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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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.

Grindability index of a coal is 100. It implies that the ___________________?

A Coal can be pulverised with great difficulty

B Coal can’t be pulverised

C Coal can be easily pulverised

D Power consumption in grinding the coal will be very high

Review Detailed Answer

Correct Answer: Coal can be easily pulverised

In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the______________?

A Gas yield is less

B Tar yield is more

C Ignition temperature of coke produced is less

D Aromatic content of tar produced is more

Review Detailed Answer

Correct Answer: Aromatic content of tar produced is more

Which of the following is not a manufactured fuel ?

A Furnace oil

B Bagasse

C Semi-coke

D Kerosene

Review Detailed Answer

Correct Answer: Bagasse

Prime coking coal is always blended with medium or non- coking coal before carbonisation__________________?

A To check against its excessive swelling during heating, which may exert high pressure and

B Because, it alone produces unreactive coke

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. and B.

Low temperature carbonisation of coal takes place at ______________ °C?

A 300

B 1100

C 700

D 150

Review Detailed Answer

Correct Answer: 700

With increase in calorific value of fuels, their adiabatic flame temperatures__________________?

A Increase

B Decrease

C Remain unchanged

D May increase or decrease; depends on the quantity of products of combustion

Review Detailed Answer

Correct Answer: May increase or decrease; depends on the quantity of products of combustion

Which of the following is not applicable to fluidised bed combustion of coal ?

A It cannot burn low grade coal

B It achieves higher fuel combustion efficiency

C Less heat transfer surface area is required in boilers

D None of these

Review Detailed Answer

Correct Answer: It cannot burn low grade coal

Efficiency of the combustion of a fuel is judged by the ______________ the flue gas?

A % of CO2 in

B % of O2in

C Temperature of

D Colour of

Review Detailed Answer

Correct Answer: % of O2in

Preheating of a gaseous fuel results in increased____________________?

A Flame length

B Flame temperature

C Quantity of flue gas

D Ignition temperature

Review Detailed Answer

Correct Answer: Flame temperature

Mineral matter content (M) and ash content A. in coal are approximately related as _______________?

A M = 1.1A

B M = A

C M = 1.5A

D M = 2A

Review Detailed Answer

Correct Answer: M = 1.1A

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Grindability index of a coal is 100. It implies that the ___________________?

In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the______________?

Which of the following is not a manufactured fuel ?

Prime coking coal is always blended with medium or non- coking coal before carbonisation__________________?

Low temperature carbonisation of coal takes place at ______________ °C?

With increase in calorific value of fuels, their adiabatic flame temperatures__________________?

Which of the following is not applicable to fluidised bed combustion of coal ?

Efficiency of the combustion of a fuel is judged by the ______________ the flue gas?

Preheating of a gaseous fuel results in increased____________________?

Mineral matter content (M) and ash content A. in coal are approximately related as _______________?