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.Management Sciences
Category: Furnace Technology
Fuel used in B.F. stove is______________________?
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A. Pulverised coal
B. Furnace oil
C. Blast furnace gas/mixed gas
D. Coke oven gas
A refractory wall separating the stock and the source of heat is provided in a__________________?
A. Updraft kiln
B. Muffle furnace
C. Continuous furnace
D. None of these
Example of an indirectly heated furnace is__________________?
A. Hood annealing furnace
B. Muffle furnace
C. Both A. and B.
D. Neither A. nor B.
The heating capacity of muffle furnace depends on the_________________?
A. Surface area & emissivity of the stock
B. Properties of the muffle wall (temperature, area, and emissivity)
C. Both A. & B.
D. Neither A. nor B.
Which of the following is a periodic furnace ?
A. Tunnel kiln
B. Rotary kiln
C. Soaking pit
D. Reheating furnace
Which is not a hearth furnace ?
A. Glass tank furnace
B. Open hearth furnace
C. Cupola
D. Reheating furnace
Which of the following is not a directly fired furnace ?
A. By-product coke oven
B. Calcination kiln
C. Sintering furnace
D. Open hearth furnace
_____________ atmosphere is maintained inside an iron blast furnace?
A. Oxidising
B. Reducing
C. Inert
D. Decarburising
The rate of scaling of furnace stock depends upon the_________________?
A. Temperature
B. Time
C. Nature of atmosphere
D. All A., B. and C.
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