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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.

Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about _____________ percent?

A < 2

B < 5

C < 8

D < 10

Review Detailed Answer

Correct Answer: < 2

Means for giving direction to the circulation of gases in furnaces are_____________________?

A Fans

B Arrangement of heating stock in the furnaces

C Location of outlet ports and heating & combustion devices

D All A., B. and C.

Review Detailed Answer

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

Heat balance of furnace provides means of determining the_________________?

A Thermal efficiency of the process

B Sources of heat losses

C Scope of reduction of heat losses

D All A., B. and C.

Review Detailed Answer

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

If fuel and air are mixed ahead of the burner, it is called a/an ______________ burner?

A Premix

B Outside mixing type

C Rotary

D Diffusion

Review Detailed Answer

Correct Answer: Premix

Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by______________________?

A Preheating the combustion air

B Oxygen enrichment of combustion air

C Preheating the fuel gas

D All A., B. & C.

Review Detailed Answer

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

Which of the following is a directly fired intermittent furnace ?

A Walking beam reheating furnace

B Reverberatory furnace

C Tower furnace

D Tunnel kiln

Review Detailed Answer

Correct Answer: Reverberatory furnace

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

Example of an indirectly heated furnace is__________________?

A Hood annealing furnace

B Muffle furnace

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. and B.

Use of pulverised coal in boilers provides____________________?

A Higher calorific value

B Better combustion

C Smokeless burning

D Less erosion on furnace wall

Review Detailed Answer

Correct Answer: Better combustion

Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an_________________?

A Economiser

B Steam superheater

C Air preheater

D All A., B. and C.

Review Detailed Answer

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

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about _____________ percent?

Means for giving direction to the circulation of gases in furnaces are_____________________?

Heat balance of furnace provides means of determining the_________________?

If fuel and air are mixed ahead of the burner, it is called a/an ______________ burner?

Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by______________________?

Which of the following is a directly fired intermittent furnace ?

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

Example of an indirectly heated furnace is__________________?

Use of pulverised coal in boilers provides____________________?

Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an_________________?