M C Q s D r i v e

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.

Which of the following is a primary fuel ?
A Blast furnace coke
B Gasoline
C Natural gas
D Wood charcoal
Correct Answer: Natural gas
Coking time in narrow by-product coke ovens is around ______________ hours?
A 18
B 48
C 8
D 80
Correct Answer: 18
Too much of excess air in combustion results in high___________________?
A Fuel consumption for the same heat load
B Stack gas temperature
C Percentage of oxygen in flue gases
D All A., B. and C.
Correct Answer: All A., B. and C.
Washing of coal is done to reduce the_________________?
A Inherent impurities
B Adhering impurities
C Mineral matter
D Both B. and C.
Correct Answer: Both B. and C.
Efficient burning of anthracite coal requires______________________?
A Low preheat of air
B Fine grinding
C High excess air
D All A., B. and C
Correct Answer: Fine grinding
Water gas constitutes mainly of __________________?
A CO & H2
B CO & N2
C CO2 & H2
D CH4 & H2
Correct Answer: CO & H2
Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the_______________?
A Hot scarfing of steel slabs
B Mixing with blast furnace gas
C Coke oven battery heating
D Steel ladle drying
Correct Answer: Coke oven battery heating
Benzene is used__________________?
A As a motor fuel
B As an explosive
C For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR)
D As a perfume
Correct Answer: For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR)
Which of the following constituents of a fuel does not contribute to its calorific value on combustion ?
A Hydrogen
B Sulphur
C Carbon
D None of these
Correct Answer: None of these
High temperature carbonisation of coal produces__________________?
A Inferior coke compared to low temperature carbonisation
B Less of gases compared to liquid products
C Large quantity of tar compared to low temperature carbonisation
D None of these
Correct Answer: None of these