Measuring Resistance

What is the symbol for ohms?

• Alpha

• Beta

• Omega

• Gamma

What color probe is plugged into the common slot on a multimeter?

• Black

• Red

• Green

• Blue

What should you do before measuring resistance on a circuit board?

• Remove all resistors

• Increase the circuit's power

• Turn the power on

• Ensure no power is going to the circuit board

What does a multimeter display if there's no connection?

• Error

• 1

• OL

• 0

What unit is resistance measured in?

• Ohms

• Watts

• Volts

• Amps

What happens when you touch the two probes together while measuring resistance?

• It shows the maximum resistance

• Nothing happens

• The multimeter turns off

• It shows a reading indicating a closed loop

What does it mean if the multimeter reads '1' while measuring resistance?

• Short circuit

• No connection

• Maximum resistance

• Perfect conductor

How can you get a more accurate reading when measuring resistance?

• By using a higher scale

• By reversing the probes

• By using a lower scale

• By changing the battery

Is resistance directional?

• Yes, it changes with direction

• Yes, but only in AC circuits

• No, it's non-directional

• No, but it changes with temperature

What should you subtract from your reading to get the actual resistance of a resistor?

• The maximum resistance

• The resistance of the air

• The resistance of the probes themselves

• The minimum resistance