Scaling of furnace stock is reduced by _______________ in flue gas?
Scaling of furnace stock is reduced by _______________ in flue gas?
A. CO
B. H2
C. High CO/CO2
D. All A., B. & C.
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Example of an indirectly heated furnace is__________________?
Example of an indirectly heated furnace is__________________?A. Hood annealing furnace
B. Muffle furnace
C. Both A. and B.
D. Neither A. nor B.Maximum thermal efficiency of boiler may be about __________ percent.
Question: Maximum thermal efficiency of boiler may be about __________ percent.
[A].10 [B].
25 [C].
65 [D].
90 Answer: Option D
Explanation:
No answer description available for this question.
Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by______________________?
Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by______________________?A. Preheating the combustion air
B. Oxygen enrichment of combustion air
C. Preheating the fuel gas
D. All A., B. & C.In a heating process, a heat flow diagram in which the quantities of heat in the various items of a heat balance are represented by the width of a band is called the
Question: In a heating process, a heat flow diagram in which the quantities of heat in the various items of a heat balance are represented by the width of a band is called the
[A].Ostwald chart [B].
Cox chart [C].
Sankey diagram [D].
none of these Answer: Option C
Explanation:
No answer description available for this question.
Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an__________________?
Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an__________________?A. Blast furnace
B. Steam boiler
C. Salt bath furnace
D. Annealing furnaceWhich of the following is the most suitable for preheating combustion air above 650°C ?
Which of the following is the most suitable for preheating combustion air above 650°C ?A. Regenerator
B. Metallic recuperator
C. Ceramic recuperator
D. None of these