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Mains Electricity Quiz

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Questions and Answers

What is the most common voltage and frequency combination used in North America?

110 V and 50 Hz

230 V and 50 Hz

120 V and 60 Hz (correct)

240 V and 60 Hz

What is the general-purpose alternating-current electric power supply commonly known as?

Mains electricity (correct)

Solar power

Direct current

Hydroelectric power

What may happen to travellers' portable appliances when used with foreign electrical supplies?

Enhanced performance

Increased durability

No impact

Inoperative or damaged (correct)

What is the purpose of non-interchangeable plugs and sockets in different regions?

Provide protection from accidental use of appliances with incompatible voltage and frequency Signup and view all the answers

What is the nominal voltage and frequency used in much of the world for electrical power?

230 volts and 50 Hz Signup and view all the answers

What is the form of electrical power that is delivered to homes and businesses through the electrical grid in many parts of the world?

Mains electricity Signup and view all the answers

What is the nominal voltage and frequency commonly used in much of the world for electrical power?

230 volts and 50 Hz Signup and view all the answers

What is the most common voltage and frequency combination used in North America for electrical power?

120 volts and 60 Hz Signup and view all the answers

What may happen to travellers' portable appliances when used with foreign electrical supplies?

They may be inoperative or damaged Signup and view all the answers

What is the purpose of non-interchangeable plugs and sockets in different regions for electrical power?

Provide protection from accidental use of appliances with incompatible voltage and frequency Signup and view all the answers

Mains Electricity Quiz

Choose a study mode

Podcast

Questions and Answers

What is the most common voltage and frequency combination used in North America?

What is the general-purpose alternating-current electric power supply commonly known as?

What may happen to travellers' portable appliances when used with foreign electrical supplies?

What is the purpose of non-interchangeable plugs and sockets in different regions?

What is the nominal voltage and frequency used in much of the world for electrical power?

What is the form of electrical power that is delivered to homes and businesses through the electrical grid in many parts of the world?

What is the nominal voltage and frequency commonly used in much of the world for electrical power?

What is the most common voltage and frequency combination used in North America for electrical power?

What may happen to travellers' portable appliances when used with foreign electrical supplies?

What is the purpose of non-interchangeable plugs and sockets in different regions for electrical power?

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