Welcome to your 18th Edition 60 mins
1.
A simple method to allow for measured values of loop impedance to be effectively compared with BS7671 tabulated maximum values, is to correct these maximum values by multiplying them by?
2.
Which of the following would be defined as a live part?
3.
A permanent warning notice must be fixed at or near the point of connection, of every earthing conductor to an earth electrode bearing the words?
5.
In a location containing a bath or shower supplementary bonding may be omitted, amongst other conditions, where?
6.
Which of the following may be used to provide emergency switching for a motor?
7.
Which of the following electrical installations is not covered by BS 7671: 2022
8.
With reference to the nature of the supply, which one of the following can be determined by calculation, enquiry or measurement?
9.
The maximum disconnection time for a circuit supplied by a reduced low voltage system using a 110 V midpoint earthed transformer is
10.
A radial final circuit feeding socket-outlets supplying several items of data processing equipment, has a total protective conductor current in normal service of 18 mA. This circuit must have a high integrity protective conductor
11.
Which of the following is an SPD?
12.
One recommendation under part 1 regarding electrical installations is
13.
Which one of the following protective measures is not applicable to equipment in Zone 2 of a swimming pool?
14.
In the PEI concept of a Prosumer's Low Voltage Electrical Installation, what piece of Electrical Equipment is considered to be both a load and a generator?
15.
For an agricultural location, in order to provide automatic disconnection of supply in circuits other than socket-outlet circuits, a disconnection device shall be installed having a maximum rated residual operating current of?
16.
Which of the following forms part of the assessment of general characteristics?
17.
The minimum insulation resistance between conductors for an extra-low voltage circuit is?
18.
What is the maximum Zs for a TT system with a BS EN 64009 30mA RCD?
19.
Which of the following systems shall not be used to supply equipment used in repair and alteration work on construction sites?
20.
20A final circuit is the wiring between?
21.
Which of the following, is the symbol for a "class P" thermally protected independent lamp ballast permitted for mounting on a flammable surface?
22.
A high rise building with a high density occupation means of evacuation has a utilisation code of
23.
With reference to the nature of the supply, which one of the following can be determined by calculation, enquiry or measurement?
24.
The maximum value of voltage drop for lighting in a low voltage installation, supplied from a public distribution system is?
25.
A 230V 13A socket radial circuit is protected by a Type B 20A mcb to BS EN 60898. The maximum value of earth fault loop impedance to ensure compliance with shock constraints is:
26.
What will be the operating time for a 60A BS 3036 protective device when the value of fault current is 205A:
27.
A firefighters switch, shall be provided in the low voltage circuit supplying exterior electrical installations and interior discharge lighting operating at?
28.
The minimum information contained on a periodic inspection and testing notice would be the?
29.
What is the maximum Zs for a 32A type B circuit breaker protecting a standard ring final circuit?
30.
When providing fault current protection for 2 conductors in parallel a fault current protective device shall be provided at: