Recuperator is An intermittant waste heat recovery equipment Not used for fuel gas preheating Heavier than regenerator meant for the same duty A continuous waste heat recovery equipment TRUE ANSWER : ? YOUR ANSWER : ?
Which furnace employs an I.D. fan for the removal of flue gases from the furnace? Coke oven High pressure boiler Beehive coke oven Blast furnace stoves TRUE ANSWER : ? YOUR ANSWER : ?
Heat transfer rate to the stock/charge in the furnace does not depend upon the Emissivity of the refactory walls Use of waste heat recovery equipments Thickness of the stock Size of the furance TRUE ANSWER : ? YOUR ANSWER : ?
In order to maintain an oxidising atmosphere in a furnace, it should have Less of excess air More of CO in flue gas More of CO₂ in flue gas More of excess air TRUE ANSWER : ? YOUR ANSWER : ?
The method of Lobo and Evans is concerned with the calculation of the Mass transfer co-efficient Heat absorption in radiant section of a furnace Heat transfer in vacuum condensers Heat transfer by forced convection in a reboiler TRUE ANSWER : ? YOUR ANSWER : ?
__________ furnace is not an electric furnace. Resistance Pot Induction Arc TRUE ANSWER : ? YOUR ANSWER : ?
In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by Convection Radiation Can not be predicted Conduction TRUE ANSWER : ? YOUR ANSWER : ?
Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 44119 25-30 45-50 65-70 TRUE ANSWER : ? YOUR ANSWER : ?
Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about __________ °C. 130 180 80 250 TRUE ANSWER : ? YOUR ANSWER : ?
Artificial draught produced by a fan in the furnace can be controlled by the Speed of the fan Damper Variation in the pitch of fan blades All of these TRUE ANSWER : ? YOUR ANSWER : ?