A. 350
B. 750
C. 1050
D. 1250
A. Use of non-preheated combustion air
B. Use of pulverised solid fuels
C. Imperfect mixing of fuel & air and infiltration of air
D. Use of excessive positive draft in the furnace
A. Muffle furnace
B. Annealing furnace
C. Reheating furnace
D. Rotary kiln
Which of the following is a heat treatment furnace ? Read More »
Furnace Technology A. Heat release rate of the fuel
B. Preheat temperature of fuel & air
C. Method of mixing the fuel & air
D. All A., B. and C.
Size of the combustion chamber of a furnace depends upon the ___________________? Read More »
Furnace Technology A. Preheating of cold stock
B. Preheating of combustion air
C. Steam generation in waste heat boilers
D. All A., B. and C.
A. Arc
B. Induction
C. Pot
D. Resistance
_____________ furnace is not an electric furnace? Read More »
Furnace Technology A. Permits the use of high ash content coal
B. Permits the use of low fusion point ash coal
C. Accelerates the burning rate and economises on fuel consumption
D. All A., B. and C.
A. Reheating furnace
B. Reverberatory furnace
C. Rotary kilns
D. Boiler furnace
Which is the most thermally efficient furnace _______________________? Read More »
Furnace Technology A. Reduces the flue gas temperature and makes the furnace atmosphere oxidising
B. Increases the load on the induced draft fan
C. Reduces the furnace draught
D. All A., B. and C.
A. Using oxygen enriched combustion air
B. Preheating the combustion air
C. Reducing the heat loss through furnace openings & doors
D. All A., B. and C.
Fuel economy in furnaces can be achieved by_________________? Read More »
Furnace Technology