FURNACE TECHNOLOGY QUIZ

Muffle furnace

Neither A nor B

Both A and B

Hood annealing furnace

Maintaining proper draught

Minimising heat losses from furnace walls

All of these

Waste heat recovery from flue gas

Open hearth furnace

Soaking pit

Reheating furnace

Cupola

Furnace oil

Pulverised coal

Blast furnace gas/mixed gas

Coke oven gas

Rotary kiln

Soaking pit

Tunnel kiln

Reheating furnace

Use of non-preheated combustion air

Use of excessive positive draft in the furnace

Use of pulverised solid fuels

Imperfect mixing of fuel & air and infiltration of air

Burner design (thoroughness of mixing versus stratification)

Air supplied and furnace temperature

All of these

Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction)

Weight heated/hr/furnace volume

None of these

Weight heated/hr

Weight heated/furnace volume

Conduction

Radiation of heat from the roof of the combustion chamber

Natural convection

None of these

Quantity & temperature of waste gas

Dust concentration & nature of dust in waste gas

All of these

Corrosive nature of the waste gas