#1
Which of the following is a safety measure to prevent electrical shocks?
Wearing insulated gloves
Using wet hands while handling electrical equipment
Standing on a wet surface
Working on live circuits without precautions
#2
What does the term 'grounding' refer to in electrical safety?
Connecting electrical circuits to the Earth
Disconnecting electrical circuits
Increasing electrical resistance
Reducing electrical current
#3
What is the function of a multimeter in electrical work?
To measure electrical resistance only
To measure electrical current only
To measure voltage, current, and resistance
To measure voltage and current only
#4
In the event of an electrical shock, what is the first step to take?
Call 911 immediately
Disconnect the power source if safe to do so
Apply ice to the affected area
Start performing CPR immediately
#5
What does the term 'PPE' stand for in electrical safety?
Personal Power Equipment
Personal Protective Equipment
Power Protection Essentials
Power Plant Equipment
#6
In an electrical panel, what is the purpose of a 'circuit breaker'?
To create a closed circuit
To regulate voltage
To interrupt electrical flow in case of overload or short circuit
To store electrical energy
#7
What is the standard voltage for most household electrical outlets in the United States?
110 volts
220 volts
240 volts
120 volts
#8
What does the term 'arc flash' refer to in electrical safety?
A type of electrical wire
An electrical phenomenon where a flashover of electric current leaves its intended path
A type of electrical switch
An electrical tool used for measurements
#9
What is the purpose of a GFCI (Ground Fault Circuit Interrupter) outlet?
To regulate voltage in electrical circuits
To prevent overload in electrical circuits
To interrupt power in case of ground faults
To provide surge protection
#10
Which type of fire extinguisher is suitable for electrical fires?
Water fire extinguisher
Foam fire extinguisher
Carbon dioxide (CO2) fire extinguisher
Dry chemical fire extinguisher
#11
What is the recommended minimum distance for maintaining clearance from energized electrical lines while working?
1 foot
3 feet
5 feet
10 feet
#12
What is the primary purpose of a lockout/tagout procedure in electrical safety?
To secure tools and equipment
To prevent unauthorized access to electrical panels
To ensure proper grounding of electrical circuits
To protect workers from the unexpected startup of machinery or equipment
#13
Which of the following is NOT a proper procedure for electrical lockout/tagout?
Only the person who applied the lock or tag may remove it
Locks and tags must be removed by anyone when needed
Each lock and tag must be applied by only one person
Equipment must be tested to ensure it is de-energized before lockout/tagout is performed
#14
What does the term 'insulation resistance' measure in electrical systems?
Resistance to the flow of electrical current
Resistance to the flow of heat
Resistance to the flow of sound
Resistance to the flow of moisture
#15
Which of the following is NOT a factor to consider when selecting the appropriate wire size for an electrical circuit?
Voltage drop
Wire color
Ampacity
Circuit length
#16
What is the purpose of a 'lockout device' in electrical safety?
To prevent unauthorized access to electrical panels
To secure tools and equipment
To ensure proper grounding of electrical circuits
To physically prevent the operation of machinery or equipment
#17
What is the recommended approach to determine if an electrical circuit is live or de-energized?
Use a voltmeter to measure voltage
Touch the wires to see if there is a spark
Assume all circuits are live until tested
Look for visual indicators such as flickering lights
#18
Which of the following is an example of a 'hazardous location' in terms of electrical safety?
A dry warehouse
A well-ventilated office space
A damp basement
An outdoor playground