Q.1.
The advantages of firing pulverised coal in the furnace lies in the fact that, it
Q.2.
Low stack loss indicates the
Q.3.
The rate of scaling of furnace stock depends upon the
Q.4.
Which of the following is the most suitable for preheating combustion air above 650°C ?
Q.5.
Which of the following is a natural draft furnace?
Q.6.

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

Q.7.

Which of the following variables affects the furnace capacity ?

Q.8.

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

Q.9.

In which of the following furnaces, the gases are sucked through the stock bed from below?

Q.10.

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

Q.11.

Recuperator is

Q.12.

Which is not accomplished in an underfired furnace ?

Q.13.

Which of the following is not a recuperative furnace ?

Q.14.

Fuel economy in an industrial furnace operation can not be achieved by the use of

Q.15.

Artificial draught produced by a fan in the furnace can be controlled by the

Q.16.

The resistance furnace produces heat by the

Q.17.

In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of

Q.18.

Size of the combustion chamber of a furnace depends upon the

Q.19.

Pick out the wrong statement.

Q.20.

The function of an economiser in a boiler is to preheat the

Q.21.

Regenerators as compared to recuperators for the same duty

Q.22.

Blast furnace stoves are meant for heating

Q.23.

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

Q.24.

Which of the following variables does not affect the furnace capacity ?

Q.25.

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

Q.26.

While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C.

Q.27.

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

Q.28.

Reheating furnace (pusher type) is used for heating

Q.29.

Which one is not an induced draught furnace?

Q.30.

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