Residential Wiring Ch.1 Exam

The resistance of the human body remains the same, regardless of conditions.

True or False

• True

• False

Copper is not a conductor of electricity, because only materials that are magnetic can conduct electricity.

True or False

• False

• True

Tags

NGSS.HS-PS2-5

The National Electrical Code gives minimum safety standards for electrical work and is not intended to be a “How-To” manual.

True or False

• True

• False

If a 120-volt branch circuit is feeding a load that has 20 ohms of resistance, the amount of current flowing on the circuit will be 7 amperes.

True or False

• False

• True

Many employers around the country require workers to have the OSHA 10 or OSHA 30 card before they are hired.

True or False

• True

• False

Tags

NGSS.HS-ETS1-3

Always wear the proper personal protective equipment and test the equipment for voltage before working on electrical equipment.

True or False

• False

• True

The unit of measure for electrical current flow is the ________.

• Ampere

• Ohm

• Volt

• Watt

Which of the following materials is not considered a conductor?

• Aluminum

• Copper

• Glass

• None of the above

The force that causes electrons to move from atom to atom in a conductor is called ________.

• Amperage

• Ohms

• Voltage

• Watts

Which of the following materials are considered insulators?

• Plastic

• Porcelain

• Rubber

• All of the above

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4