Electrical Measurement Quiz

What is the purpose of connecting an ammeter in series with a circuit?

• To measure voltage

• To measure current

• To measure resistance

• To measure power

Why must an ammeter have a very low resistance?

• To increase voltage

• To prevent affecting current flow

• To measure power accurately

• To reduce energy consumption

How should a voltmeter be connected in a circuit?

• In series with the circuit

• In parallel with the system or load

• In series with the load

• In parallel with the ammeter

What characteristic must a voltmeter have to avoid affecting the circuit?

• Very low resistance

• Very high resistance

• Moderate resistance

• No resistance

A wattmeter is a combination of which two instruments?

• Voltmeter and ohmmeter

• Ammeter and ohmmeter

• Voltmeter and ammeter

• Ammeter and galvanometer

What is the main learning outcome for students in this handout?

• Understand the history of electrical science

• Understand standard units of measurement in electrical installation

• Understand the design of electrical circuits

• Understand the manufacturing of electrical components

Which electrical quantity is NOT mentioned in the range of measurements?

• Resistance

• Inductance

• Power

• Energy

How do you calculate the energy used by an appliance?

• Power rating divided by time

• Power rating multiplied by time

• Voltage multiplied by current

• Current divided by resistance

If a 3kW appliance is used for 6.5 hours, how many units of energy are consumed?

• 19.5 units

• 9.5 units

• 13.5 units

• 16.5 units

What does the diagram in the document likely illustrate?

• Circuit breaker connections

• Energy meter connections

• Battery connections

• Transformer connections