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Quiz about Power to the People  Solar Applications
Quiz about Power to the People  Solar Applications

Power to the People: Solar Applications Quiz


While the use of solar technology for large-scale energy production is increasing, one of the main benefits of the technology is its use in simpler applications. Let's explore some small-scale uses of solar power for rural and less-developed areas.

A multiple-choice quiz by PDAZ. Estimated time: 5 mins.
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Author
PDAZ
Time
5 mins
Type
Multiple Choice
Quiz #
328,558
Updated
Dec 03 21
# Qns
10
Difficulty
Average
Avg Score
8 / 10
Plays
474
Awards
Top 35% Quiz
- -
Question 1 of 10
1. Solar power can make life easier in remote locations that don't have access to electricity grids, and in some cases, it serves a vital purpose. For which of the following is solar power most commonly used in rural locations? Hint


Question 2 of 10
2. These buildings are often among the first in a remote community to receive off-grid solar energy systems. Besides being used for traditional operations during the day, solar energy can be stored in batteries which allow the buildings to be used as community centers after dark. In which buildings can people be taught about the uses of solar power? Hint


Question 3 of 10
3. The processing of this major export product requires significant energy and has contributed to the destruction of the rainforest as trees are felled to supply power. To prevent the use of wood, solar energy devices are now being used in Latin America for which of these purposes? Hint


Question 4 of 10
4. Solar power has brought educational opportunities to children in developing nations around the globe by providing them with equipment that is common in schools in industrialized nations. What solar-powered items are they? Hint


Question 5 of 10
5. This most basic of appliances is costly to operate in remote locations. Fuel for it must either be gathered, taking significant time, or must be purchased. Instead of using traditional fuels, which essential appliances are now being run on solar power? Hint


Question 6 of 10
6. One of the main problems in developing nations is the spread of disease. Which solar-powered devices use evaporation and UV radiation processes to remove disease-causing agents? Hint


Question 7 of 10
7. Kerosene is often used as a fuel source in the developing world, but it is not the best choice. Not only is it expensive, it can be dangerous, causing fires and injuries. Which basic devices, traditionally run on kerosene in rural areas, are increasingly operated by solar power? Hint


Question 8 of 10
8. While most solar applications in developing nations are geared towards basic living needs, this one brings people into the 21st century. What solar-powered, high-tech devices have been installed on rooftops? Hint


Question 9 of 10
9. While solar-powered refrigerators exist, the cost is fairly prohibitive to use them for food storage. However small-scale models are now showing up in rural areas. For what purpose are these mini refrigerators intended? Hint


Question 10 of 10
10. These devices are now practically a necessity world-wide, but people in rural or developing areas often have problems getting them charged; either electricity isn't available, or it is too expensive. For which high-tech devices are solar-powered models popular in rural areas? Hint



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Quiz Answer Key and Fun Facts
1. Solar power can make life easier in remote locations that don't have access to electricity grids, and in some cases, it serves a vital purpose. For which of the following is solar power most commonly used in rural locations?

Answer: Water pumps

Obtaining water can take up a good part of the day for people living in remote locations without access to plumbing. Additionally, surface water can be contaminated, thus causing illnesses in those who use it. Solar water pumps are used to access underground fresh water supplies, allowing wells to often be built right where the villagers live.

A project in the Kalahari Desert of southern Africa, for example, tapped into a freshwater lake located 100 feet below the surface to provide water not only for people but also for their livestock and their crops.
2. These buildings are often among the first in a remote community to receive off-grid solar energy systems. Besides being used for traditional operations during the day, solar energy can be stored in batteries which allow the buildings to be used as community centers after dark. In which buildings can people be taught about the uses of solar power?

Answer: Schools

Solar electric systems are placed on the roofs of schools, and the energy generated is used not only for powering lights and equipment for the school to use during the day but also for storing energy for use after dark. The schools then become community centers where the villagers can meet for classes and social events.

Some systems generate enough electricity to allow the school to sell it; people come to the school and pay to charge their cell phones.
3. The processing of this major export product requires significant energy and has contributed to the destruction of the rainforest as trees are felled to supply power. To prevent the use of wood, solar energy devices are now being used in Latin America for which of these purposes?

