Chemical Environmental Engineering Mcqs
Chemical Environmental Engineering Mcqs, this topic has 273 mcqs, It takes five to ten minutes to complete this free Chemical Environmental Engineering Mcqs test. You will see 4 or 5 option of each question. You must choose / think only one option and then press on answer key for check right answer. Practice "Chemical Environmental Engineering Mcqs" MCQs and share with your friends, brothers, sisters.
Chemical Environmental Engineering Mcqs (Total Quiz: 273)
MCQ: There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant ?
- Mercury
- Arsenic
- Aluminium
- Lead
C
MCQ: On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because __________________?
- Of clotting of blood
- Of jamming of respiratory tract
- It forms carboxyhemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen
- It forms CO2 by combining with oxygen present in the blood
C
MCQ: In water treatment plant, zeolite process is used to remove the _____________ of water?
- Acidity
- Alkalinity
- Hardness
- Iron & zinc
C
MCQ: Disinfection of water is done to remove ______________________?
- Color
- Bad taste
- Foul odour
- Bacteria
D
MCQ: Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about _______________ decibels?
- 105
- 135
- 160
- 185
B
MCQ: The average thickness of ozone layer in stratosphere is about _______________ dobson unit (DU)?
- 20
- 230
- 750
- 1500
B
MCQ: CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing ________________ molecules of ozone?
- 102
- 105
- 109
- 1015
B
MCQ: The upper layer of atmosphere is called the ____________________?
- Stratosphere
- Troposphere
- Ionosphere
- None of these
A
MCQ: The term Biological Oxygen Demand (BOD) is used in relation to ______________________?
- Potable water
- Cooling water
- Distilled water
- Industrial effluents
D
MCQ: Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate ?
- CO
- SO2
- NOx
- CFC (chloro fluoro carbons)
A