Electricity Related Parts Quiz

What is a complete circuit also known as?

• Incomplete circuit

• Open circuit

• Broken circuit

• Closed circuit

What are the special switches in a panel that automatically turn off if the energy flowing through the wires becomes unsafe?

• Outlet

• Power strip

• Circuit breakers

• Fuse

What is the purpose of the insulation around the wires that connect electrical outlets in a building to the electrical circuit panel?

• To prevent electrical energy from flowing into the devices

• To increase electrical energy flow

• To prevent electrical energy from transferring to another structure

• To transfer electrical energy well

What is the ground wire connected to outside the building for?

• To transfer electrical energy well

• To increase electrical energy flow

• To give extra electrical energy a safe place to transfer to

• To prevent electrical energy from flowing into the devices

What is the purpose of the ground wire in the walls of a building?

• To prevent electrical energy from flowing into the devices

• To give extra electrical energy a safe place to transfer to

• To increase electrical energy flow

• To transfer electrical energy well

What do old-fashioned incandescent light bulbs transfer most of the energy into?

• Sound

• Heat

• Kinetic energy

• Light

What percentage of the energy received by a typical LED bulb is transferred into light?

• 5%

• 10%

• 90%

• 85%

What is the main reason LED bulbs are considered more efficient than incandescent bulbs?

• They transfer more energy into heat

• They get hotter and can burn you

• They use less energy to produce light

• They use more energy to produce light

What do the ceramic discs stacked along power lines do?

• Transfer electrical energy well

• Prevent electrical energy from flowing into the devices

• Increase electrical energy flow

• Prevent electrical energy from transferring to another structure

What is the purpose of the path of a ground wire?

• To increase electrical energy flow

• To give extra electrical energy a safe place to transfer to

• To transfer electrical energy well

• To prevent electrical energy from flowing into the devices