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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

Which one is not an induced draught furnace ?
A Blast furnace stove
B Sintering furnace
C High pressure boiler
D None of these
Correct Answer: Blast furnace stove
Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of_________________?
A Graphite powder
B Thoria
C Zircon powder
D Beryllium
Correct Answer: Zircon powder
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 furnace
Correct Answer: Salt bath furnace
Reducing atmosphere is maintained in a__________________?
A Calcination kiln
B Blast furnace
C Soaking pit
D L.D. converter
Correct Answer: Blast furnace
The amount of combustible escaping unconsumed from the furnace, depends upon the________________?
A Air supplied and furnace temperature
B Burner design (thoroughness of mixing versus stratification)
C Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by
D All A., B. and C.
Correct Answer: All A., B. and C.
Heat transfer rate to the charge/stock in a furnace does not depend upon the________________?
A Type of fuels viz. solid, liquid or gaseous
B Flue gas temperature
C Emissivity of refractory walls
D Initial temperature of the charged stock
Correct Answer: Type of fuels viz. solid, liquid or gaseous
Higher furnace temperature cannot be achieved by use of a lean fuel gas in the furnace by_________________?
A Increasing the draft in the furnace
B Preheating the fuel gas
C Oxygen enrichment of combustion air
D Preheating the combustion air
Correct Answer: Increasing the draft in the furnace
Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about ____________ percent?
A 10-15
B 25-30
C 45-50
D 65-70
Correct Answer: 25-30
An example of recuperative furnace is the__________________?
A Soaking pit
B Open hearth furnace
C Coke ovens
D None of these
Correct Answer: Soaking pit
In a furnace employing forced draught as compared to induced draught______________________?
A Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced
B The fan operates hot and hence blades are liable to corrosion and erosion
C Positive pressure exists in the furnace
D None of these
Correct Answer: Positive pressure exists in the furnace
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