C PROGRAMMING QUIZ

Power required in case of forced draught as compared to induced draught (for the same draught produced) is

Same

Less

Either more or less; depends on the flue gas density Answer: Option B

More

TRUE ANSWER : ?
YOUR ANSWER : ?

Unit of furnace loading is

Ton stock/hr

Ton stock/hr/m² hearth area

Ton stock/m² hearth area

Both B and C

TRUE ANSWER : ?
YOUR ANSWER : ?

An example of shaft furnace is the

L.D. converter

Soaking pit

Glass melting tank

Blast furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

The rate of scaling of furnace stock depends upon the

Time

Nature of atmosphere

All of these

Temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Shaft furnaces are used for

Calcining

Smelting

All of these

Roasting

TRUE ANSWER : ?
YOUR ANSWER : ?

Pot furnace which is either regenerative or recupterative, is used in the manufacture of

Refractory bricks

Potteries

Stainless steel

Glass

TRUE ANSWER : ?
YOUR ANSWER : ?

The amount of combustible escaping uncon-sumed from the furnace, depends upon the

All of these

Air supplied and furnace temperature

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

Burner design (thoroughness of mixing versus stratification)

TRUE ANSWER : ?
YOUR ANSWER : ?

Which is a regenerative furnace?

Both A and B

Neither A nor B

Coke oven heating chamber

Open hearth furnace

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ furnace is not an electric furnace.

Pot

Resistance

Induction

Arc

TRUE ANSWER : ?
YOUR ANSWER : ?

The resistance furnace produces heat by the

None of these

Electric arc struck between electrodes and the charge

Combination of induced current and skin effect

Flow of current through a heating element

TRUE ANSWER : ?
YOUR ANSWER : ?