Ohmmeter Scale Masters: The Ultimate Challenge

What is the primary function of an Ohmmeter?

• Measure Voltage

• Measure Current

• Measure Resistance

• Measure Power

What should be done before using an ohmmeter to measure resistance?

• Ensure the circuit is powered on

• Ensure the circuit is de-energized

• Connect the ohmmeter in series with the circuit

• Set the ohmmeter to AC voltage mode

What does an infinite reading on an ohmmeter indicate?

• A short circuit

• An open circuit

• Low resistance

• A properly functioning circuit

Which scale should be selected on an analog ohmmeter to measure high resistance?

• x 1

• x 10

• x 100

• x 1k

What happens if you measure resistance with an ohmmeter on a live circuit?

• Accurate resistance reading

• Possible damage to the ohmmeter

• Increased battery life of the ohmmeter

• Improved measurement accuracy

What does a zero ohm reading on an ohmmeter typically indicate?

• High resistance

• No continuity

• Continuity or a short circuit

• An open circuit

What is the first step when calibrating an analog ohmmeter before use?

• Short the test leads together

• Measure a known resistor

• Set the range to the highest setting

• Replace the batteries

An ohmmeter scale is a __________ scale.

• Linear

• Non-Linear

• Voltage

• Power

What is the formula in getting the value per line of each division in the ohmmeter scale?

What is the value of each calibration if the tester pointer is in the range of 10 ohms to 20 ohms?

• 0.2 Ohm

• 0.5 Ohm

• 1 Ohm

• 2 Ohms