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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.

Bunsen burner is an example of a/an _____________ burner?

A Inside mixing/premix type

B Outside mixing/diffusion flame/nozzle mix type

C Rotary cup

D Submerged combustion

Review Detailed Answer

Correct Answer: Inside mixing/premix type

Bulk density of pulverised coal may be about ______________ kg/m3?

A 100

B 500

C 1000

D 1500

Review Detailed Answer

Correct Answer: 500

Which of the following would require least amount of secondary air for combustion ?

A Coke breeze containing 25% ash and 2% volatile matter

B Anthracite containing 10% volatile matter and 8% ash

C Bituminous coal containing 20% ash and 25% volatile matter

D Semi-bituminous coal containing 25% ash and 20% volatile matter

Review Detailed Answer

Correct Answer: Coke breeze containing 25% ash and 2% volatile matter

Calorific value of blast furnace gas is around _____________ KCal/Nm3?

A 850

B 1800

C 4200

D 6500

Review Detailed Answer

Correct Answer: 850

Nitrogen in coal_________________?

A Is present upto 1-2%

B Comes from protein in parent vegetable matter

C Is recovered as ammonia during its carbonisation

D All A., B. and C.

Review Detailed Answer

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

The gas which contributes maximum to the heating value of natural gas is __________________?

A CO

B CO2

C H2

D CH4

Review Detailed Answer

Correct Answer: CH4

To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in___________________?

A Shallow and small piles

B Fine sizes without the presence of any lump

C Closed space without any ventilation facility

D Large heaps with small surface to volume ratio

Review Detailed Answer

Correct Answer: Shallow and small piles

Washing of coal decreases its_________________?

A Caking index

B Mineral matter content

C Ash content

D Both B. and C.

Review Detailed Answer

Correct Answer: Mineral matter content

In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by__________________?

A Cuprous chloride

B Potassium hydroxide

C Alkaline pyrogallol solution

D None of these

Review Detailed Answer

Correct Answer: Cuprous chloride

In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of__________________?

A Transportation of coal

B Drying of coal

C Combustion of coal by supplying it around the burner

D Preheating the primary air

Review Detailed Answer

Correct Answer: Combustion of coal by supplying it around the burner

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Bunsen burner is an example of a/an _____________ burner?

Bulk density of pulverised coal may be about ______________ kg/m3?

Which of the following would require least amount of secondary air for combustion ?

Calorific value of blast furnace gas is around _____________ KCal/Nm3?

Nitrogen in coal_________________?

The gas which contributes maximum to the heating value of natural gas is __________________?

To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in___________________?

Washing of coal decreases its_________________?

In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by__________________?

In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of__________________?