FURNACE TECHNOLOGY QUIZ

Blast furnace stoves are meant for heating

Blast furnace gas

None of these

Air

Steam

TRUE ANSWER : ?
YOUR ANSWER : ?

Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C.

40

60

5

20

TRUE ANSWER : ?
YOUR ANSWER : ?

hich is the most thermally efficient furnace?

Rotary kilns

Reverberatory furnace

Boiler furnace

Reheating furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Specific heating capacity of a furnace is expressed as

Weight heated/hr/furnace volume

Weight heated/furnace volume

Weight heated/hr

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Fuel consumption

Flue gas volume

Flame temperature

Stack loss

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Muffle furnace

Continuous furnace

Updraft kiln

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a heat treatment furnace?

Rotary kiln

Muffle furnace

Annealing furnace

Reheating furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Large tonnage of refractory bricks are dried in a

Tunnel kiln

Muffle furnace

Shaft furnace

Rotary hearth furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

The heating capacity of continuous reheating furnace depends upon the

All of these

Ratio of wall surface to stock surface

Hearth area and furnace temperature

Emissivity of the stock

TRUE ANSWER : ?
YOUR ANSWER : ?

Ostwald charts are meant for

None of these

Calculation of flue gas temperature

Computation of flue gas analysis

Computing the excess/deficiency of combustion air

TRUE ANSWER : ?
YOUR ANSWER : ?

↑