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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

A coal having high amount of volatile matter____________________?
A Would require smaller combustion chamber
B Produces very little of tar and gas on carbonisation
C Ignites easily and burns with long smoky flame
D All A., B. and C.
Correct Answer: All A., B. and C.
Yield of charcoal in high temperature carbonisation of wood is about _____________ percent?
A 10
B 25
C 50
D 75
Correct Answer: 25
Fixed carbon in coal is defined as______________________?
A That present in volatile matters
B The total quantity of carbon present in the coal
C Hundred minus the percentage of volatile matter, ash and moisture
D The one which is present in the residue after combustion
Correct Answer: Hundred minus the percentage of volatile matter, ash and moisture
During combustion of gaseous fuels, deficiency of air_________________?
A Lengthens the flame
B Tends to shorten the flame
C Does not affect the flame length
D Increases the flame temperature
Correct Answer: Lengthens the flame
Calorific value of furnace oil is about _______________ Kcal/kg?
A 10,000
B 15,000
C 5,000
D 20,000
Correct Answer: 10,000
Air/gas ratio for complete combustion will be the highest for__________________?
A LPG
B Gobar gas
C Coke oven gas
D Carburetted water gas
Correct Answer: LPG
Which of the following is not a by-product recovered in a high temperature coal carbonisation plant ?
A Benzol
B Pitch-creosote mixture (PCM)
C Naphthalene
D Ethylene
Correct Answer: Ethylene
The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always___________________?
A 1
B < 1
C > 1
D Unpredictable
Correct Answer: 1
A good coking coal should have high ______________ content?
A Ash
B Sulphur & phosphorus
C Moisture
D None of these
Correct Answer: None of these
Gross & net calorific value is the same for___________________?
A Blast furnace gas
B Coke oven gas
C L.D. converter gas
D None of these
Correct Answer: L.D. converter gas
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