FURNACE TECHNOLOGY QUIZ

Which of the following is a rotary furnace?

Soaking pit

Stoves

Annealing furnace

Lime kiln

TRUE ANSWER : ?
YOUR ANSWER : ?

In which of the following furnaces, the gases are sucked through the stock bed from below?

Beehive oven

Soaking pit

None of these

Sintering machine

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following furnaces will have maximum thermal efficiency?

Walking beam reheating furnace

Boiler furnace

Rotary kilns

Soaking pits

TRUE ANSWER : ?
YOUR ANSWER : ?

Rotary kilns are used in the

Cement manufacture

Neither A nor B

Both A and B

Calcination of limestone & dolomite

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ atmosphere is maintained inside an iron blast furnace.

Reducing

Oxidising

Inert

Decarburising

TRUE ANSWER : ?
YOUR ANSWER : ?

Low stack loss indicates the

Inefficient use of fuel

Oxygen enrichment of combustion air

Efficient use of fuel

Use of sub-stoichiometric air for combustion

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a batch furnace?

Reheating furnace

Cupola

None of these

Glass tank furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

The purpose of controlling the furnace atmosphere is to prevent surface attack by

Either of the above

Decarburising

Oxidation/scaling

Sulphur penetration

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is not a hearth furnace?

Reheating furnace

Open hearth furnace

Cupola

Glass tank furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent.

< 8

< 5

< 10

< 2

TRUE ANSWER : ?
YOUR ANSWER : ?

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