Environmental Engineering in CE MCQs
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 55hard
Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called
Question 56hard
Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels.
Question 57hard
Out of the following, TLV of __________ is the minimum (about 0.02 ppm).
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Question 58hard
Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases.
Question 59hard
Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels.
Question 60hard
Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.
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Question 61hard
On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because
Question 62hard
Which of the following dust collection equipments is the least efficient (for sub-micronic particles)?
Question 63medium
Peroxyacyl nitrate (PAN), a pollutant is found in the