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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.

Higher concentration of nitrogen dioxide in atmospheric air causes___________________?

A Cancer

B Bronchitis

C Asphyxiation

D Corrosion

Review Detailed Answer

Correct Answer: Bronchitis

Which is the most widely used coagulant for the treatment of turbid water ?

A Alum (aluminium sulphate)

B Lime

C Ferric chloride

D Sodium aluminate

Review Detailed Answer

Correct Answer: Alum (aluminium sulphate)

A man exposed to excessive noise level in the working environment may suffer from____________________?

A Hearing loss

B Rupture of ear drum

C Nervousness & fatigue

D All A., B. & C.

Review Detailed Answer

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

5-200 μm size particles are called__________________?

A Colloids or aerosols

B Powder

C Dust

D Smoke

Review Detailed Answer

Correct Answer: Colloids or aerosols

Lagoons used for purification of polluted water_______________?

A Are large shallow artificial lakes also known as clarification lakes, maturation ponds or

B Use micro-organisms/bacteria in presence of dissolved oxygen

C Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended

D All A., B. & C.

Review Detailed Answer

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

Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about ____________ decibels?

A 3

B 30

C 7

D 70

Review Detailed Answer

Correct Answer: 3

TLV of lead for public sewer/waste water is about ______________ ppm?

A 1

B 25

C 150

D 650

Review Detailed Answer

Correct Answer: 1

Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes_______________?

A Foaming

B Odour nuisances

C Undesirable plant growth

D Turbidity

Review Detailed Answer

Correct Answer: Undesirable plant growth

Which of the following is a secondary air pollutant ?

A Photochemical smog

B Sulphur dioxide

C Nitrogen dioxide

D Dust particles

Review Detailed Answer

Correct Answer: Photochemical smog

Ozone is__________________?

A A primary pollutant

B A secondary pollutant

C Impervious to ultra-violet rays

D Both B. and C.

Review Detailed Answer

Correct Answer: Both B. and C.

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Higher concentration of nitrogen dioxide in atmospheric air causes___________________?

Which is the most widely used coagulant for the treatment of turbid water ?

A man exposed to excessive noise level in the working environment may suffer from____________________?

5-200 μm size particles are called__________________?

Lagoons used for purification of polluted water_______________?

Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about ____________ decibels?

TLV of lead for public sewer/waste water is about ______________ ppm?

Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes_______________?

Which of the following is a secondary air pollutant ?

Ozone is__________________?