Tag: evs - i

Quizzes (164) Questions (1366)

Questions Related to evs - i

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

A good fuel should :

  1. be safe to store and transport

  2. be able to provide desired quantity of energy at a steady rate over a long period of time

  3. have low content of non-combustibles and no combustion products that are poisonous or environmental pollutants

  4. all the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A good fuel should be safe, provide steady energy, and be environmentally friendly. All listed criteria are standard requirements for a good fuel.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

What is the term known as 'when there is a great need of energy and we do not have enough amount of the same'?

  1. Energy crisis

  2. Energy loss

  3. Energy gain

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

A situation where the demand for the energy exceeds its availability or the supply resulting in a bottleneck effect, an increase in prices etc., is known as the energy crisis.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

State whether the given statement is True or False :

Energy which is used up cannot be reversed to its original state.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Energy can neither be created nor be destroyed. It can only be transformed form one form to the another. Energy once used up cannot be reversed to its original form.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

From below what is an example of conventional source of energy?

  1. Sun

  2. Wave

  3. Fossil fuels

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

Examples of conventional sources : wood, coal, fossil fuels.

Examples of non-conventional sources: wind, thermal, solar, tidal.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

Hotspots are source of  _________ energy.

  1. wind

  2. geothermal

  3. nuclear

  4. hydroelectric
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hotspots are the volcanic regions near the mantle of Earth.It is the sources of geothermal energy also called natural thermal geysers used to harness electricity.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

The main component of natural gas is?

  1. Carbon dioxide

  2. Carbon monoxide

  3. Oxygen

  4. Methane
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Natural gas is a naturally occurring, flammable gas comprising largely of methane and other hydrocarbons. It is a source of fuel and formed underground.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

Identify from the following, a conventional source of energy :

  1. Solar energy

  2. Tidal energy

  3. Natural gas

  4. Bio energy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Conventional sources of energy are those that have been used for a long time, such as coal, petroleum, and natural gas. Solar and wind are non-conventional or renewable sources.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

Wind-energy map gives information about the

  1. Causes of wind

  2. Amount of rainfall

  3. Intensity of earthquake

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

A wind-energy map provides data on wind speed and direction in specific regions to assess potential for wind power generation, not rainfall or earthquakes.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

The muscular energy required by our body is given to us by :

  1. air

  2. water

  3. oxygen

  4. food
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Food provides the chemical energy that our bodies convert into muscular and other forms of energy through metabolic processes.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

Which of the following statements about pinhole camera are correct?
(i) It is a camera with a single lens.
(ii) It produces an upside down image of object.
(iii) It does not have a screen.
(iv) It works because light travels in a straight line.
(v) It forms real and colourless shadows of objects.

  1. (i) and (v) only

  2. (ii) and (iv) only

  3. (i), (iii) and (iv) only

  4. (ii), (iv) and (v) only
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A pinhole camera is a simple camera without a lens but with a tiny aperture. A pinhole is effectively a light proof box with a small hole in one side. Light from a scene passes through the aperture and projects an invested image on the opposite side of the box.
The image of a pinhole camera may be projected onto a translucent screen for real time viewing.