Functional Testing of Electrical

Which document provides guidance on the safe and suitable use of electrical test equipment?

• BS 7671
• HSE GS38
• NICEIC Guidance
• IET Wiring Regulations

What is the maximum recommended length of exposed conductor on test probes?

• 1 mm
• 2 mm
• 4 mm
• 6 mm

What is the primary purpose of a voltage indicator and proving unit?

• To test voltage and continuity
• To measure current
• To check polarity
• To confirm the voltage indicator is functioning

Which of these can a multimeter be used to check?

• Resistance
• Current
• Voltage
• All of the above

What is the main purpose of a clamp meter?

• To measure resistance
• To measure voltage
• To measure current
• To measure impedance

Which of the following tests cannot be carried out using a continuity tester?

• Insulation resistance
• Earth loop impedance
• Polarity
• Resistance

What is the main purpose of an earth loop impedance tester?

• To check the integrity of the earth connection
• To verify the trip time of overcurrent protection
• To measure the resistance of the earthing system
• All of the above

What is the main function of a socket tester?

• To check voltage
• To check polarity
• To check continuity
• To check resistance

When should live electrical tests be carried out?

• Never
• Only by a Part P qualified person
• Only when the system is isolated
• As required by BS 7671

What should be done before commencing live testing?

• Ensure power is isolated
• Inform others in the vicinity
• Place signs and barriers
• All of the above