Tag: reason for finishing of materials (resources)

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Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

On what basis is the windmill designed ?

  1. Average wind velocity

  2. Local environmental

  3. Height and the number of blades of a windmill

  4. All of them
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Average wind velocity and local environmental (geographical) parameters are the basis of deciding the parameters like the height and the number of blades of a windmill. So, during windmill design, all the factors mentioned are taken care of.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Energy can neither be created nor be destroyed, but it can be changed from one form to another. This law is known as:

  1. potential energy

  2. kinetic energy

  3. conservation principle

  4. conservation of energy
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The law of conservation of energy states that the total energy of an isolated system remains constant, it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather, it can only be transformed from one form to another.

For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes. If one adds up all the forms of energy that were released in the explosion, such as the kinetic energy of the pieces, as well as heat and sound, one will get the exact decrease of chemical energy in the combustion of the dynamite.
 Classically, conservation of energy was distinct from conservation of mass; however, special relativity showed that mass could be converted to energy and vice versa by E = mc2, and science now takes the view that mass–energy is conserved.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation
  1. How much of total crude oil of India is obtained from Gujarat ?

  1. About 50% of total crude oil of India

  2. About 60% of total crude oil of India

  3. About 70% of total crude oil of India

  4. About 40% of total crude oil of India
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
About 50% of total crude oil of India is obtained from Gujarat.
Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Which of the following are the conventional sources of energy?

  1. Wood, dung-cakes, coal, kerosene,

  2. diesel, electricity

  3. LPG, petrol, CNG,

  4. all of them
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Conventional energy sources includes oil, gas and coal. These conventional sources are usually fossil fuels. Their use leads to increased greenhouse gas emissions and other environmental damage.These sources of energy are also called non renewable sources. These sources of energy are in limited quantity except hydro-electric power. These include commercial (coal, petroleum, electricity etc..) and non-commercial (fire wood, straw, dried dung etc.. ).

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Which of the following can not be taken to conserve energy resources (like coal and petroleum)?

  1. Use stairs to climb at least up to three floors of a building instead of taking a lift. This will save electricity.

  2. Pressure cookers should not used for cooking food as the food cooked in cooker at very high pressure, in steam is harmful.

  3. Solar cookers should be used to cook food whenever possible.

  4. The use of biogas as domestic fuel should be encouraged in rural areas.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There are many ways to conserve energy resources like coal or petroleum.

(i) Using stairs instead of lift for general purpose.
(ii) Biogas should be used in rural areas as cowdung is available.
(iii) Solar panels should be used wherever possible.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

State the reasons for resources, why they are finishing rapidly?

  1. Increase in population

  2. Increase in consumption of fuel

  3. Increase in plantation

  4. All of the above
Reveal answer Fill a bubble to check yourself
A,B Correct answer
Explanation

A .Because of the population explosion (rapid increase in population) in the world with limited resources, our natural resources are depleting.

B. With increased population growth, comes an increasing demand for fuel consumption, which is rapidly decreasing fossil fuel resources. 
C. Instead of planting trees, deforestation is taking place to make a way for the development of cities and industries. 
Hence, only A and B are correct.

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

The materials which are finishing fastly are ________.

  1. non-renewable

  2. renewable

  3. both a and b

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Non-renewable resources such as coal, petroleum and natural gas are finishing fastly due to increase in population and industrialisation which results in increased demands of these resources. A non renewable resources is a resources of economic value that cannot be readily replaced by natural means on a level equal to its consumption. 

Multiple choice evs how to save fuel define fossil fuels conservation of fuels reason for finishing of materials (resources) fuel and conservation

Which kind of materials (resources) can be extinct in future?

  1. Non-renewable

  2. Renewable
  3. Both $A$ and $B$

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Non-renewable resources take millions of year to get replenished. So it can extinct in the near future.

Most fossil fuels, such as oil, natural gas and coal are considered non-renewable resources in that their use is not sustainable because their formation takes billions of years.

Hence, the correct option is $\text{A}$