Q. The electric furnace in which heat is produced by a combination of induced current and skin effect is called __________ furnace.

View solution

Q. Ingress of cold air in the furnaces through cracks, charging doors, openings etc.

View solution

Q. Use of pulverised coal in boilers provides

View solution

Q. Regenerators are normally provided in the

View solution

Q. Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.

View solution

Q. Furnace pressure is normally controlled by regulating the

View solution

Q. An example of indirectly heated furnace is the

View solution

Q. Specific heating capacity of a furnace is expressed as

View solution

Q. Forced recirculation of furnace gases is practised

View solution

Q. Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the

View solution

Q. Air filtration in a furnace

View solution

Q. Which of the following is the most important deterrants to an extended use of pulverised coal in boiler firing ?

View solution

Q. Which of the following is a periodic furnace?

View solution

Q. Test specimen for determination of refractoriness under load (RUL) of a refractory is heated in a

View solution

Q. Regenerators compared to the recuperators for the same duty

View solution

Q. Regenerators are used for waste heat recovery in

View solution

Q. Which of the following furnaces will have maximum thermal efficiency ?

View solution

Q. Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an

View solution

Q. Dampers are located

View solution

Q. Protective gas used in the annealing furnace for steel coil comprises of

View solution