OSHA 10 Electrical Safety Quiz & Flashcards for Exam

Questions and Answers

OSHA's electrical standards are based on:

Suggestions submitted by industry and ad hoc committees

ANSI standards

NIOSH regulations

The NEC (correct)

What are the four main types of electrical injuries?

Fractures, burns, neurological circuit disruption, heart attack

Falls, concussions, arrhythmia, burns

Electrocution, electric shock, burns, indirect (e.g., a fall from a ladder) (correct)

Electrocution, paralysis, loss of bone density, emotional trauma

Electricity travels in closed circuits, and its normal route is through a conductor. Electric shock occurs when:

The circuit becomes part of the conductor

The body becomes part of the circuit (correct)

Static electricity gathers outside the circuit

Electricity jumps its normal path and strikes a person

A shock's severity depends on:

All of the above Signup and view all the answers

Electrical burns are the most serious of the three major types of burns, and most often occur:

On the hands, from direct contact with current Signup and view all the answers

Hot wires, ungrounded wires that can cause a shock if you touch them, are usually:

Black or red Signup and view all the answers

More than 50 percent of electrocutions are caused by a worker coming in direct contact with:

Energized power lines Signup and view all the answers

The OSHA standard requires flexible cords to be rated for:

Hard or extra-hard usage Signup and view all the answers

What is the most frequent violation of OSHA electrical standards?

Improper grounding of circuitry and equipment Signup and view all the answers

The three elements of a basic program for electrical safety are:

Recognize, evaluate and control Signup and view all the answers

All portable electric tools that are damaged shall be:

Removed from use and tagged 'Do Not Use' Signup and view all the answers

If you have a three-prong plug and a two-hole receptacle, it is acceptable to:

Use an adapter with an adapter wire connected to a known ground Signup and view all the answers

All hazards involved in the use of power tools can be prevented by following five basic safety rules: Keep all tools in good condition with regular maintenance; examine each tool for damage before use; operate according to the manufacturer's instructions; provide and use the proper protective equipment; and:

Use the right tool for the job Signup and view all the answers

Live parts of electric equipment operating at 50 volts or more must be:

Guarded against accidental contact Signup and view all the answers

While any employee is exposed to contact with parts of electric equipment or circuits that have been deenergized, the circuits energizing the parts shall be:

Locked out or tagged out or both Signup and view all the answers

AEGCPs are implemented on construction sites to oversee:

All of the above Signup and view all the answers

A ground-fault circuit interrupter (GFCI) protects workers from shock by:

Matching the amount of current going into an electrical device against the amount returning from the device and shutting down power if a ground fault is detected Signup and view all the answers

The majority of today's power line accidents occur because:

Of failure to maintain proper work distances Signup and view all the answers

Study Notes

OSHA Electrical Safety Standards

OSHA's electrical standards are primarily based on the National Electrical Code (NEC).
ANSI standards and NIOSH regulations play a lesser role in guiding these standards.

Types of Electrical Injuries

Main electrical injuries include electrocution, electric shock, burns, and indirect injuries (e.g., falls).

Mechanism of Electric Shock

Electric shock occurs when the body becomes part of the electrical circuit.

Severity of Electric Shock

Shock severity is influenced by exposure time, current amount, frequency, and current path.

Electrical Burns

The most serious burns from electricity typically occur on the hands due to direct contact.

Identification of Hot Wires

Hot wires, which can cause shock, are usually colored black or red.

Causes of Electrocution

Over 50% of electrocutions result from direct contact with energized power lines.

Flexible Cord Requirements

Flexible cords must be rated for hard or extra-hard usage as per OSHA standards.

Common Electrical Violations

The most frequent OSHA electrical standard violation is improper grounding of circuits and equipment.

Electrical Safety Program Elements

A basic electrical safety program involves recognizing, evaluating, and controlling hazards.

Handling Damaged Tools

Damaged portable electric tools should be removed from use and tagged "Do Not Use."

Plug and Receptacle Use

For a three-prong plug with a two-hole receptacle, an adapter with a grounded wire is acceptable.

Power Tool Safety Rules

Follow five basic rules including keeping tools in good condition and using the right tool for the job.

Protection from Electric Contact

Live parts over 50 volts must be guarded against accidental contact to ensure worker safety.

Lockout/Tagout Procedures

Circuits that can be accessed must be locked out or tagged out to prevent accidental energization.

AEGCP Implementation

AEGCPs oversee power connections, cord sets, and receptacles that are not part of a building structure.

Ground-Fault Circuit Interrupter (GFCI)

GFCIs protect from shock by monitoring current input and output, shutting down if an imbalance is detected.

Power Line Accident Causes

Most power line accidents stem from failures to maintain proper work distances.

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Description

Test your knowledge on OSHA's electrical safety standards with this final quiz. Covering key concepts and regulations, this quiz will prepare you for safe practices in the construction industry. Be sure to review each question and answer before taking the test.

OSHA 10 Construction Final Test: Electrical Safety