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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

Caking coal is desirable for_________________?
A Burning on travelling grate
B Coke making
C Burning on firebars
D All A., B. and C.
Correct Answer: Coke making
A coal having higher volatile matter content, has lower_________________?
A Smoking tendency on burning
B Coke oven gas yield on carbonisation
C Chance of catching fire during storage in open space
D Ignition temperature
Correct Answer: Ignition temperature
Which of the following is unsuitable fuel for producer gas manufacture ?
A Coke
B Anthracite
C Coal having low fusion point of its ash
D Coal having high fusion point of its ash
Correct Answer: Coal having low fusion point of its ash
Use of preheated air for combustion of fuel in the furnace, increases the___________________?
A Scale losses of the furnace stock
B Calorific value of the fuel
C Flame temperature
D None of these
Correct Answer: Flame temperature
Which of the following is a poisonous fuel gas ?
A Coke oven gas
B Blast furnace gas
C Natural gas
D None of these
Correct Answer: Blast furnace gas
Blast furnace gas compared to coke oven gas has_________________?
A Lower ignition temperature
B Narrower limit of inflammability
C Higher calorific value
D Lower theoretical flame temperature
Correct Answer: Lower theoretical flame temperature
Which of the following has the highest calorific value (kcal/Nm3) ?
A Carburetted water gas
B Gobar gas
C Natural gas
D LPG
Correct Answer: LPG
The main function of primary air in pulverised coal fired burner is to_________________?
A Burn CO to CO2
B Dry and transport the coal
C Have proper combustion by supplying it around the burner
D Preheat the tertiary air used for complete combustion of CO to CO2
Correct Answer: Dry and transport the coal
Weathering of coal during storage causes_______________?
A Reduction in coal size
B Increase in its friability
C Decrease in its caking capacity
D All A., B. and C.
Correct Answer: All A., B. and C.
Number of macrocomponents present in coal according to Stopes are ___________________?
A Four
B Five
C Six
D Two
Correct Answer: Four
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