QUIZ ON ENERGY CONSERVATION

1. 

Which among the following is the most energy-efficient?

• A. 

  Incandescent bulb

• B. 

  Fluorescent tube light

• C.

  Compact fluorescent lamp

• D. 

  All are equally efficient.

2. 

In India and elsewhere, biomass can be obtained from

• A. 

  Groundnut shells

• B. 

  Sugarcane bagasse

• C. 

  Rice husk

• D. 

  All of the above

3.Solar cells are simple photovoltaic devices that convert solar energy directly into electricity and are manufactured from the second-most abundant element in the earth's crust. Name it.

• Bauxite

• Silicon

• Calcium

• Magnesium

4.In rural areas, this gas can be generated and used for cooking and lighting.

• Biogas

• Oxygen

• Ammonia

• None of these

5.Large amounts of solar energy are stored in the oceans and seas. The process of harnessing this energy is called

• OTEC (ocean thermal energy conversion)

• OTC (ocean thermal conversion)

• OSTEC (ocean and sea thermal energy conversion)

• OTEC(Ocean technology of energy conversion)

6.A much cheaper and lighter fuel extracted from crude oil is used to adulterate petrol in the ratio of 3:1 (adulterant: petrol). It causes damage to the vehicle engine, besides leading to high emission levels. Name this common adulterant of petrol that most easily escapes detection.

• Diesel

• Kerosene

• Naphtha

• Mobile oil

7.Some people object to wind turbines because:

• They do not like windmills.

• They get in the way of photographs.

• Wind farms are not real farms.

• They are often built in areas of natural beauty.

8.Natural gas is transported mainly by

• Pipelines

• Trucks

• Auto rickshaw

• All three equally

9.How much of the energy in burning coal reaches the consumer as electricity

• 1/3 (one-third)

• 1/2 (one-half)

• 3/4 (three-quarters)

• 9/10 (nine-tenths)

10.Plastic was once hailed as the wonder material but is now becoming a serious environmental and health problem due to its non-biodegradable nature. The burning of plastics, especially PVC, releases the following harmful gas into the atmosphere.

• Dioxins

• Le

• O

• N