FURNACE TECHNOLOGY QUIZ

In order to maintain a reducing atmosphere in a furnace, it should have

No O₂ in flue gas

None of these

High excess air

CO in flue gas

TRUE ANSWER : ?
YOUR ANSWER : ?

Which furnace employs an I.D. fan for the removal of flue gases from the furnace?

Beehive coke oven

Coke oven

Blast furnace stoves

High pressure boiler

TRUE ANSWER : ?
YOUR ANSWER : ?

Maximum heat transfer in high temperature furnaces is by

Radiation

Convection

Conduction

Either A, B or C; depends on the type of furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Use of pulverised coal in boilers provides

Higher calorific value

Better combustion

Less erosion on furnace wall

Smokeless burning

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a continuous waste heat recovery equipment from the flue gases going out of furnace?

Regenerator

Ceramic recuperator

Waste heat boiler

Economiser

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Muffle furnace

Updraft kiln

Continuous furnace

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

An example of a periodic furnace is the

Coke oven heating chamber

Blast furnace

Blast furnace stoves

Rotary kilns

TRUE ANSWER : ?
YOUR ANSWER : ?

Neutral atmosphere is maintained in a/an __________ furnace.

Soaking pit

Walking beam reheating

Cold rolled steel coil annealing

Open hearth

TRUE ANSWER : ?
YOUR ANSWER : ?

The main function of a muffle in the muffle furnace is to

Protect the charge from the effects of the products of combustion

Neither A nor B

Smooth out temperature inequalities on the combustion side of the muffle wall

Both A & B

TRUE ANSWER : ?
YOUR ANSWER : ?

Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an

Air preheater

Steam superheater

All of these

Economiser

TRUE ANSWER : ?
YOUR ANSWER : ?

↑