FURNACE TECHNOLOGY QUIZ

If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.

Diffusion

Outside mixing type

Premix

Rotary

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a periodic furnace?

Soaking pit

Reheating furnace

Tunnel kiln

Rotary kiln

TRUE ANSWER : ?
YOUR ANSWER : ?

Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by

Preheating the fuel gas

Preheating the combustion air

All of these

Oxygen enrichment of combustion air

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following variables does not affect the furnace capacity?

Size of the furnace

Gas velocity in furnace

Ratio of wall surface to surface of stock

None of these

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YOUR ANSWER : ?

Thickness of stock does not affect the fuel economy of furnaces, if the material to be heated is of

High thermal conductivity

Low emissivity

Both A and B

Neither A nor B

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YOUR ANSWER : ?

Soaking pits are meant for heating steel

Slabs

Ingots

Sheets

Coils

TRUE ANSWER : ?
YOUR ANSWER : ?

Main gas valve in a gaseous fuel burner is a __________ valve.

Globe

Gate

None of these

Butterfly

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the most suitable for preheating combustion air above 650°C ?

Metallic recuperator

None of these

Regenerator

Ceramic recuperator

TRUE ANSWER : ?
YOUR ANSWER : ?

Regenerators are installed in

Coke ovens

Both A & B

Neither A nor B

Open hearth furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a batch furnace?

None of these

Glass tank furnace

Reheating furnace

Cupola

TRUE ANSWER : ?
YOUR ANSWER : ?

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