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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

Low temperature oxidation of coal during storage does not decrease its__________________?
A Oxygen content
B Caking power
C Calorific value
D None of these
Correct Answer: None of these
Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt ‘using theoretical amount of air in___________________?
A Air
B Oxygen
C Either A. or B.
D Either A. or B. without gain or loss of heat
Correct Answer: Either A. or B.
__________ is used as jet engine fuel ?
A Petrol
B Diesel
C Kerosene
D LPG
Correct Answer: Kerosene
Tar is a better fuel than furnace oil, because of its___________________?
A Higher calorific value
B Lower sulphur content
C Higher emissivity (0.8-0.9) resulting in higher radiation heat transfer rate
D Both A. and B.
Correct Answer: Both A. and B.
In low temperature carbonisation (as compared to high temperature carbonisation) of coal__________________?
A Ammonia yield is more
B Aliphatic tar is produced
C Free carbon in tar is more
D All A., B. and C.
Correct Answer: Aliphatic tar is produced
Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ?
A Multicyclones
B Bag filter
C Wet scrubber
D Hydrocyclones
Correct Answer: Bag filter
Artificial draught produced by a fan can be controlled by the___________________?
A Speed of the fan
B Damper
C Variation in the pitch of the fan blades
D All A., B. and C.
Correct Answer: All A., B. and C.
Out of the following, which is the most important parameter for the blast furnace grade coke ?
A CSR & CRI
B Ash content
C Moisture content
D Volatile matter content
Correct Answer: CSR & CRI
Coke having higher porosity has ___________________?
A Lower bulk density
B Lower strength
C Higher reactivity
D All A., B. and C.
Correct Answer: All A., B. and C.
Coals used for the generation of producer gas should have ____________________?
A High caking index
B Low fusion point of ash
C High volatile matter content
D Very low ash content (8-10%)
Correct Answer: High volatile matter content
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