#1
What does the acronym 'OSHA' stand for in the context of electrical safety?
Occupational Safety and Health Administration
ExplanationRegulatory body ensuring workplace safety standards.
#2
Which of the following is NOT a recommended precaution when working with electricity?
Using damaged electrical cords
ExplanationDamaged cords increase risk of electrical hazards.
#3
Why is it important to properly label electrical panels and circuits?
To ensure compliance with regulations
ExplanationFacilitates quick identification and safety compliance.
#4
What should be done if someone receives an electrical shock?
Call emergency medical services (EMS) and provide first aid
ExplanationPrompt action is crucial for victim's safety.
#5
Why is it important to inspect and maintain electrical equipment regularly?
To identify and address potential hazards before they cause harm
ExplanationPrevents accidents through proactive maintenance.
#6
Why should you avoid using extension cords as permanent wiring solutions?
They can lead to overloading and overheating
ExplanationPrevents electrical hazards and potential fires.
#7
Why is it important to use insulated tools when working on electrical systems?
To reduce the risk of electric shock
ExplanationProtects workers from direct contact with live circuits.
#8
What is the purpose of a ground fault circuit interrupter (GFCI)?
To protect against electric shock
ExplanationDetects imbalances in electrical flow to prevent shocks.
#9
Which of the following is a recommended safety measure when using electrical appliances?
Regularly inspecting cords and plugs for damage
ExplanationPrevents potential hazards from faulty equipment.
#10
What is the recommended distance for keeping flammable materials away from electrical equipment?
At least 3 feet
ExplanationPrevents potential fire hazards from ignition.
#11
Which of the following is NOT a safe practice when working on electrical systems?
Working alone without any assistance
ExplanationCollaboration enhances safety and response.
#12
Which of the following types of fire extinguisher is suitable for use on electrical fires?
Class C
ExplanationDesigned to extinguish fires involving electrical equipment.
#13
What is the recommended action in case of an electrical fire?
Use a fire extinguisher rated for electrical fires or smother the fire with a non-conductive material
ExplanationSafely extinguishes fire without adding to electrical hazards.
#14
What is the purpose of a 'lockout/tagout' procedure in electrical safety?
To secure electrical equipment from unauthorized access
ExplanationPrevents accidental energizing during maintenance.
#15
What is the purpose of a lockout/tagout procedure in electrical safety?
To prevent unauthorized access to electrical equipment
ExplanationEnsures safe maintenance by controlling access.
#16
What is the purpose of an arc flash risk assessment?
To estimate the potential exposure to arc flash hazards
ExplanationIdentifies and mitigates risks from sudden energy release.
#17
What is the purpose of a 'hot work permit' in electrical safety?
To prevent fires and explosions during maintenance or construction activities
ExplanationEnsures precautions are taken for high-risk activities.
#18
What should you do if you encounter a downed power line?
Immediately exit the vehicle and call emergency services
ExplanationMinimizes risk of electric shock or injury.