Electric Unit Slides

Multiple Choice

Which of the following is a common application of electricity in households?

• Lighting rooms with bulbs

• Cooking with wood fire

• Writing with a pencil

• Watering plants manually

Open Ended

Why do you think understanding electrical principles is important in our daily lives?

Multiple Choice

Which of the following statements correctly describes the relationship between watts, volts, and amps?

• Watt = Volts x Amps

• Watt = Amps / Volts

• Watt = Volts + Amps

• Watt = Amps - Volts

Multiple Choice

Which device protects circuits from overload by tripping to break or open the circuit?

• Circuit breaker

• Fuse

• Resistor

• Capacitor

Multiple Choice

When a short-circuit takes place, the fuse wire melts and breaks the __________.

• circuit

• electric shock

• Earth

• kilowatt-hour.

Open Ended

Explain the difference between a circuit breaker and a fuse in protecting electrical circuits.

Open Ended

List three materials that are considered electrical insulators

Multiple Select

Which of the following materials are electrical conductors?

• Copper

• Rubber

• Glass

• Gold

Multiple Choice

Why are the wires covered in plastic?

• keeps the wire from scratching stuff
• makes a nice coil
• it is a conductor
• keeps you from getting shocked

Multiple Choice

Which organization publishes the National Electric Code (NEC)?

• National Fire Protection Association (NFPA)

• Underwriter Laboratories (UL)

• Occupational Safety and Health Administration (OSHA)

• American National Standards Institute (ANSI)

Multiple Choice

What is the main purpose of Underwriter Laboratories (UL) in relation to electrical wiring?

• Testing wiring materials and devices for safety

• Publishing the National Electric Code

• Promoting fire protection science

• Manufacturing electrical devices

Multiple Select

Which of the following are recommended safety precautions when working with electrical wiring?

• Wear boots or shoes with rubber heels

• Wear clothing made of materials low in flammability

• Wear sandals

• Wear loose, synthetic clothing

Multiple Choice

Which of the following is a recommended safety precaution when using electrical outlets and extension cords?

• Ground all outlets and switches to prevent shock.

• Use extension cords under carpets to avoid tripping.

• Leave outlets ungrounded for convenience.

• Use damaged extension cords for temporary setups.

Open Ended

Explain why standing in water or touching switches with wet hands increases the risk of electrical shock.

Open Ended

Why is it dangerous to touch someone who is undergoing electrical shock?

Multiple Choice

Which actions should you take before beginning electrical work to ensure safety?

• Turn circuit breakers to the 'off' position

• Leave circuit breakers on for testing

• Ignore the fuse block

• Touch all wires to check for current

Multiple Choice

Before replacing parts such as bits, blades, or discs on any tool, it is important to

• disconnect the power source

• recharge the tool's battery

• polish it with fine steel wool

• check the tool's oil level

Multiple Choice

What are the two deadliest hazards associated with electricity mentioned in the safety precautions?

• Shock and fire

• Electrocution and water

• Short circuit and explosion

• Overload and sparks

Multiple Choice

Which tool is used for protecting electrical circuits from overload?

• Fuse puller

• Electric multimeter

• Circuit breaker

• Insulation tester

Poll

How many of these tools have you used before?

• None of them

• Some of them

• All of them

Open Ended

How might we determine what wire to use for a project?

Word Cloud

When you see a "W" in the wire name, what should you think?

Word Cloud

When you see a "U" in the wire name, what should you think?

Multiple Choice

Which wire is typically used in a residential setting?

• UF

• TW

• Romex

• LB

Open Ended

List one characteristic of a conduit

Multiple Choice

What type of receptacle is this?

• Single 240V

• Duplex

• Dryer

• Outdoors

Multiple Choice

What would we expect a single pole switch to say?

• Start/Stop
• Activate/Deactivate
• ON/OFF
• Power/Reset

Open Ended

What makes a three-way switch different from a four-way switch

Multiple Select

What is this piece of equipment?

• Blank cover

• Wall plate

• Cable connector

• Solderless wire nut

Multiple Choice

What is the image showing how to do?

• Pigtail splice in switch plate

• Western union splice in wire nut

• Pigtail splice in wire nut

• Western union splice in switch plate

Open Ended

What is one key concept you learned about electrical principles in this lesson?