Power Grid: How Stuff Works Article

What are some of the things that people use electrical power for?

• Heating, cooling, cooking, and refrigeration
• Swimming, biking, and running
• Reading, writing, and arithmetic
• Singing, dancing, and acting

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What is the power distribution grid?

• A system that delivers electrical power from the power plant to homes and businesses
• A system that delivers water from the ocean to homes and businesses
• A system that delivers food from the farm to homes and businesses
• A system that delivers gas from the station to homes and businesses

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How many miles of high-voltage power lines are there in the United States?

• 850,000 miles
• 450,000 miles
• 650,000 miles
• 250,000 miles

Why must electricity be continuously produced?

• Because large amounts of energy are always being used
• Because large amounts of energy can be stored
• Because large amounts of energy are always being stored
• Because large amounts of energy cannot be stored

What advancements in technology allow home-generated electricity to connect to the grid?

• Solar panels and wind generators
• Gasoline and diesel generators
• Candles and flashlights
• Batteries and generators

What is the smart grid?

• A grid that employs analog technology to less efficiently manage energy resources
• A grid that employs digital technology to more efficiently manage energy resources
• A grid that employs analog technology to more efficiently manage energy resources
• A grid that employs digital technology to less efficiently manage energy resources

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What is the purpose of the smart grid project?

• To limit the reach of the grid to access remote sources of renewable energy
• To extend the reach of the grid to access remote sources of renewable energy
• To limit the reach of the grid to access remote sources of non-renewable energy
• To extend the reach of the grid to access remote sources of non-renewable energy

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What is the equipment that brings electrical power to homes?

• Hammers, nails, and saws
• Transformers, circuit breakers, and power lines
• Screwdrivers, pliers, and wrenches
• Drills, saws, and sanders

What can cause a blackout?

• Equipment success, severe weather, and human perfection
• Equipment failure, mild weather, and human error
• Equipment success, mild weather, and human perfection
• Equipment failure, severe weather, and human error

What is the role of overhead transmission lines in the power distribution grid?

• To connect high-voltage power lines to homes and businesses
• To connect electrical power plants to wind farms
• To connect electrical power plants to high-voltage power lines
• To connect homes and businesses to electrical power plants

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