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RVUNL_CE_Quiz 63

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Question 1

The process of decomposition of biodegradable solid waste by earthworms is called

Question 2

Consider the following statements regarding pyrolysis:
1) It is an irreversible chemical change brought about by the action of heat in oxygen-free atmosphere.
2) Range of temperature is 500 °C to 1000 °C
3) Internal heating causes organic matter to decompose physically and chemically rather than burn.
4) It is a highly exothermic process.
Which of the above statements are correct?

Question 3

Which of the following is correct regarding Equipments and Pollutants removed?

Question 4

Landfills primarily compromised of gases which are produced by the landfills

Question 5

Two electronic precipitators (ESPs) are in series. The fractional efficiencies of the upstream and downstream ESPs for size dp are 80% and 65% respectively. What is the overall efficiency of the system for the same dp?

Question 6

The leachate is an effluent from which of the following:
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May 16AE & JE Exams