DOMAIN 1: UNIT 2: Electrical Hazards Flashcards
(15 cards)
What voltage level requires the use of electrical safety gloves according to OSHA standards?
A) 30 volts
B) 50 volts
C) 100 volts
D) 150 volts
B) 50 volts
What is the minimum distance untrained and unauthorized employees must maintain from energized parts?
A) 3 feet
B) 6 feet
C) 10 feet
D) 15 feet
C) 10 feet
Which of the following is the most critical component for preventing accidental startup during maintenance of electrical equipment?
A) Tagout devices
B) Emergency stop mechanisms
C) Lockout devices
D) Ground fault circuit interrupters
C) Lockout devices
Which of the following is NOT a key factor in determining the severity of an electrical shock?
A) Amount of current
B) Duration of contact
C) Path of the electrical current
D) Voltage of the electrical source
D) Voltage of the electrical source
Under OSHA’s lockout/tagout regulations, how often should employees be retrained on procedures?
A) Every 6 months
B) Annually for affected employees
C) When new equipment is installed
D) Both B and C
D) Both B and C
Why is tagout alone not considered an approved method in OSHA lockout/tagout procedures?
A) It is not effective in preventing equipment start-up
B) It does not indicate the equipment is under maintenance
C) It does not provide a physical barrier
D) It is too difficult to implement
A) It is not effective in preventing equipment start-up
Which of the following is NOT a responsibility of employers under the GFCI protection requirements?
A) Providing GFCI protection for power tools
B) Maintaining written documentation of the electrical safety program
C) Ensuring GFCI protection is provided for all outlets in residential buildings
D) Designating a competent person to implement the GFCI program
C) Ensuring GFCI protection is provided for all outlets in residential buildings
What is the required frequency of inspection for temporary electrical circuits according to OSHA standards?
A) Once a year
B) Every 3 months
C) Every 6 months
D) Once a week
B) Every 3 months
What is the function of a Ground Fault Circuit Interrupter (GFCI)?
A) Prevents the flow of electricity through a circuit
B) Detects imbalances in electrical current flow and shuts off power
C) Limits voltage to prevent electrical shock
D) Provides a ground path for electrical current
B) Detects imbalances in electrical current flow and shuts off power
Which of the following tests is required to ensure electrical grounding continuity in cord sets and receptacles?
A) Continuity test
B) Voltage test
C) Ground circuit test
D) Insulation resistance test
A) Continuity test
Which of the following is a key cause of an arc flash in electrical equipment?
A) Insufficient grounding
B) Damaged insulation or dust buildup
C) Inadequate personal protective equipment
D) Poor training of electrical workers
B) Damaged insulation or dust buildup
What protective equipment is necessary when working near electrical panels with a potential arc flash risk?
A) Insulated gloves only
B) Arc flash-rated protective gear
C) Only safety glasses and hearing protection
D) Fire-resistant clothing
B) Arc flash-rated protective gear
Which of the following statements about portable generators is true according to OSHA standards?
A) The generator’s frame must never serve as the grounding mechanism
B) Vehicle-mounted generators must be bonded to the vehicle frame for grounding
C) Portable generators do not need grounding if they are used indoors
D) All portable generators must have GFCI protection
B) Vehicle-mounted generators must be bonded to the vehicle frame for grounding
What is the purpose of the Assured Equipment Grounding Conductor Program (AEGCP)?
A) To prevent electrical shock from faulty outlets
B) To test electrical tools for overload
C) To ensure proper grounding of equipment that is not permanently wired into a building
D) To monitor electricity consumption
C) To ensure proper grounding of equipment that is not permanently wired into a building
Which of the following is a potential consequence of an arc flash incident?
A) Severe burns from heat and explosion
B) Loss of vision from electrical light exposure
C) Electrical burns only
D) Short-term electrical shock
A) Severe burns from heat and explosion
