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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.

The main type of sludge gas evolved during sewage treatment in Imhoff tank is___________________?

A CO2

B CH4

C CO

D H2

Review Detailed Answer

Correct Answer: CH4

_____________ plant emits large amount of SO2 as an air pollutant?

A Nitric acid

B Sulphuric acid

C Chlor alkali

D Iron & steel

Review Detailed Answer

Correct Answer: Sulphuric acid

‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the____________________?

A Industrial chimney exhaust

B Automobiles exhaust

C Photochemical reaction in polluted atmosphere

D Burning of domestic fuel

Review Detailed Answer

Correct Answer: Automobiles exhaust

Which of the following is an adsorbent used for the removal of SO2 from gas/air ?

A Bog iron

B Limestone powder or alkalised alumina

C Silica gel

D Active carbon

Review Detailed Answer

Correct Answer: Limestone powder or alkalised alumina

Radioactive solid nuclear wastes are disposed off by _________________?

A High temperature incineration

B Pathological incineration

C Pyrolysis

D Underground burial in concrete containers

Review Detailed Answer

Correct Answer: Underground burial in concrete containers

Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N2 in contaminated air at which it acts as a natural asphyxiate is ≥ _____________ percent?

A 84

B 88

C 80

D 92

Review Detailed Answer

Correct Answer: 84

Growth of ______________ is promoted by the presence of manganese in water?

A Files

B Algae

C Micro-organisms

D Mosquitoes

Review Detailed Answer

Correct Answer: Micro-organisms

The pH value of oxidised sewage is about_____________________?

A 1.8

B 6.2

C 7.3

D 13.4

Review Detailed Answer

Correct Answer: 7.3

Arsenic pollutant is not generated in _______________ industries?

A Tanneries

B Glass & ceramic

C Beverages

D Any of these

Review Detailed Answer

Correct Answer: Beverages

Pollution by particulate matter emission in the atmosphere does not take place during metal____________________?

A Grinding

B Machining

C Cutting

D Polishing

Review Detailed Answer

Correct Answer: Polishing

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The main type of sludge gas evolved during sewage treatment in Imhoff tank is___________________?

_____________ plant emits large amount of SO2 as an air pollutant?

‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the____________________?

Which of the following is an adsorbent used for the removal of SO2 from gas/air ?

Radioactive solid nuclear wastes are disposed off by _________________?

Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N2 in contaminated air at which it acts as a natural asphyxiate is ≥ _____________ percent?

Growth of ______________ is promoted by the presence of manganese in water?

The pH value of oxidised sewage is about_____________________?

Arsenic pollutant is not generated in _______________ industries?

Pollution by particulate matter emission in the atmosphere does not take place during metal____________________?