Testing and Measurement of Electrical Circuits Quiz…

Q: Which instrument is used to measure voltage?

Voltmeter — Voltmeter measures the potential difference across a circuit element.

Q: What unit is used to measure electrical current?

Ampere (A) — Current is measured in Amperes, often abbreviated to Amps.

Q: Which instrument is used to measure resistance?

Ohmmeter — Ohmmeter specifically measures the resistance of a component or circuit.

Q: An ammeter is connected in _____ with the circuit element.

Series — Ammeters measure current, therefore placed in series to measure total current flow.

Q: A voltmeter is connected in _____ with the circuit element.

Parallel — Voltmeters measure voltage difference, so connected in parallel to the element.

Q: What instrument measures electrical power?

Wattmeter — Wattmeters measure power, which is the product of voltage and current.

Q: What is the primary function of a multimeter?

Measure voltage, current, and resistance. — Multimeters offer a variety of measurement functions in a single device.

Q: What does 'continuity testing' determine?

If a complete path exists for current flow. — Continuity testing checks if there's a complete, unbroken pathway for the current.

Q: Which of these is NOT a common measurement taken in electrical circuits?

Temperature — Temperature is not directly measured by typical electrical instruments in a circuit.

Q: Before measuring resistance with an ohmmeter, the circuit should be...

Disconnected from the power source — Always de-energize a circuit before measuring resistance to avoid damage and inaccurate readings.

Question 1 of 10

Which instrument is used to measure voltage?

Voltmeter measures the potential difference across a circuit element.

Question 2 of 10

What unit is used to measure electrical current?

Current is measured in Amperes, often abbreviated to Amps.

Question 3 of 10

Which instrument is used to measure resistance?

Ohmmeter specifically measures the resistance of a component or circuit.

Question 4 of 10

An ammeter is connected in _____ with the circuit element.

Ammeters measure current, therefore placed in series to measure total current flow.

Question 5 of 10

A voltmeter is connected in _____ with the circuit element.

Voltmeters measure voltage difference, so connected in parallel to the element.

Question 6 of 10

What instrument measures electrical power?

Wattmeters measure power, which is the product of voltage and current.

Question 7 of 10

What is the primary function of a multimeter?

Multimeters offer a variety of measurement functions in a single device.

Question 8 of 10

What does 'continuity testing' determine?

Continuity testing checks if there's a complete, unbroken pathway for the current.

Question 9 of 10

Which of these is NOT a common measurement taken in electrical circuits?

Temperature is not directly measured by typical electrical instruments in a circuit.

Question 10 of 10

Before measuring resistance with an ohmmeter, the circuit should be...

Always de-energize a circuit before measuring resistance to avoid damage and inaccurate readings.

Testing and Measurement of Electrical Circuits Quiz