The main function of a muffle in the muffle furnace is to Protect the charge from the effects of the products of combustion Smooth out temperature inequalities on the combustion side of the muffle wall Neither A nor B Both A & B TRUE ANSWER : ? YOUR ANSWER : ?
Heat transfer rate to the charge/stock in a furnace does not depend upon the Flue gas temperature Initial temperature of the charged stock Type of fuels viz solid, liquid or gaseous Emissivity of refractory walls TRUE ANSWER : ? YOUR ANSWER : ?
Reheating furnace (pusher type) is used for heating Slabs Ingots Steel coils Steel sheets TRUE ANSWER : ? YOUR ANSWER : ?
The resistance furnace produces heat by the Flow of current through a heating element Electric arc struck between electrodes and the charge None of these Combination of induced current and skin effect TRUE ANSWER : ? YOUR ANSWER : ?
Which is a continuous furnace? Coke ovens None of these Annealing furnace Glass tank furnace TRUE ANSWER : ? YOUR ANSWER : ?
Rate of heat release in a furnace, which is the measure of heat intensity is defined as Kcal/hr None of these Kcal/hr/m³ combustion space Kcal/m³ combustion space TRUE ANSWER : ? YOUR ANSWER : ?
Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent. 20 80 60 40 TRUE ANSWER : ? YOUR ANSWER : ?
In a heating process, a heat flow diagram in which the quantities of heat in the various items of a heat balance are represented by the width of a band is called the None of these Ostwald chart Sankey diagram Cox chart TRUE ANSWER : ? YOUR ANSWER : ?
Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of Blast furnace gas with oxygen Furnace oil with oxygen Blast furnace gas with air Furnace oil with air TRUE ANSWER : ? YOUR ANSWER : ?
The heating capacity of continuous reheating furnace depends upon the Hearth area and furnace temperature All of these Emissivity of the stock Ratio of wall surface to stock surface TRUE ANSWER : ? YOUR ANSWER : ?