Safety Tools and Lab Guidelines

You notice your classmate connecting jumper wires to a powered Arduino board without checking the wiring. What is the risk, and what should you do?

• Ignore it since it's not your project

• Tell the teacher and ask your classmate to turn off power first

• Push the wires in for them

• Unplug their board without asking

A group leaves their breadboard circuit connected to a power source and leaves the lab.
What are the possible consequences?

• Nothing happens; circuits are always safe

• The project might complete itself

• Components may overheat or get damaged

• The power will automatically shut off

A student pulls the USB cable out of the Arduino Uno by yanking the cord instead of holding the connector.
What could happen?

• They save time

• They accidentally break the USB port or damage the board

• The code deletes itself

• The board runs faster

Your classmate is cutting wires using scissors instead of a wire cutter.
What would you advise them?

• Scissors are okay for electronics

• It’s faster that way

• It’s unsafe and may damage the tool or hurt them

• Nothing, it’s their choice

Someone is working on their Arduino project with wet hands after washing.
Why is this dangerous?

• It's not a problem; hands will dry

• Moisture can damage components or cause short circuits

• Water makes the code run better

• It helps in cooling the components

A student is in a hurry and doesn’t check the polarity of the LED before inserting it into the breadboard.
What might happen?

• The LED may light up twice as bright

• The LED could be permanently damaged

• The project will work better

• The Arduino will fix the wiring

You see that your anti-static mat is unplugged and not grounded.
What should you do?

• Keep working anyway

• Plug it back in and make sure it’s grounded

• Use it as a cushion

• Inform your classmate but continue without it

You’re done working but forget to return your components in their proper container.
Why is this a problem?

• Someone else might use your parts

• Components could get lost or mixed up

• Teachers like to clean

• It doesn’t really matter

A classmate jokes around by poking others with the soldering iron (though it's not hot).
How should this be handled?

• Laugh and ignore

• Join in

• Report to the teacher; safety tools are not toys

• • Take the soldering iron from them forcefully

You’re unsure how to use the multimeter for a voltage test.
What should you do?

• Guess and test each setting until it works

• Ask your classmate for help

• Ask the teacher or refer to instructions

• Skip the voltage test