Test Intruments

What type of battery-powered 'dual' test instrument?

• Earth electrode tester

• Earth loop impedance tester

• RCD tester

• Insulation resistance and continuity tester

This test instrument measures in mS. What is it?

• Prospective short-circuit current tester

• Earth loop impedance tester

• Earth electrode tester

• RCD tester

This test instrument measures in Ohms and is a 'live' test instrument. What is it?

• RCD tester

• Earth loop impedance tester

• Prospective short-circuit current tester

• Earth electrode tester

Which test instrument also measures in kA and is a 'live' test instrument. What is it?

• RCD tester

• Earth loop impedance tester

• Prospective short-circuit current tester

• Earth electrode tester

Which instrument can be used for Polarity testing?

• Prospective short-circuit current tester

• Earth loop impedance tester

• Earth electrode tester

• Low Ohm Resistance tester

Which safety standards detail test probes requirements and isolation procedures?

• GS99

• GS38

• GS40

• GS27

Which instrument is used to verify the continuity of the earth conductor, whilst the circuit under test is 'live'?

• Earth electrode tester

• RCD tester

• Earth loop impedance tester

• Prospective short-circuit current tester

Which one of the following instruments is not 'mains' supply dependent?

• RCD tester

• Prospective short-circuit current tester

• Earth loop impedance tester

• Earth electrode tester