TLE 7_summative test

Emily is using a VOM to measure the resistance of a wire. Which unit of measurement should she look for?

• Volts (V)

• Amperes (A)

• Ohms (Ω)

• Watts (W)

If a VOM is set to measure voltage, which port should the red probe be inserted into?

• VΩmA

• COM (Common)

• 10A

• Ground

A tachometer is used to measure:

• Voltage

• Resistance

• Electrical current

• Speed of rotation (RPM)

What does a volt-ohm-milliammeter (VOM) measure?

• Pressure, flow, and resistance

• Voltage, resistance, and current

• Temperature, pressure, and volume

• Speed, torque, and power

 Emily is testing a motorcycle engine’s rotational speed. Which device should she use?

• Oscilloscope

• Tachometer

• Ammeter

• Ohmmeter

A tachometer’s reading is given in:

• Revolutions per minute (RPM)

• Volts per second (V/s)

• Amperes per second (A/s)

• Watts per hour (Wh)

What is the primary function of an oscilloscope?

• To measure electrical current

• To visually display voltage waveforms

• To check battery levels

• To determine engine speed

A technician wants to observe an AC voltage signal’s shape over time. Which measuring instrument should be used?

• Volt-ohm-milliammeter

•  Tachometer

• Ohmmeter

• Oscilloscope

What does an ammeter measure?

• Resistance

• Electrical current

• Voltage

• Power

When using an ammeter, it must be connected in:

• Series with the circuit

• Parallel with the circuit

• Any direction

• Only to the ground wire