Lesson One – Electrical Safety

What are the safe working procedures in a construction environment?

• Wearing personal protective equipment (PPE) at all times.

• Ignoring safety signs and signals.

• Using damaged tools and equipment.

• Working alone in hazardous areas.

The purpose of the occupational safety and health administration is to:

• Ensure workplace safety and health standards

• Provide financial assistance to businesses

• Regulate international trade policies

• Manage employee benefits programs

Identify electrical hazards and how to avoid or minimize them in the workplace.

• Electrical hazards can be identified and minimized by regular inspections and using proper protective equipment.

• Electrical hazards are unavoidable and cannot be minimized.

• Ignoring electrical hazards is the best way to deal with them.

• Electrical hazards are only a concern in outdoor environments.

Which of the following are safety issues concerning lockout and tagout procedures, personal protection using assured grounding and isolation programs, confined space entry, respiratory protection, and fall protection?

• Electrical hazards

• Chemical exposure

• Ergonomic risks

• Biological hazards

Describe ways to ensure circuit safety, personal safety, and end user safety.

• By using proper insulation, grounding, and circuit breakers

• By ignoring safety protocols

• By using outdated equipment

• By overloading circuits

How many construction workers die each year from electrocution?

• 100

• 200

• 300

• 400

How much electricity is dangerous to the human body?

• 1000μA

• 30mA

• 5V

• 50W

Which of the following is not a primary factor affecting the severity of a shock?

• Size of wire

• Amount of current

• Path of current

• Duration of shock

What kind of ladder should you use when working near power lines or while doing wiring?

• Wooden ladder

• Aluminum ladder

• Fiberglass ladder

• Steel ladder

Which does GFCI stand for?

• GFCI stands for Ground Fault Circuit Interrupter.

• GFCI stands for General Fault Circuit Interrupter.

• GFCI stands for Ground Fault Current Indicator.

• GFCI stands for General Fault Current Indicator.