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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.

Ionisation potential employed in the industrial electrostatic precipitator is of the order of_______________?

A 30 to 70 kV DC

B 30 to 70 kV AC

C 230 V AC

D 230 V DC

Review Detailed Answer

Correct Answer: 30 to 70 kV DC

Noise level during normal conversation among men is about ______________ decibels?

A 10

B 45

C 90

D 115

Review Detailed Answer

Correct Answer: 45

Exposure to small amount of ______________ results in high blood pressure & heart disease in human beings?

A Hydrogen sulphide

B Mercury

C Cadmium

D Asbestos

Review Detailed Answer

Correct Answer: Cadmium

Which of the following acts as a natural source of air pollution ?

A Forest fire

B Deforestation

C Volcanic eruption

D None of these

Review Detailed Answer

Correct Answer: Volcanic eruption

Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes________________?

A Fading of dyes on textiles

B Corrosion, tarnishing & soiling of metals

C Reduced strength of textiles

D All A., B. and C.

Review Detailed Answer

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

Tri-sodium phosphate is used in boiler water treatment to reduce____________________?

A Turbidity

B Caustic embrittlement

C Suspended silica

D Dissolved oxygen

Review Detailed Answer

Correct Answer: Caustic embrittlement

Which of the following is the most major constituents of air pollutants ?

A Oxides of sulphur

B Oxides of nitrogen

C Carbon monoxide

D Hydrogen sulphide

Review Detailed Answer

Correct Answer: Oxides of sulphur

______________ cannot control the noise pollution ?

A Use of silencers

B Green house gases

C Vibration damping

D Tree plantation

Review Detailed Answer

Correct Answer: Green house gases

Fluorosis (a bone disease) is caused by the presence of high concentration of ____________ in atmospheric air?

A Hydrocarbons

B Hydrogen fluoride

C Hydrogen sulphides

D Nitrogen dioxide

Review Detailed Answer

Correct Answer: Hydrogen fluoride

Death may occur, when SO2 concentration in atmospheric air exceeds ______________ ppm?

A 20

B 100

C 400

D 200

Review Detailed Answer

Correct Answer: 400

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Ionisation potential employed in the industrial electrostatic precipitator is of the order of_______________?

Noise level during normal conversation among men is about ______________ decibels?

Exposure to small amount of ______________ results in high blood pressure & heart disease in human beings?

Which of the following acts as a natural source of air pollution ?

Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes________________?

Tri-sodium phosphate is used in boiler water treatment to reduce____________________?

Which of the following is the most major constituents of air pollutants ?

______________ cannot control the noise pollution ?

Fluorosis (a bone disease) is caused by the presence of high concentration of ____________ in atmospheric air?

Death may occur, when SO2 concentration in atmospheric air exceeds ______________ ppm?