EXAMIANS
Presence of __________ in water stream are deleterious to aquatic life.
YOUR ANSWER : ?
YOUR ANSWER : ?
Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels.
YOUR ANSWER : ?
Hazardous/polluting chemical industries should have an 'exclusion zone' with a green belt and general public access prohibited around it, covering a radius of ____ metres.
YOUR ANSWER : ?
The main type of sludge gas evolved during sewage treatment in Imhoff tank is
YOUR ANSWER : ?
The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the
YOUR ANSWER : ?
Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes
YOUR ANSWER : ?
H₂S present in gaseous stream can be removed by adsorption on
YOUR ANSWER : ?
Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels.
YOUR ANSWER : ?
Presence of bacteria in potable (drinking) water causes
YOUR ANSWER : ?
Which of the following is an adsorbant used for the removal of SO₂ from gas/air?
YOUR ANSWER : ?