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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 causes death by asphyxiation, if its presence in atmospheric air exceeds maximum allowable concentration (i.e. > 50 ppm) ?

A Benzopyrene

B Peroxyacetyl nitrate

C Carbon monoxide

D Sulphur dioxide

Review Detailed Answer

Correct Answer: Carbon monoxide

The pH value of potable water should be between____________________?

A 1 to 1.5

B 6.5 to 8

C 13 to 14

D 4 to 5

Review Detailed Answer

Correct Answer: 6.5 to 8

Which of the following plants does not emit appreciable amount of SO2 in atmosphere ?

A Thermal power plant

B Petroleum refinery

C Nitric acid plant

D Sulphuric acid plant

Review Detailed Answer

Correct Answer: Nitric acid plant

Biological oxidation ponds remove organic matters present in the polluted water by _______________?

A Using the activities of bacteria and other micro organisms

B Aerobic oxidation

C Both A. & B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Both A. & B.

Black smoke coming out of the chimney of a furnace is an indication of the use of ______________ in the furnace?

A Low amount of excess combustion air

B Large quantity of excess combustion air

C Hydrocarbon fuel

D Pulverised coal as fuel

Review Detailed Answer

Correct Answer: Low amount of excess combustion air

Presence of nitrates in water in excess of 50 ppm causes________________?

A Methemoglobinemia

B Gastroenteritis

C Asphyxiation

D Tooth decay

Review Detailed Answer

Correct Answer: Methemoglobinemia

Which is the most efficient dust removal equipment for removal of submicronic dust particles from blast furnace gas ?

A Packed scrubber

B Gravity settling chamber

C Electrostatic precipitator

D Hydrocyclone

Review Detailed Answer

Correct Answer: Electrostatic precipitator

Pick out the wrong statement ?

A The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere

B Stratosphere is rich in ozone and is located just above the troposphere

C Troposphere is a turbulent dusty zone containing much of water vapor and clouds

D The earth’s atmosphere is an envelope of gases extending upto a height of about 200 kms

Review Detailed Answer

Correct Answer: The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere

Ethanolamine is an absorbent used for the removal of _____________ from air/gas?

A HF

B SO2

C H2S

D Both B. & C.

Review Detailed Answer

Correct Answer: Both B. & C.

Threshold limit value (TLV) of CO in air is _____________ ppm?

A 5

B 50

C 2000

D 5000

Review Detailed Answer

Correct Answer: 5

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Which of the following causes death by asphyxiation, if its presence in atmospheric air exceeds maximum allowable concentration (i.e. > 50 ppm) ?

The pH value of potable water should be between____________________?

Which of the following plants does not emit appreciable amount of SO2 in atmosphere ?

Biological oxidation ponds remove organic matters present in the polluted water by _______________?

Black smoke coming out of the chimney of a furnace is an indication of the use of ______________ in the furnace?

Presence of nitrates in water in excess of 50 ppm causes________________?

Which is the most efficient dust removal equipment for removal of submicronic dust particles from blast furnace gas ?

Pick out the wrong statement ?

Ethanolamine is an absorbent used for the removal of _____________ from air/gas?

Threshold limit value (TLV) of CO in air is _____________ ppm?