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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.

Beyond what concentration of H2S in air, acute danger to human life exists ?

A 50 ppm

B 100 ppm

C 300 ppm

D 700 ppm

Review Detailed Answer

Correct Answer: 700 ppm

Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters ?

A I-131

B Sr-90

C Au-198

D Ra-226

Review Detailed Answer

Correct Answer: Ra-226

Deaeration of high pressure boiler feed water is done to reduce ___________________?

A Foaming from boilers

B Its dissolved oxygen content

C Its silica content

D Caustic embrittlement

Review Detailed Answer

Correct Answer: Its dissolved oxygen content

The common pollutant generated in chlor-alkali industry and battery manufacture is ___________________?

A Mercury

B Brine

C Phosphate

D None of these

Review Detailed Answer

Correct Answer: Mercury

Permissible safe limit (TLV) of _____________ toxic gas is 100-1000 parts per million (ppm)?

A Highly

B Moderately

C Extremely

D Very extremely

Review Detailed Answer

Correct Answer: Moderately

The Killer gas which caused Bhopal gas tragedy in 1984 was________________?

A Phosgene

B Methyl isocyanate (MIC)

C Carbon monoxide

D Sulphur dioxide

Review Detailed Answer

Correct Answer: Methyl isocyanate (MIC)

Which of the following industries discharge mercury as a pollutant ?

A Chloro-alkali industry

B Tanneries

C Beverage plant

D Phosphoric acid plant

Review Detailed Answer

Correct Answer: Chloro-alkali industry

The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of _____________ of water?

A Dissolved oxygen content

B Biological oxygen demand

C Vapor pressure

D All A., B. and C.

Review Detailed Answer

Correct Answer: Dissolved oxygen content

Peroxyacetyl nitrate (PAN), a pollutant is found in the_________________?

A Automobile exhaust

B Flue gas of coal based power plant

C Exhaust of nitric acid plant

D Exhaust of sulphuric acid plant

Review Detailed Answer

Correct Answer: Automobile exhaust

. Operating principle of cyclone separator is based on the action of _______________ dust particles?

A Diffusion of

B Centrifugal force on

C Gravitational force on

D Electrostatic force on

Review Detailed Answer

Correct Answer: Centrifugal force on

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Beyond what concentration of H2S in air, acute danger to human life exists ?

Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters ?

Deaeration of high pressure boiler feed water is done to reduce ___________________?

The common pollutant generated in chlor-alkali industry and battery manufacture is ___________________?

Permissible safe limit (TLV) of _____________ toxic gas is 100-1000 parts per million (ppm)?

The Killer gas which caused Bhopal gas tragedy in 1984 was________________?

Which of the following industries discharge mercury as a pollutant ?

The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of _____________ of water?

Peroxyacetyl nitrate (PAN), a pollutant is found in the_________________?

. Operating principle of cyclone separator is based on the action of _______________ dust particles?