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

View solution

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

View solution

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

View solution

Q. Which is not accomplished in an underfired furnace ?

View solution

Q. The advantages of firing pulverised coal in the furnace lies in the fact that, it

View solution

Q. 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.

View solution

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

View solution

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

View solution

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

View solution

Q. If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace.

View solution

Q. Furnace aerodynamics is related to the __________ in the furnace.

View solution

Q. Circulation of gases in furnace is caused by the

View solution

Q. Regenerators as compared to recuperators for the same duty

View solution

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

View solution

Q. Main gas valve in a gaseous fuel burner is a __________ valve.

View solution

Q. The rate of scaling of furnace stock depends upon the

View solution

Q. Reheating furnace (pusher type) is used for heating

View solution

Q. Size of the combustion chamber of a furnace depends upon the

View solution

Q. Which of the following is not a recuperative furnace ?

View solution

Q. Presence of SO₂ in furnace gases attacks the ferrous metal by way of

View solution