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Chemical Environmental Engineering — Test 5

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Question 1
80% less than 200 mesh size particles are called____________________?
Question 2
Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants ?
Question 3
Higher concentration of CO2 in atmosphere_____________________?
Question 4
Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes__________________?
Question 5
Maximum permissible turbidity in potable water is _____________ ppm?
Question 6
H2S present in gaseous stream can be removed by adsorption on _____________________?
Question 7
Radioactive substances present in the polluted water stream can be removed by_________________?
Question 8
TLV of ozone (O3) and phosgene (COCl2) in air is _______________ ppm?
Question 9
Presence of bacteria in potable (drinking) water causes_________________?
Question 10
Noise level heard at a distance of about 100 metres from a jet engine with after burner is about _____________ decibels?