FURNACE TECHNOLOGY QUIZ

In salt bath furnace, heat is transferred to the charge mainly by

Conduction

Radiation

None of these

Convection

TRUE ANSWER : ?
YOUR ANSWER : ?

Hearth furnaces are not used for

Melting

None of these

Reheating

Roasting

TRUE ANSWER : ?
YOUR ANSWER : ?

Operation of blast furnace stove is based on the principles of a __________ furnace.

Neither A nor B

Recuperative

Regenerative

Both A and B

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a recuperative furnace?

Steamboiler

Soaking pit

Coke oven

Reheating furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Regenerators are normally provided in the

Open hearth furnace

By product coke ovens

Glass melting furnace

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Rate of heat release in a furnace, which is the measure of heat intensity is defined as

None of these

Kcal/hr

Kcal/hr/m³ combustion space

Kcal/m³ combustion space

TRUE ANSWER : ?
YOUR ANSWER : ?

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 : ?

Regenerators compared to the recuperators for the same duty

All of these

Are of smaller size

Occupy more space

Are less costly

TRUE ANSWER : ?
YOUR ANSWER : ?

Blast furnace stoves are meant for heating

Steam

Blast furnace gas

Air

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the most important deterrants to an extended use of pulverised coal in boiler firing?

Excessive fly ash discharge from the stack

Higher power consumption in its transportation

Erosion of induced draft fan blades

Ash disposal problem

TRUE ANSWER : ?
YOUR ANSWER : ?

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