2391-50 Extra questions for MC paper 1

What is the primary purpose of initial verification?

The Regulation in the Electricity at Work Regulations 1989 relating to ‘means for cutting off the supply and for isolation’ is which of the following?

Records of which of the following do not form part of the certification issued on completion of the initial verification of a new installation?

Fuses used in test leads for use with a voltage detection instrument should not usually exceed which of the following?

For which of the following may a Minor Electrical Installation Works Certificate be issued as an alternative to an Electrical Installation Certificate?

If additional protection was provided where cables were concealed in a wall at a depth of < 50mm, what would the inspector need to verify?

What is the minimum permitted level of IP protection for a metal trunking housing where non-sheathed cables are installed?

A new motor has been installed in a workshop, what would the inspector need to look for when verifying adequate undervoltage protection?

What is the correct procedure if while undertaking an inspection it is found that a cable has been found to be defective during initial verification?

What must be done with a low resistance ohmsmeter to ensure accurate results are obtained each time it is used?

When using an insultation resistance tester, what are the three main test voltages provided on the test instrument?

Why is the continuity test the first test to be carried out on a particular circuit?

Questions 29 – 32 relate to the following scenario

A continuity of cpc test is to be carried out on a two-way radial lighting circuit. It is wired in 70oC Thermoplastic flat twin and earth having 1.5/1mm2 copper conductors. The circuit length is 27m and the ambient temperature at the time of testing was 20oC

A continuity of cpc test is to be carried out on a two-way radial lighting circuit. It is wired in 70oC Thermoplastic flat twin and earth having 1.5/1mm2 copper conductors. The circuit length is 27m and the ambient temperature at the time of testing was 20oC

A continuity of cpc test is to be carried out on a two-way radial lighting circuit. It is wired in 70oC Thermoplastic flat twin and earth having 1.5/1mm2 copper conductors. The circuit length is 27m and the ambient temperature at the time of testing was 20oC

What is the reason for the prospective fault current test?

A three-phase installation contains 3 distribution boards DB1 (3 phase), DB2 (single phase) and DB3 (3 phase) and an Ipf test was undertaken at DB 1 with a measured result of 8kA.

Where else must the test be undertaken within this installation?

What is the time the BSEN 61009 RCBOs should trip within when tested at 1 x I∆N?

When testing an RCBOs for sensitivity, what test current is applied?

The test button on a RCBO is fitted for what reason?

While undertaking an earth electrode test the following results were obtained:

Which one of the following factors would affect voltage drop?

When verifying polarity on an ES lamp holder having a metallic thread, what are you actually verifying at the lamp holder?

What is the minimum acceptable insulation resistance for a FELV circuit?

An earth fault loop impedance test instrument conforming to BS EN 61557-3 is designed to avoid the presence of fault voltages exceeding which of the following at the point of measurement on the circuit under test?