Chemical Environmental Engineering MCQs

141 MCQs  — Chemical Engineering MCQs  (Page 12 of 15)

Attempt Chemical Environmental Engineering Quiz
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
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Siderosis is a disease caused by the inhalation of ______________ dust?
A. Coal
B. Silica
C. Iron
D. None of these
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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
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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
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‘Pneumoconiosis’ is a disease caused by the inhalation of ______________ dust?
A. Coal
B. Uranium ore
C. Iron ore
D. Lime
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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
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Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is _____________ decibels?
A. 35
B. 75
C. 95
D. 105
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Exposure to chemicals having carcinogenic properties cause ____________________?
A. Dermatitis (skin disorder)
B. Cancer
C. Asphyxiation (suffocation)
D. Asthma
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World’s worst radioactive pollution was caused by nuclear reactor disaster which occured in ___________________?
A. Arizona (u.s.a.)
B. Chernobyl (undivided u.s.s.r.)
C. Pennsylvania (u.s.a.)
D. Moscow (u.s.s.r.)
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High noise level in a chemical plant can be controlled by the_________________?
A. Suppression of nosie at the source itself
B. Path control of nosie
C. Protection of operating personnel
D. All a., b. & c.
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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