Answer: Drying coffee beans

Small growers often pay to have their harvests dried, so solar drying systems allow them to reduce their costs. Not only does the rainforest benefit from the use of solar technology, the growers also benefit from increased profits. Additionally, since the devices are off-grid systems, they can be used in remote areas, allowing farmers to dry their coffee beans at the location of the harvest.
4. Solar power has brought educational opportunities to children in developing nations around the globe by providing them with equipment that is common in schools in industrialized nations. What solar-powered items are they?

Answer: Laptops

The "One Laptop per Child" program has supplied several hundred thousand solar-powered, Internet-capable laptops to children around the globe since being founded in the early 2000s. Donors have supported the program, paying for laptops around the world, and there was even a "Give one, Get one" program which allowed people to purchase one laptop for a needy child and one for themselves.
5. This most basic of appliances is costly to operate in remote locations. Fuel for it must either be gathered, taking significant time, or must be purchased. Instead of using traditional fuels, which essential appliances are now being run on solar power?

Answer: Ovens

Solar ovens have come a long way since school science fairs. Modern solar ovens can effectively cook everything from meats to breads and run entirely off of solar power. Not only is this a more cost-effective method for people in remote locations, it reduces the need to collect firewood, thus helping to save trees.
6. One of the main problems in developing nations is the spread of disease. Which solar-powered devices use evaporation and UV radiation processes to remove disease-causing agents?

Answer: Water purifiers

Not only do solar water purifiers kill pathogens through exposure to UV radiation, they also can purify salt water by separating the salt by evaporation. Large scale water purifiers are available to provide drinking water to communities that previously had to take their chances with less-than-sanitary water. Additionally, a small scale process called SODIS uses plastic water bottles to purify water through UV radiation, although there has been some criticism of the safety of this program.
7. Kerosene is often used as a fuel source in the developing world, but it is not the best choice. Not only is it expensive, it can be dangerous, causing fires and injuries. Which basic devices, traditionally run on kerosene in rural areas, are increasingly operated by solar power?

Answer: Lights/lanterns

Solar lighting has improved since the days when a fully-charged lantern would only provide a weak light for a few hours. Lanterns can now be placed outside during the day and then be brought in at night to provide several hours of bright light. Solar light bulbs are also available; they are also charged outside during the day and then are brought in at night and can be hung by themselves or in a lighting fixture.

Besides being safer, solar lighting also reduces pollution by replacing kerosene.
8. While most solar applications in developing nations are geared towards basic living needs, this one brings people into the 21st century. What solar-powered, high-tech devices have been installed on rooftops?

Answer: Wi-fi systems

Solar-powered wi-fi devices are used to provide access to the Internet in remote locations. Consisting of a small solar panel, a battery, antenna, ethernet and a router, the equipment is placed on a rooftop and can even run for a few weeks on low sunlight.

Besides allowing people to surf the net, the wi-fi systems allows them to make phone calls over the Internet, thus connecting them quickly to other parts of their country and the world.
9. While solar-powered refrigerators exist, the cost is fairly prohibitive to use them for food storage. However small-scale models are now showing up in rural areas. For what purpose are these mini refrigerators intended?

Answer: Vaccine storage

Vaccine spoilage has been a major problem in remote areas of the world where cold storage isn't available. If the vaccines are not maintained within a particular temperature range from the time they are produced until they are used (called the Cold Chain), the effectiveness of the vaccines is greatly reduced.

The availability of the small, transportable refrigerators allows vaccines to be administered in places where it previously wasn't possible.
10. These devices are now practically a necessity world-wide, but people in rural or developing areas often have problems getting them charged; either electricity isn't available, or it is too expensive. For which high-tech devices are solar-powered models popular in rural areas?

Answer: Cell phone

There are solar-powered chargers which can be used to charge many devices, but solar-powered cell phones are self-contained; they don't need a separate charger. They are particularly popular in areas of Africa and Asia where there is plenty of sunshine and where electricity is unreliable or not available.
Source: Author PDAZ

This quiz was reviewed by FunTrivia editor crisw before going online.
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