One of the most important things for a technician to remember when dealing with electrical circuits is to _______________ them.

• Avoid

• Disconnect

• Respect

• De-energize

Which of the following can occur when electrical current flows through the human body?

• Death

• Serious injury

• Experience a stinging sensation

• All the choices are possible

A person will experience electric shock if their body becomes part of an electrical circuit by making contact with the ____________________.

• L1 and L2 conductors in a disconnect switch

• All of the choices will result in electrical shock

• L1 and neutral conductors on a furnace

• L2 and grounding conductors on a condensing unit

Which of the following paths of electrical current flow through the body has the highest risk of causing severe injury or death?

• From the left hand to the left elbow

• From the right hand to the left hand

• From the right knee to the right foot

• From the thumb to the index finger on the right hand

Which of the following choices is a potential hazard technicians face when working with electricity?

• Electrical shock

• Fire

• All of the choices are correct

• Arc flash and burns

How often is the National Electrical Code revised?

• Every five years

• Every eight years

• Every four years

• Every year

Which article in the National Electrical Code specifically covers air conditioning and refrigeration equipment?

• Article 400

• Article 440

• Article 540

• Article 300

The National Electrical Code is published by the __________________________.

• National Fire Protection Association

• National Electrical Code Council

• American Electricity Safety Association

• U.S. Department of Energy

What should a technician do if they need to plug a grounded metal drill with a three-prong plug into an older receptacle made for two-prong plugs?

• Tell the customer the work cannot be completed

• Break off the third (ground) prong so the plug will fit the receptacle

• Purchase a portable generator to power the drill

• Use a grounding adapter to connect the drill to the receptacle

Which of the following electrical devices is designed to protect electrical circuits from excessive current flow?

• Ground fault circuit interrupters and circuit breakers

• Fuses and circuit breakers

• Arc fault circuit interrupters and ground fault circuit interrupters

• Thermal overloads and fuses