FURNACE TECHNOLOGY QUIZ

Thermal efficiency of furnaces can be improved by

Minimising heat losses from furnace walls

All of these

Waste heat recovery from flue gas

Maintaining proper draught

TRUE ANSWER : ?
YOUR ANSWER : ?

In producer gas making furnace, steam is added along with air to mainly control the

V. of producer gas

Fusion of coal ash & clinker formation

Temperature of producer gas

Tar content in producer gas

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is a regenerative furnace?

Neither A nor B

Coke oven heating chamber

Open hearth furnace

Both A and B

TRUE ANSWER : ?
YOUR ANSWER : ?

If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace.

Recirculating

Underfired

Covered

Sidefired

TRUE ANSWER : ?
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Large tonnage of refractory bricks are dried in a

Tunnel kiln

Muffle furnace

Rotary hearth furnace

Shaft furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.

150

100

50

250

TRUE ANSWER : ?
YOUR ANSWER : ?

The heat recoverable from flue gases of furnaces depends on the

Thermal efficiency of furnace

Flue gas temperature drop through the furnace

Quantity of flue gases

All of these

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YOUR ANSWER : ?

Which of the following is a rotary furnace?

Soaking pit

Lime kiln

Annealing furnace

Stoves

TRUE ANSWER : ?
YOUR ANSWER : ?

Which furnace employs natural draft?

Coke oven

Rotary kilns

L.D. converter

Boiler

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is a continuous furnace?

Annealing furnace

Coke ovens

None of these

Glass tank furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

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