UPPCS Prelims 2018 General Studies Solved Paper Part-3 (Series A)
Q 16. Incinerators are used for which of the following?
- Burning wastes
- Putting wastes into them
- For cutting green trees
- For making fertilisers
Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. Incineration and other high-temperature waste treatment systems are described as “thermal treatment”. Incineration of waste materials converts the waste into ash, flue gas and heat.
Incineration reduces the mass of the waste from 95 to 96 percent. This reduction depends upon the recovery degree and composition of materials. This means that incineration however, does not replace the need for land filling but it reduced the amount to be thrown in it.
Q 17 . What is ‘Green House Effect’?
- Increase in global temperature
- Decrease in global temperature
- Increase in seawater temperature
- Increase in temperature of rivers and lakes
Q 18 . Which of the following is the main component of the natural gas?
- Carbon mono-oxide
Q 19. Which painkiller given to cattle is responsible for near extinction of vultures in India?
Q 20 . Which of the following countries was the largest emitter of CO2 in 2015?
Q 22 . Graphene is
- An alloy of carbon
- Nano structure of carbon
- Isotope of carbon
- None of the above
Answer: Nano structure of carbon
Q 23. Which of the following has the highest velocity?
- Cosmic rays
- Supersonic wave
Q 24. The sound will have the highest velocity in
Q 25. A powerful eye irritant in the smoke is
- Sulphur dioxide
- Carbon dioxide
- Peroxyacetyle nitrate