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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.

C.V. (kcal/Nm3) of gaseous fuels _____________ with increase in molecular weight?

A Decreases

B Increases

C Remain constant

D May increase or decrease, depends on combustibles

Review Detailed Answer

Correct Answer: May increase or decrease, depends on combustibles

Volatile matter content of metallurgical coke may be around ______________ percent?

A 1-2

B 10-15

C 22-26

D 30-33

Review Detailed Answer

Correct Answer: 1-2

Coking coals are invariably____________________?

A Lignites

B Bituminous coals

C Semi-anthracites

D Anthracites

Review Detailed Answer

Correct Answer: Bituminous coals

Ratio of primary air to secondary air increases with increase in the rank of coal, because the__________________?

A High rank coals have higher amount of volatile matter

B Ratio of fixed carbon to volatile matter increases

C Oxygen content progressively decreases

D Calorific value of the coal increases

Review Detailed Answer

Correct Answer: Ratio of fixed carbon to volatile matter increases

Oxygen required for theoretically complete combustion of 1 Nm3 methane is ______________ Nm3?

A 2

B 4

C 6

D 1

Review Detailed Answer

Correct Answer: 2

Calorific value of wood gas is about ______________ kcal/Nm3?

A 1500

B 3300

C 5400

D 8500

Review Detailed Answer

Correct Answer: 3300

The maximum adiabatic flame temperature in air as compared to that in pure oxygen is_______________?

A Much lower

B Much higher

C Same

D Either lower or higher, depends on the type of fuel

Review Detailed Answer

Correct Answer: Much lower

Ammonia content in raw coke oven gas is about _____________ gm/Nm3?

A 1

B 5

C 50

D 100

Review Detailed Answer

Correct Answer: 5

Presence of ______________ in a dry gaseous fuel does not contribute to its calorific value?

A Sulphur

B Oxygen

C Hydrogen

D Carbon

Review Detailed Answer

Correct Answer: Oxygen

For maximum discharge through a chimney, its height should be___________________?

A 200 meters

B Infinitely long

C More than 105.7 metres

D Equal to the height of the hot gas column producing draught

Review Detailed Answer

Correct Answer: Equal to the height of the hot gas column producing draught

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

C.V. (kcal/Nm3) of gaseous fuels _____________ with increase in molecular weight?

Volatile matter content of metallurgical coke may be around ______________ percent?

Coking coals are invariably____________________?

Ratio of primary air to secondary air increases with increase in the rank of coal, because the__________________?

Oxygen required for theoretically complete combustion of 1 Nm3 methane is ______________ Nm3?

Calorific value of wood gas is about ______________ kcal/Nm3?

The maximum adiabatic flame temperature in air as compared to that in pure oxygen is_______________?

Ammonia content in raw coke oven gas is about _____________ gm/Nm3?

Presence of ______________ in a dry gaseous fuel does not contribute to its calorific value?

For maximum discharge through a chimney, its height should be___________________?