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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.

In water treatment, alum [Al2(SO4)3] is used for the process of __________________?

A Filtration

B Coagulation

C Sedimentation

D Disinfection

Review Detailed Answer

Correct Answer: Coagulation

Which of the following is not a secondary air pollutant ?

A Ozone

B Photochemical smog

C Sulphur dioxide

D All A., B. & C.

Review Detailed Answer

Correct Answer: Sulphur dioxide

Which of the following dust collection equipments is the least efficient (for sub-micronic particles) ?

A Dust catcher (gravity type)

B Cyclone separator

C Bag filter

D Hollow wet scrubber

Review Detailed Answer

Correct Answer: Dust catcher (gravity type)

Shouting by a man at his full voice corresponds to a voice level of about _____________ decibels?

A 25

B 50

C 80

D 120

Review Detailed Answer

Correct Answer: 80

Acute danger to human life (i.e. death) exists, if the concentration of CO2 in atmospheric air exceeds ______________ percent (by volume)?

A 1

B 3

C 7

D 20

Review Detailed Answer

Correct Answer: 20

Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid flow control. It is caused due to_________________?

A Reynold stresses

B Shear forces

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. & B.

Which of the following is a green house gas other than CO2 ?

A Methane

B Nitrous oxide

C Chlorofluoro carbons (CFC)

D All A., B. and C.

Review Detailed Answer

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

Foaming and priming in boiler operation can be reduced by reduction in ______________ in feed water?

A Turbidity

B Color (Hazen)

C Total solids

D All A., B. & C.

Review Detailed Answer

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

The amount of chemical coagulant added for treatment of polluted water ______________ with increase in temperature of the polluted water to be treated?

A Decreases

B Increases

C Remain constant

D May increase or decrease; depends on the chemical characteristics of polluted water

Review Detailed Answer

Correct Answer: Decreases

A ‘body’ which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the________________?

A Global warming

B Green house

C Atmospheric effect

D Ionosphere

Review Detailed Answer

Correct Answer: Green house

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

In water treatment, alum [Al2(SO4)3] is used for the process of __________________?

Which of the following is not a secondary air pollutant ?

Which of the following dust collection equipments is the least efficient (for sub-micronic particles) ?

Shouting by a man at his full voice corresponds to a voice level of about _____________ decibels?

Acute danger to human life (i.e. death) exists, if the concentration of CO2 in atmospheric air exceeds ______________ percent (by volume)?

Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid flow control. It is caused due to_________________?

Which of the following is a green house gas other than CO2 ?

Foaming and priming in boiler operation can be reduced by reduction in ______________ in feed water?

The amount of chemical coagulant added for treatment of polluted water ______________ with increase in temperature of the polluted water to be treated?

A ‘body’ which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the________________?