FURNACE TECHNOLOGY QUIZ

An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace.

Tunnel

Shaft

Rotary hearth

Walking beam

TRUE ANSWER : ?
YOUR ANSWER : ?

The method of Lobo and Evans is concerned with the calculation of the

Heat transfer in vacuum condensers

Heat transfer by forced convection in a reboiler

Heat absorption in radiant section of a furnace

Mass transfer co-efficient

TRUE ANSWER : ?
YOUR ANSWER : ?

Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an

Annealing furnace

Blast furnace

Steam boiler

Salt bath furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one is not an induced draught furnace?

High pressure boiler

Sintering furnace

None of these

Blast furnace stove

TRUE ANSWER : ?
YOUR ANSWER : ?

In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the

Thermal conductivity of the charge & structural materials of furnace

Nature of process ; whether batch, continuous or intermittant

Rate of firing and emissivity of flame

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Oxygen enrichment of combustion air does not result in increase of the

Flame temperature

Stack loss

Oxygen in the flue gas

Heat transfer rate in the furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is a regenerative furnace?

Both A and B

Coke oven heating chamber

Neither A nor B

Open hearth furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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

Neither A nor B

Both A & B

Protect the charge from the effects of the products of combustion

TRUE ANSWER : ?
YOUR ANSWER : ?

Turndown ratio of a burner gives an idea of the __________ in the furnace.

Maximum heat input rate only

Minimum heat input rate only

Volume of the combustion chamber

Range of fuel firing rates

TRUE ANSWER : ?
YOUR ANSWER : ?

Heat transfer rate to the stock/charge in the furnace does not depend upon the

Use of waste heat recovery equipments

Size of the furance

Thickness of the stock

Emissivity of the refactory walls

TRUE ANSWER : ?
YOUR ANSWER : ?