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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

Rate of low temperature oxidation of coal due to bad storage conditions_______________?
A Decreases with increase in surface area
B Does not vary with increase in surface area
C Is more for low volatile coal compared to high volatile coal
D Is accelerated by storage in large heaps with small surface to volume ratio
Correct Answer: Is accelerated by storage in large heaps with small surface to volume ratio
Dust content in raw blast furnace gas is about _______________ gm/Nm3; hence it is cleaned to the dust level of about < 10 mg /Nm3 before use?
A 15-30
B 1-2
C 70-100
D 150-200
Correct Answer: 15-30
When steam is passed over coal resulting in the endothermic reaction represent by, C + H2O = CO + H2, it is called the _______________ of coal?
A Carbonisation
B Oxidation
C Coalification
D Gasification
Correct Answer: Gasification
Flue gas discharge velocity through chimney of a big thermal power plant may be around ________________ m/sec?
A 0.5
B 10
C 50
D 500
Correct Answer: 10
Bomb calorimeter is used for the determination of calorific value of the _____________ fuels?
A Gaseous
B Solid
C Liquid
D Both B. and C.
Correct Answer: Both B. and C.
Coke ovens in steel plant are heated by ___________________?
A Electricity
B Coke oven gas
C Mixed gas
D Both B. & C.
Correct Answer: Both B. & C.
Soft coke is not ___________________?
A Produced by low temperature carbonisation of coal
B A domestic fuel
C Used in blast furnaces
D None of these
Correct Answer: Used in blast furnaces
Percentage of hydrogen in coke oven gas may be around ___________________?
A 10
B 25
C 45
D 60
Correct Answer: 60
A coal with high ash content is undesirable, as________________?
A It is abrasive to the coal pulveriser (i.e. ball mill) and the combustion chamber
B The ash in molten condition gets absorbed in the pores of the refractory lining of the furnace
C The ash retains the sulphur & phosphorus and thus affects the quality of products in
D All A., B. and C.
Correct Answer: All A., B. and C.
Which of the following is the most poisonous gas ?
A Coke oven gas
B Producer gas
C Blast furnace gas
D L.D. converter gas
Correct Answer: L.D. converter gas
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