FURNACE TECHNOLOGY QUIZ

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 : ?
YOUR ANSWER : ?

Which one shows the diagramatic heat balance in a furnace?

Ostwald chart

Cox chart

Sankey diagram

None of these

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 : ?

Pulverised fuel fired furnaces employ __________ fuel firing.

Tangential

All of these

Vertical

Horizontal

TRUE ANSWER : ?
YOUR ANSWER : ?

Heat balance of furnace provides means of determining the

Sources of heat losses

Scope of reduction of heat losses

All of these

Thermal efficiency of the process

TRUE ANSWER : ?
YOUR ANSWER : ?

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

80

65

20

40

TRUE ANSWER : ?
YOUR ANSWER : ?

Thermal efficiency of an open hearth furnace may be about __________ percent.

50

80

5

20

TRUE ANSWER : ?
YOUR ANSWER : ?

Example of an indirectly heated furnace is

Hood annealing furnace

Muffle furnace

Neither A nor B

Both A and B

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a heat treatment furnace?

Reheating furnace

Muffle furnace

Annealing furnace

Rotary kiln

TRUE ANSWER : ?
YOUR ANSWER : ?

Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of

Beryllium

Graphite powder

Thoria

Zircon powder

TRUE ANSWER : ?
YOUR ANSWER : ?

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