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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

Advantages of fluidised bed combustion are ____________________?
A Reduced NOx formation in flue gas
B Lower furnace operating temperature
C High heat transfer rate
D All A., B. & C.
Correct Answer: All A., B. & C.
The main reason for making the copper calorimeter (used in bomb calorimeter) silvery white and shining/polished is to___________________?
A Minimise its corrosion
B Avoid radiation heat loss
C Make it look attractive
D None of these
Correct Answer: Avoid radiation heat loss
Desirable “Micum Index” values of metallurgical coke are ___________________?
A M40 > 78% and M10 < 10%
B M40 > 4% and M10 10% and M10 98% and M10 < 2%
C
D
Correct Answer: M40 > 78% and M10 < 10%
Which of the following fuels is the best for burning on chain grate stoker ?
A Non-caking coal
B Caking coal
C Coking coal
D Pulverised coal
Correct Answer: Non-caking coal
“Overfire burning” in a furnace is a phenomenon characterised by the __________________?
A Supply of excess fuel
B Supply of excess air
C Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying
D None of these
Correct Answer: Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying
A coal gasifier operating at 20 atm. (e.g. Lurgi gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having _____________________?
A Higher methane content and thus higher calorific value
B Higher carbon monoxide content
C Lower carbon dioxide content
D None of these
Correct Answer: Higher methane content and thus higher calorific value
For every 10% increase in the excess air; the fuel consumption increases by _______________ percent?
A 0.1
B 0.2
C 0.5
D 1.0
Correct Answer: 0.1
Main use of hard coke produced by high temperature carbonisation is in the ____________________ ?
A Iron blast furnace
B Cupola in foundries
C Sinter making
D Domestic ovens
Correct Answer: Iron blast furnace
Percentage of carbon monoxide in blast furnace gas may be around ____________________ ?
A 8
B 14
C 22
D 52
Correct Answer: 22
Which is the most matured coal ?
A Lignite
B Bituminous
C Semi-anthracite
D Anthracite
Correct Answer: Anthracite
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