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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.

Turndown ratio of a burner gives an idea of the ______________ in the furnace?

A Range of fuel firing rates

B Volume of the combustion chamber

C Maximum heat input rate only

D Minimum heat input rate only

Review Detailed Answer

Correct Answer: Range of fuel firing rates

A refractory wall separating the stock and the source of heat is provided in a__________________?

A Updraft kiln

B Muffle furnace

C Continuous furnace

D None of these

Review Detailed Answer

Correct Answer: Muffle furnace

Large tonnage of refractory bricks are dried in a_____________________?

A Shaft furnace

B Rotary hearth furnace

C Tunnel kiln

D Muffle furnace

Review Detailed Answer

Correct Answer: Tunnel kiln

Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?

A Ash disposal problem

B Excessive fly ash discharge from the stack

C Higher power consumption in its transportation

D Erosion of induced draft fan blades

Review Detailed Answer

Correct Answer: Ash disposal problem

If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an ______________ furnace?

A Sidefired

B Underfired

C Covered

D Recirculating

Review Detailed Answer

Correct Answer: Underfired

_____________ atmosphere is maintained inside an iron blast furnace?

A Oxidising

B Reducing

C Inert

D Decarburising

Review Detailed Answer

Correct Answer: Reducing

Which one shows the diagrammatic heat balance in a furnace ?

A Sankey diagram

B Cox chart

C Ostwald chart

D None of these

Review Detailed Answer

Correct Answer: Sankey diagram

In reverberatory furnace, charge is heated mainly by__________________?

A Conduction

B Natural convection

C Radiation of heat from the roof of the combustion chamber

D None of these

Review Detailed Answer

Correct Answer: Radiation of heat from the roof of the combustion chamber

Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above _____________ °C, because corrosion prevails at higher temperatures?

A 350

B 750

C 1050

D 1250

Review Detailed Answer

Correct Answer: 750

In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of__________________?

A Use of non-preheated combustion air

B Use of pulverised solid fuels

C Imperfect mixing of fuel & air and infiltration of air

D Use of excessive positive draft in the furnace

Review Detailed Answer

Correct Answer: Imperfect mixing of fuel & air and infiltration of air

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Turndown ratio of a burner gives an idea of the ______________ in the furnace?

A refractory wall separating the stock and the source of heat is provided in a__________________?

Large tonnage of refractory bricks are dried in a_____________________?

Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?

If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an ______________ furnace?

_____________ atmosphere is maintained inside an iron blast furnace?

Which one shows the diagrammatic heat balance in a furnace ?

In reverberatory furnace, charge is heated mainly by__________________?

Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above _____________ °C, because corrosion prevails at higher temperatures?

In practical operation of any furnace, zero oxygen percentage or theoretical CO2 percentage in flue gas is rarely achieved, because of__________________?