Which of the following is a heat treatment furnace? Reheating furnace Annealing furnace Rotary kiln Muffle furnace TRUE ANSWER : ? YOUR ANSWER : ?
Hearth furnaces are not used for Reheating None of these Roasting Melting TRUE ANSWER : ? YOUR ANSWER : ?
Tunnel kilns are usually used for Reheating of slabs Melting of glass Drying/tempering of refractories Roasting of pyrites 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 Can not be predicted Radiation Convection Conduction TRUE ANSWER : ? YOUR ANSWER : ?
Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an Annealing furnace Blast furnace Steam boiler Salt bath furnace TRUE ANSWER : ? YOUR ANSWER : ?
In salt bath furnace, heat is transferred to the charge mainly by Radiation Convection Conduction None of these TRUE ANSWER : ? YOUR ANSWER : ?
Example of an indirectly heated furnace is Hood annealing furnace Neither A nor B Both A and B Muffle furnace TRUE ANSWER : ? YOUR ANSWER : ?
An example of a periodic furnace is the Rotary kilns Coke oven heating chamber Blast furnace stoves Blast furnace TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a batch furnace? Reheating furnace None of these Glass tank furnace Cupola TRUE ANSWER : ? YOUR ANSWER : ?
The function of an economiser in a boiler is to preheat the Furnace oil Pulverised coal Feedwater Combustion air TRUE ANSWER : ? YOUR ANSWER : ?