The rate of scaling of furnace stock depends upon the Time All of these Nature of atmosphere Temperature TRUE ANSWER : ? YOUR ANSWER : ?
Combustion of fuel in a furnace with oxygen enriched air results in higher Stack loss Flame temperature Flue gas volume Fuel consumption TRUE ANSWER : ? YOUR ANSWER : ?
Specific heating capacity of a furnace is expressed as Weight heated/hr/furnace volume Weight heated/furnace volume None of these Weight heated/hr TRUE ANSWER : ? YOUR ANSWER : ?
Overfire burning in a furnace is a phenomenon characterised by None of these Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess fuel Supply of excess air TRUE ANSWER : ? YOUR ANSWER : ?
Rate of heat release in a furnace, which is the measure of heat intensity is defined as None of these Kcal/hr/m³ combustion space Kcal/m³ combustion space Kcal/hr TRUE ANSWER : ? YOUR ANSWER : ?
In which of the following furnaces, the gases are sucked through the stock bed from below? Beehive oven Sintering machine Soaking pit None of these TRUE ANSWER : ? YOUR ANSWER : ?
The reason for excessive clinker formation in gas producers is the Development of hot spots in the fuel bed and an abnormally high rate of gasification All of these Use of fuel having too low an ash fusion temperature Use of coal/coke containing a high % of fines and ash TRUE ANSWER : ? YOUR ANSWER : ?
Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent. 80 60 40 20 TRUE ANSWER : ? YOUR ANSWER : ?
Thermal efficiency of an open hearth furnace may be about __________ percent. 80 50 20 5 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 Sidefired Underfired Recirculating TRUE ANSWER : ? YOUR ANSWER : ?