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.

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

In sewage treatment, its sedimentation is speeded up by commonly adding__________________?

A Hydrochloric acid

B Lime

C Copper sulphate

D Sodium sulphate

Review Detailed Answer

Correct Answer: Lime

What are the methods of treatment & disposal of radioactive wastes ?

A Evaporation & chemical precipitation

B Biological methods & adsorption in ion exchange materials

C Fixing into a solid mass with cement and sinking deep in the sea

D All A., B. & C.

Review Detailed Answer

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

Nitrogen oxides (NOx) is not produced in the ______________ industry?

A Nitric acid making

B Nitrogenous fertiliser

C Detergent

D Any of these

Review Detailed Answer

Correct Answer: Detergent

TLV of ammonia, nitrogen dioxide and phenol vapor in air is ______________ ppm ?

A 5

B 100

C 1000

D 2000

Review Detailed Answer

Correct Answer: 5

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

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?

In sewage treatment, its sedimentation is speeded up by commonly adding__________________?

What are the methods of treatment & disposal of radioactive wastes ?

Nitrogen oxides (NOx) is not produced in the ______________ industry?

TLV of ammonia, nitrogen dioxide and phenol vapor in air is ______________ ppm ?