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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.

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

High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes____________________?

A Cancer

B Silicosis

C Respiratory disease (e.g., asthma)

D Reduced crop yield

Review Detailed Answer

Correct Answer: Cancer

Exposure to chemicals having carcinogenic properties cause___________________?

A Dermatitis (skin disorder)

B Cancer

C Asphyxiation

D Asthma

Review Detailed Answer

Correct Answer: Cancer

Which of the following air pollutants is not toxic to vegetation i.e., doesn’t cause vegetation damage ?

A Smog & ozone

B Hydrogen fluoride & nitrogen oxides

C Sulphur dioxide & spray of weed killers

D Carbon monoxide

Review Detailed Answer

Correct Answer: Carbon monoxide

Presence of high concentration of ozone and smog in atmospheric air causes the __________________?

A Embrittlement & decrease of folding resistance of paper

B Cracking of rubber products

C Fading of dye on textiles

D Damage of electrical insulator on high tension power line

Review Detailed Answer

Correct Answer: Cracking of rubber products

Main pollutants released from petroleum refineries is__________________?

A CO, SO2 & H2S

B CO2, NO & SO3

C CO2, H2S & NO2

D SO3, NO2 & CO2

Review Detailed Answer

Correct Answer: CO, SO2 & H2S

Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of _____________ present in it?

A Coal ash

B Potassium cyanide

C Ortho-xylene

D None of these

Review Detailed Answer

Correct Answer: Potassium cyanide

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

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________________?

High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes____________________?

Exposure to chemicals having carcinogenic properties cause___________________?

Which of the following air pollutants is not toxic to vegetation i.e., doesn’t cause vegetation damage ?

Presence of high concentration of ozone and smog in atmospheric air causes the __________________?

Main pollutants released from petroleum refineries is__________________?

Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of _____________ present in it?