Environmental Engineering in CE MCQs

307 questionsChemical-EngineeringPage 22 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 190medium
Presence of a certain minimum quantity of flourine is desirable in potable water to prevent
Question 191medium
Infective bacteria in water is killed by the __________ process.
Question 192medium
Ozone level is generally found to be depleted in India in the month of
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Question 193hard
In troposphere (the weather domain), the temperature 't' at height 'h' above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)
Question 194hard
The commonest form of iron & manganese found in ground water as pollutant is in the form of their
Question 195hard
Water filtration rate in a rapid sand filter ranges from __________ kilolitres/m2/hr.
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Question 196hard
Oil and grease present in an emulsified state in waste water discharged from industries can be removed by
Question 197medium
Which of the following is a manmade source of air pollution?
Question 198hard
Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm.