MICROWAVE COMMUNICATION QUIZ

In a furnace operation, which is not preheated?

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

Neither A nor B

Solid fuels

Both A and B

TRUE ANSWER : ?
YOUR ANSWER : ?

Pot furnace which is either regenerative or recupterative, is used in the manufacture of

Refractory bricks

Stainless steel

Glass

Potteries

TRUE ANSWER : ?
YOUR ANSWER : ?

Combustion of fuel in a furnace with oxygen enriched air results in higher

Flame temperature

Fuel consumption

Flue gas volume

Stack loss

TRUE ANSWER : ?
YOUR ANSWER : ?

Fuel economy in furnaces can be achieved by

Preheating the combustion air

All of these

Using oxygen enriched combustion air

Reducing the heat loss through furnace openings & doors

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one is not an induced draught furnace?

Sintering furnace

None of these

Blast furnace stove

High pressure boiler

TRUE ANSWER : ?
YOUR ANSWER : ?

Regenerators as compared to recuperators for the same duty

Involve higher initial cost

Store smaller quantity of waste heat

All of these

Are lighter & compact

TRUE ANSWER : ?
YOUR ANSWER : ?

Soaking pits are meant for heating steel

Coils

Sheets

Ingots

Slabs

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a rotary furnace?

Annealing furnace

Lime kiln

Stoves

Soaking pit

TRUE ANSWER : ?
YOUR ANSWER : ?

Reducing atmosphere is maintained in a

L.D. converter

Soaking pit

Blast furnace

Calcination kiln

TRUE ANSWER : ?
YOUR ANSWER : ?

Reheating furnace (pusher type) is used for heating

Ingots

Steel coils

Slabs

Steel sheets

TRUE ANSWER : ?
YOUR ANSWER : ?

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