In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the All of these Thermal conductivity of the charge & structural materials of furnace Rate of firing and emissivity of flame Nature of process ; whether batch, continuous or intermittant TRUE ANSWER : ? YOUR ANSWER : ?
Large tonnage of refractory bricks are dried in a Tunnel kiln Muffle furnace Rotary hearth furnace Shaft furnace TRUE ANSWER : ? YOUR ANSWER : ?
Regenerators compared to the recuperators for the same duty Are of smaller size Occupy more space All of these Are less costly TRUE ANSWER : ? YOUR ANSWER : ?
Fuel economy in an industrial furnace operation can not be achieved by the use of Stoichiometric combustion air Non-preheated combustion air Recupterators Combustion air not enriched with oxygen TRUE ANSWER : ? YOUR ANSWER : ?
Which is not a hearth furnace? Reheating furnace Cupola Open hearth furnace Glass tank furnace TRUE ANSWER : ? YOUR ANSWER : ?
The advantages of firing pulverised coal in the furnace lies in the fact that, it Permits the use of low fusion point ash coal Accelerates the burning rate and economises on fuel consumption Permits the use of high ash content coal All of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a continuous waste heat recovery equipment from the flue gases going out of furnace? Waste heat boiler Economiser Regenerator Ceramic recuperator TRUE ANSWER : ? YOUR ANSWER : ?
If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace. Covered Recirculating Sidefired Underfired TRUE ANSWER : ? YOUR ANSWER : ?
Regenerators are used for waste heat recovery in Soaking pits Beehive coke oven By-product coke ovens Blast furnace stoves TRUE ANSWER : ? YOUR ANSWER : ?
__________ is an indirectly heated furnace. Muffle furnace Soaking pit Open hearth furnace Reheating furnace TRUE ANSWER : ? YOUR ANSWER : ?