Chemical Engineering — Test 204
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Question 1
Inhalation of silica dust by human being causes ___________________?
Question 2
The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant ?
Question 3
The lowest layer of atmosphere is known as the_____________________?
Question 4
Carcinogenic air pollutants cause__________________?
Question 5
The resistance of water to the passage of light through it is a measure of the___________________?
Question 6
Polyvinyl chloride containers are not suitable for storing_________________?
Question 7
Fresh domestic sewage is _______________ in color?
Question 8
Noise level inside a jet airliner in normal flight is about ______________ decibels?
Question 9
Aerosols present in atmospheric air may be__________________?
Question 10
A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of _____________ high above earth’s atmosphere, which absorbs it?