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WorksheetsElectricity Safety Quiz
Total questions: 30
Worksheet time: 23mins
What does voltage measure in an electric circuit?
The speed of electrons
The force or pressure applied to a circuit
The number of electrons per second
The temperature of the conductor
Which letter symbol is often used for voltage?
V
E
I
R
Which is considered more dangerous to humans?
High voltage
High current
Low resistance
Low voltage
What is the general safe working voltage for most situations?
Below 10 volts
Below 20 volts
Below 30 volts
Below 50 volts
What unit is used to measure electric current?
Volt
Watt
Ampere
Ohm
How many amperes are generally considered potentially dangerous to humans?
0.001 A
0.005 A
0.01 A
0.05 A
Why are birds safe when standing on a single high-voltage wire?
They are immune to electricity
They don’t touch the ground or another wire
They have insulated feathers
The wire has no current
Which of the following situations can cause electrocution on transmission lines?
Touching one wire only
Standing on the ground and touching the wire
Wearing gloves while touching the wire
Being far from the wire
The human body’s resistance is high enough to stop dangerous current flow in which common situation?
Touching wet wires
Touching a 9V battery with dry hands
Standing barefoot in water
Holding two live wires
What is the most important factor in the danger of electric shock?
Voltage level
Wire thickness
Current amount
Type of insulation
What is the function of safety goggles?
Block sunlight
Correct vision
Protect eyes from impact and debris
Keep eyes warm
Which is NOT recommended for a safe work area?
Good lighting
Neat and clean workspace
Working on a metal tabletop
Proper tool usage
Which of the following should be removed before working with tools?
Cap
Gloves
Jewelry
Safety goggles
Why should long hair be tied back during work?
To look professional
To avoid eye irritation
To prevent it from getting caught in tools
To keep it clean
What should you do before repairing an electrical circuit?
Keep it plugged in
Unplug it first
Increase the voltage
Remove the fuse
Why should you avoid a metal tabletop when working with electricity?
Metal attracts dust
Metal is heavy
Metal conducts electricity
Metal is expensive
What can happen if a soldering iron cord gets tangled in its holder?
It can cool down
It can melt and short circuit
It can get stronger
It can lose power
Why should your hands be dry when working with electrical tools?
Wet hands reduce grip
Wet hands increase risk of shock
Wet hands damage tools
Wet hands can burn easier
What happens if you touch both ends of a live circuit?
Nothing
You close the circuit and may get shocked
You become grounded safely
The current stops
What does 5 mA (milliamperes) represent?
Safe voltage limit
Dangerous current level
Maximum battery capacity
Minimum lighting requirement
Why can a 9V battery kill under certain conditions?
It has too much voltage
It can produce dangerous current if skin resistance is low
It overheats instantly
It contains acid
What is the main reason to inspect tools before use?
Save time
Avoid accidents from faulty tools
Maintain warranty
Make them look clean
Which of these is the safest action when a tool malfunctions?
Continue using it until done
Turn it off immediately
Shake it
Test it with wet hands
Why should soldering irons be positioned safely?
They can get stolen
They can roll off the table
They can cause burns if reached over
They can lose heat
What’s the main reason to keep the work area neat?
Easier to find tools
Avoid tripping or accidents
Looks nice for visitors
Keeps dust away
If you touch a live wire while standing on dry rubber matting, what happens?
High current flows
Current is blocked by insulation
Wire melts
Voltage increases
What’s the safest response if someone is being electrocuted?
Grab them immediately
Pull them with a dry, non-conductive object
Throw water on them
Turn off lights
In electrical safety, “Think!” means:
Take breaks often
Plan actions before doing them
Ask someone to do it for you
Avoid learning
Which part of the body is most vulnerable to electric current?
Skin
Brain
Heart
Hair
Why is high current more dangerous than high voltage?
Current causes burns and stops body functions
Voltage is harmless
Voltage only makes sparks
Current makes metal stronger
