FURNACE TECHNOLOGY QUIZ

Fuel economy in an industrial furnace operation can not be achieved by the use of

Stoichiometric combustion air

Combustion air not enriched with oxygen

Non-preheated combustion air

Recupterators

TRUE ANSWER : ?
YOUR ANSWER : ?

Cement Kiln is a

Tunnel Kiln

Natural draft furnace

Rotary Kiln

Batch furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

The method of Lobo and Evans is concerned with the calculation of the

Heat transfer in vacuum condensers

Heat transfer by forced convection in a reboiler

Mass transfer co-efficient

Heat absorption in radiant section of a furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Heat transfer rate to the charge/stock in a furnace does not depend upon the

Initial temperature of the charged stock

Type of fuels viz solid, liquid or gaseous

Emissivity of refractory walls

Flue gas temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent.

80

40

65

20

TRUE ANSWER : ?
YOUR ANSWER : ?

Heat transfer rate to the stock/charge in the furnace does not depend upon the

Size of the furance

Thickness of the stock

Emissivity of the refactory walls

Use of waste heat recovery equipments

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not an additive for flue gases from furnace to reduce its dew-point?

Alkaline powders

Fine dolomite

Ammonia

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Neither A nor B

Regenerative

Both A and B

Recuperative

TRUE ANSWER : ?
YOUR ANSWER : ?

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

< 8

< 2

< 5

< 10

TRUE ANSWER : ?
YOUR ANSWER : ?

Regenerators are normally provided in the

All of these

Open hearth furnace

Glass melting furnace

By product coke ovens

TRUE ANSWER : ?
YOUR ANSWER : ?

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