Environment Sustainable Development test - 9

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Environment Sustainable Development test - 9
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  • Question 1
    1 / -0
    Which of the following place has a network of pipelines which supply CNG?
    Solution
    Vadodara Gas Limited operates nine CNG stations in Vadodara and dispensing more than 65,000 kg/day CNG, catering to the consumers of automobile sector comprising Buses, Cars and Auto-rickshaws. The CNG network in the City of Vadodara includes 2-Mother Stations, 1-On-line Station and 6-Daughter Booster Stations and 13 Km Steel Pipelines.
  • Question 2
    1 / -0
    Use of Diesel and Petrol as fuel in automobiles is being replaced by:
    Solution
    Compressed Natural Gas happens to be a very viable alternative to traditional fuels particularly for use in the automobile industry. Being low in pollutants, high in calorific value and heat yield, economical and available in abundance globally, CNG is the perfect alternative for most.

    Secondly, CNG is environment friendly as it reduces vehicular exhaust emissions significantly. Carbon Monoxide emissions are reduced to a maximum of 90 per cent and Hydrocarbon emissions by 60 per cent as compared to vehicles that use Petrol. Carbon Dioxide emissions, a cause for global warming, are also reduced significantly by 10 per cent.
    Hence, Use of Diesel and Petrol as fuel in automobiles is being replaced by CNG.
  • Question 3
    1 / -0
    CNG is:
    Solution
    Correct Answer: Option B

    Explanation: 

    CNG stands for compressed natural gas which is eco-friendly, safe to use, and quite less polluting gas. It has no adverse effect on the environment.

  • Question 4
    1 / -0
    Which among the following is considered as the cleanest fuel?
    Solution
    Liquefied Petroleum Gas is considered as cleanest fuel because of the following reasons:

    1. LPG has a high calorific value. The calorific value of LPG is about 50 KJ/g.
    2. It is very neat and clean domestic fuel. LPG burns with a blue smokeless flame and leaves no ash behind. So, it does not cause any pollution. Therefore, LPG is a clean fuel.
    3. It does not produce any poisonous gases on combustion.
    4. LPG is easy to handle and convenient to store.
    5. LPG is easy to handle and can be ignited almost instantaneously.

    Hence, the correct option is $$D$$

  • Question 5
    1 / -0
    Coal is processed in industries to get some useful products. Which of the following is not obtained from coal?
    Solution
    CNG is made by compressing natural gas which is mainly composed of methane, to less than 1 percent of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 20–25 MPa, usually in cylindrical or spherical shapes.
  • Question 6
    1 / -0
    What are the benefits of using compost?
  • Question 7
    1 / -0
    Which of the following can be adopted for saving cooking gas?
    1. Using a pressure cooker instead of an open vessel
    2. Keeping rice, dal etc. in water soaked condition for some time before cooking
    3. Using a small burner in place of a large burner
    Solution
    By using a pressure cooker, more heat can be imparted as the pressure inside the pressure cooker increases. Keeping eatables in water before cooking requires less heat for cooking and when a small burner is used the amount of cooking gas coming out from burner reduces which reduces the gas consumption.
  • Question 8
    1 / -0
    Some animals and birds used in biopest control are?
    Solution
    Awareness is spreading about various animals and birds which help in  controlling pests. For example, snakes are one of the prime group of animals which prey upon rats, mice and various other pests. Similarly, large varieties of birds, for example, owls and peacocks, prey upon vermin and pests.
  • Question 9
    1 / -0
    What are the negative side effects of bio pest control?
  • Question 10
    1 / -0
    Bio pest control relies on _______. 
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