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.

Flue gas from the heating chamber of by product coke ovens is removed by________________?
A Forced draft fan
B Induced draft fan
C Steam ejector
D Natural draft
Correct Answer: Natural draft
Mineral matter, ‘M’ and ash percentage ‘A’ in coal are roughly related as_______________?
A M = 1.8 A
B M = 0.5 A
C M = 1.1 A
D M = A
Correct Answer: M = 1.1 A
Calorific value of dry wood may be around ______________ Kcal/kg?
A 5
B 50
C 500
D 5000
Correct Answer: 5
Combustion of pulverised coal as compared to that of lump coal ________________?
A Develops a non-luminous flame
B Develops a low temperature flame
C Can be done with less excess air
D Provides a lower rate of heat release
Correct Answer: Can be done with less excess air
During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the _______________ of the mass?
A Density
B Porosity
C Electrical resistivity
D None of these
Correct Answer: Density
Coal tar fuel – 200 (CTF 200) is a mixture of __________________?
A Pitch and creosote oil
B Light oil and pitch
C Anthracene and crecosote oil
D Solar oil and pitch
Correct Answer: Pitch and creosote oil
Sometimes water is sprayed during coal charging in the coke oven, which helps in ________________?
A Prevention of clinker formation in the oven
B Controlling the dust nuisance while charging the coal
C Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO &
D All A., B. and C.
Correct Answer: All A., B. and C.
The sequence of absorption in flue gas analysis by Orsat’s apparatus is respectively_______________________?
A CO2, O2, CO
B CO, O2, CO2
C CO2, CO, O2
D O2, CO2, CO
Correct Answer: CO2, O2, CO
Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its_________________?
A Caking index
B Yield of carbonised products
C Friability & oxygen content
D Calorific value
Correct Answer: Friability & oxygen content
Stoke’s equation is valid in the Reynolds number range__________________?
A 0.01 to 0.1
B 0.1 to 2
C 2 to 10
D 10 to 100
Correct Answer: 0.01 to 0.1