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Furnace Technology

Furnace Technology
Which of the following is not a recuperative furnace?

Steamboiler
Coke oven
Soaking pit
Reheating furnace

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Furnace Technology
Blast furnace stoves are meant for heating

Air
None of these
Steam
Blast furnace gas

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Furnace Technology
Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent.

25-30
44119
45-50
65-70

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Furnace Technology
Unit of furnace loading is

Ton stock/hr
Ton stock/m² hearth area
Both B and C
Ton stock/hr/m² hearth area

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Furnace Technology
Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the

Type of burner and combustion chamber
Physical nature, ash content and fineness of the coal
Amount of excess air supplied and load on the boiler
All of these

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Furnace Technology
Main gas valve in a gaseous fuel burner is a __________ valve.

Butterfly
Globe
Gate
None of these

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