FURNACE TECHNOLOGY QUIZ

Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about __________ °C.

80

180

130

250

TRUE ANSWER : ?
YOUR ANSWER : ?

Dampers are located

Before the I.D fan

Anywhere after the I.D. fan

After the I.D. fan

Near the top of the chimney

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Combustion air not enriched with oxygen

Recupterators

Non-preheated combustion air

Stoichiometric combustion air

TRUE ANSWER : ?
YOUR ANSWER : ?

A refractory wall separating the stock and the source of heat is provided in a

Muffle furnace

Continuous furnace

None of these

Updraft kiln

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ is an indirectly heated furnace.

Soaking pit

Muffle furnace

Reheating furnace

Open hearth furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Fuel economy in furnaces can be achieved by

Using oxygen enriched combustion air

All of these

Reducing the heat loss through furnace openings & doors

Preheating the combustion air

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 : ?

Which is not a hearth furnace?

Open hearth furnace

Glass tank furnace

Cupola

Reheating furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

In a furnace operation, which is not preheated?

Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.)

Solid fuels

Neither A nor B

Both A and B

TRUE ANSWER : ?
YOUR ANSWER : ?

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

20

80

50

5

TRUE ANSWER : ?
YOUR ANSWER : ?

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