Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of Zircon powder Beryllium Graphite powder Thoria TRUE ANSWER : ? YOUR ANSWER : ?
Specific heating capacity of a furnace is expressed as Weight heated/hr/furnace volume None of these Weight heated/furnace volume Weight heated/hr TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a rotary furnace? Annealing furnace Soaking pit Stoves Lime kiln TRUE ANSWER : ? YOUR ANSWER : ?
The electric furnace in which heat is produced by a combination of induced current and skin effect is called __________ furnace. Low frequency induction Arc Resistance High frequency induction TRUE ANSWER : ? YOUR ANSWER : ?
Cement Kiln is a Tunnel Kiln Rotary Kiln Batch furnace Natural draft furnace TRUE ANSWER : ? YOUR ANSWER : ?
If fuel and air are mixed ahead of the burner, it is called a/an __________ burner. Diffusion Premix Rotary Outside mixing type TRUE ANSWER : ? YOUR ANSWER : ?
Which is a regenerative furnace? Neither A nor B Coke oven heating chamber Open hearth furnace Both A and B TRUE ANSWER : ? YOUR ANSWER : ?
Recuperator is Not used for fuel gas preheating Heavier than regenerator meant for the same duty A continuous waste heat recovery equipment An intermittant waste heat recovery equipment TRUE ANSWER : ? YOUR ANSWER : ?
Operation of blast furnace stove is based on the principles of a __________ furnace. Recuperative Regenerative Neither A nor B Both A and B TRUE ANSWER : ? YOUR ANSWER : ?
Which furnace employs natural draft? Boiler L.D. converter Coke oven Rotary kilns TRUE ANSWER : ? YOUR ANSWER : ?