Tag: sources of water

Quizzes (13) Questions (140)

Questions Related to sources of water

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources reduce, recycle, reuse importance of the conservation of natural resources

Per capita daily consumption of energy is lowest in

  1. USA

  2. UK

  3. India

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

Developed nations like the USA, UK, and Russia have significantly higher industrialization and energy consumption per capita compared to developing nations like India.

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources reduce, recycle, reuse importance of the conservation of natural resources

To meet energy crisis what other sources can be exploited?

  1. Wind

  2. Water

  3. Nuclear

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

The wind, water, and nuclear energy are renewable forms of energy resources. These reserves once consumed can be replenished again. When there is an energy crisis, due to the reduction in the number of energy reserves, there will be an increase in the use of renewable resources. These energy resources can be exploited for the production of energy when there are no other resources available. 

Thus, the correct answer is option D. 

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources reduce, recycle, reuse importance of the conservation of natural resources

Greatest problem in the water conservation is to reduce the amount of

  1. Ground water

  2. Precipitation

  3. Evaporation

  4. Run off water
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Evaporation from water reservoirs in hot arid climates causes a loss of 10 vertical feet a year. This water loss can be controlled by construction of reservoirs with greater water depth and concentration of water into single reservoir. Also wind blowing across the surface of water reservoir causes additional evaporation. A windbreak helps to conserve water. Thus the correct answer is option C.

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources

The best way to conserve energy is 

  1. Install exhaust fan at a high elevation

  2. Use of fluorescent bulbs

  3. Turn off light when not in use

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

Conservation of energy is of great concern nowadays. Light is also a form of energy which should not be wasted. The best way to conserve the light energy are as follows.

(i) Turn off the lights when not in use.
(ii) De-dust lighting fixtures to maintain illumination.
(iii) LED Lamps should be used instead of conventional incandescent bulbs. For example, a 16w LED bulb can be as bright as 150w halogen lamp. LED lamp consumes 1/3rd of CFL energy and 1/30th energy of incandescent bulbs. 
(iv) Conventional regulators should be replaced with electronic regulators for ceiling fans.
(v) Install exhaust fans at a higher elevation than ceiling fans. In diary/poultry industry usage of multi fan axial fans leads to low energy consumption with low noise levels etc.
Thus, the correct option is D.

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources

Identify the energy saving light bulb.

  1. Incandescent bulb

  2. Compact fluorescent light bulb

  3. Light emitting diode bulb

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

CFL (Compact fluorescent light bulbs) and LED (Light emitting diode bulb) are used in place of incandescent bulb because they use about 1/7$^{th}$ of the power used by the incandescent bulb. Hence, they are highly efficient in saving electricity.

Thus, the correct answer is option D.

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources

Solar energy is the .......... source of energy.

  1. Conventional

  2. Non conventional

  3. Man made

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Energy generated by using wind, tides, solar, geothermal heat, and biomass is known as non-conventional energy. Solar energy is an inexhaustible non-conventional resource. There are three methods of harnessing solar energy- direct heating (e.g., solar cookers), thermoelectric conversion or solar thermal power plants, for example, steam generation and photovoltaic conversion.

Thus, the correct answer is option B.

Multiple choice evs sources of water conservation of natural and energy resources energy conservation and sources importance of the conservation of natural resources

Switch on the power when TV is not in use leads to the energy loss of

  1. 5 watts

  2. 10 watts

  3. 1 watts

  4. 50 watts
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The energy management is very important for the conservation of energy. It involves monitoring the consumption of energy, finding ways to save (control) energy and taking initiatives to conserve energy by replacing the inefficient equipments and controlling routine waste. The power should not be switched on when TV and any other audio or video device is not in use for a long time. It is because even in the switch off condition energy is consumed by the electric appliances and this is called standby power. 10 watts of energy is consumed by the TV even if, the power is on but TV is not in use. So, the correct option is B.