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.

_____________ prohibits the use of alcohols directly in petrol engines ?

A Low octane number

B High cost & availability

C Low flash point

D Low calorific value

Review Detailed Answer

Correct Answer: High cost & availability

Volumetric ratio of N2 to O2 in dry atmospheric air is ______________?

A 0.21

B 3.76

C 4.76

D 0.79

Review Detailed Answer

Correct Answer: 3.76

Bituminous coal___________________?

A Ignites less easily than anthracite

B Is generally coking

C Burns with smoky yellow flame

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

Washing of coal _________________?

A Reduces its ash & sulphur content

B Improves its coking properties

C Increase the fusion point of its ash by removing chlorine compounds

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

Coalification means the ___________________?

A Process of conversion of lignite into anthracite

B Underground gasification of coal

C Complete combustion of coal

D Direct hydrogenation of coal

Review Detailed Answer

Correct Answer: Process of conversion of lignite into anthracite

The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always ___________________?

A 1

B < 1

C > 1

D Unpredictable

Review Detailed Answer

Correct Answer: 1

Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if __________________?

A It contains large amount of volatile matter

B It is stored in tall heaps

C Smaller fines are stored in large quantity

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be_____________?

A Low

B High

C Very high, if the fuel is of low calorific value

D None of these

Review Detailed Answer

Correct Answer: Low

The main advantage of forced draft over natural draft is that____________________?

A Combustion of fuel is complete

B Smaller height chimney can be used

C Furnace control is easier

D All A., B. & C.

Review Detailed Answer

Correct Answer: All A., B. & C.

Oxygen percentage (by weight) in atmospheric air is_________________?

A 19

B 21

C 23

D 29

Review Detailed Answer

Correct Answer: 23

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

_____________ prohibits the use of alcohols directly in petrol engines ?

Volumetric ratio of N2 to O2 in dry atmospheric air is ______________?

Bituminous coal___________________?

Washing of coal _________________?

Coalification means the ___________________?

The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always ___________________?

Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if __________________?

If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be_____________?

The main advantage of forced draft over natural draft is that____________________?

Oxygen percentage (by weight) in atmospheric air is_________________?