M C Q s D r i v e

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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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.

Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is _____________ decibels?
A 35
B 75
C 95
D 105
Correct Answer: 75
COD of raw municipal sewage may be in the range of about _____________ mg/litre?
A 1-2
B 5-10
C 90-120
D 1500-2500
Correct Answer: 90-120
‘Pneumoconiosis’ is a disease caused by the inhalation of ______________ dust?
A Coal
B Uranium ore
C Iron ore
D Lime
Correct Answer: Coal
A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from ______________ ppm?
A 1000 to 2000
B 3000 to 6000
C 6000 to 9000
D 10000 to 100000
Correct Answer: 10000 to 100000
Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about ______________ decibels?
A 75
B 95
C 120
D 140
Correct Answer: 95
Siderosis is a disease caused by the inhalation of ______________ dust?
A Coal
B Silica
C Iron
D None of these
Correct Answer: Iron
Lagooning process is mainly a means of the__________________?
A Sludge disposal
B Reduction of excessive flow in sewers
C Biological treatment of wastes
D None of these
Correct Answer: Sludge disposal
‘Particulate’ air pollutants are finely divided solids and liquids. Which of the following is not a „particulate‟ ?
A Dust & mists
B Smoke & fumes
C Photochemical smog & soot
D None of these
Correct Answer: None of these
During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum ?
A Idle running
B Acceleration
C Cruising
D Deceleration
Correct Answer: Idle running
Carbon monoxide is a pollutant, which causes_________________?
A Respiratory disease (e.g. asthma)
B Asphyxiation (suffocation) leading to death
C Retardation in crop growth
D Damage to building materials like marble
Correct Answer: Asphyxiation (suffocation) leading to death