Welcome to your 18th Edition 60 mins
1.
A PV convertor shall have a switch-disconnector provided on?
2.
Which one of the following earthing arrangements is shown in the diagram
3.
The image represents which type of earthing system?
4.
The prospective fault current measured at the origin of an electrical installation must be taken into account when
5.
Which of the following may be used to provide emergency switching for a motor?
6.
Accessible street furniture enclosures containing live parts shall only be opened using a?
7.
A device intended for safety reasons to cut off all or part of an installation from every source of electrical energy provides
8.
In a location containing a bath or shower supplementary bonding may be omitted, amongst other conditions, where?
9.
The maximum length of a flexible cord or cable for a caravan connection is?
10.
Non- sheathed cables for fixed wiring, other than protective conductors, should be installed in
11.
If Ze is measured at 0.43Ω and R1+R2 IS measured as 2.3Ω, what is the value of zs ?
12.
Which of the following statements is incorrect?
13.
The minimum insulation resistance between conductors for an extra-low voltage circuit is?
14.
When cables are placed directly in the ground they should be buried at a depth?
15.
BS 7671 does not apply to
16.
Which of the following is not included in the special installations section of the IET regs?
17.
Cables installed in or on steel cable containment systems are deemed to meet the requirements of regulation?
18.
The maximum Zs at operating temperature for a heating circuit with 0.4s disconnection time supplied by a 32A BS88-2 fuse is
19.
What will be the operating time for a 60A BS 3036 protective device when the value of fault current is 205A:
20.
When providing fault current protection for 2 conductors in parallel a fault current protective device shall be provided at:
21.
BS 5839 deals with the system design, installation and servicing of?
22.
BS 7671 defines extra-low voltage AC as not exceeding:
23.
Cables and equipment in circuits feeding motors shall be suitable for a current of at least?
24.
Ommission of an overload device in a motor circuit where loss of supply may cause a greater hazard is
25.
Which of the following, is the symbol for a "class P" thermally protected independent lamp ballast permitted for mounting on a flammable surface?
26.
The maximum value of voltage drop for lighting in a low voltage installation, supplied from a public distribution system is?
27.
20A final circuit is the wiring between?
29.
Which one of the following protective measures is not applicable to equipment in Zone 2 of a swimming pool?
30.
Multicore cables on a perforated tray are covered by reference method?
