Environmental Engineering in CE MCQs

307 questionsChemical-EngineeringPage 34 of 35

Practice free Environmental Engineering in CE multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 307 questions — no login required.

Question 298hard
A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm.
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Question 299hard
Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to
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Question 300hard
TLV of mercury in potable (drinking) water is about __________ ppm.
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Question 301hard
TLV of lead for public sewer/waste water is about __________ ppm.
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Question 302medium
Radioactive substances present in the polluted water stream can be removed by
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Question 303hard
The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant?
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Question 304easy
Which of the following is not an air pollutant?
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Question 305easy
Presence of excess flourine in water causes
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Question 306easy
Higher concentration of nitrogen dioxide in atmospheric air causes
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