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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 adsorbent is used for removing sulphur compounds (S Q, H2S, RSH etc.) removal from coke oven gas in by-products recovery plant ?
A Silica gel
B Diatomaceous earth
C Basalt
D Bog iron (i.e., moist ferric hydroxide)
Correct Answer: Bog iron (i.e., moist ferric hydroxide)
Which of the following fuels has the highest calorific value per unit mass (kcal/kg) ?
A Coal
B Kerosene
C Natural gas
D Furnace oil
Correct Answer: Furnace oil
Fusion point of coal ash generally varies from 1000 to 1700° C. Ash having fusion point less than _______________ °C is liable to form clinker?
A 1100
B 1250
C 1350
D 1400
Correct Answer: 1100
The calorific value of natural gas is about ______________ kcal/Nm3?
A 10,000
B 2,500
C 25,000
D 35,000
Correct Answer: 10,000
High amount of sulphur and phosphorous in coke causes ____________________ ?
A Decrease in its calorific value
B Increase in its strength
C Brittleness of steel made by using it
D None of these
Correct Answer: Brittleness of steel made by using it
A coal containing high amount of volatile matter will have__________________?
A Low ignition temperature
B Very little ash content
C High fusion point of its ash
D Low adiabatic flame temperature
Correct Answer: Low ignition temperature
Coke oven gas is a better fuel than blast furnace gas, because of its higher________________?
A Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity)
B Adiabatic flame temperature
C Heat release rate (thus requiring smaller combustion chamber)
D All A., B. and C.
Correct Answer: All A., B. and C.
Which of the following is not a micro component present in coal ?
A Micrinite
B Clarain
C Fusinite
D Liptinite
Correct Answer: Clarain
Which of the following would require maximum amount of % excess air for complete combustion ?
A Coke oven gas
B Furnace oil
C Pulverised coal
D Lump coal (fixed on chain grate)
Correct Answer: Lump coal (fixed on chain grate)
Coking time in a commercial high temperature coal carbonisation plant is about ______________ hours?
A 6
B 18
C 28
D 36
Correct Answer: 18
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