam generation in waste heat boilers

All of these

Preheating of combustion air

TRUE ANSWER : ?
YOUR ANSWER : ?

Pulverised fuel fired furnaces employ __________ fuel firing.

Tangential

Horizontal

All of these

Vertical

TRUE ANSWER : ?
YOUR ANSWER : ?

Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the

Quantity & temperature of waste gas

Corrosive nature of the waste gas

Dust concentration & nature of dust in waste gas

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?