18 Edition Part 7 (a)

In Horticultural premises using ADS (Automatic Disconnection of Supply) as a protective measure, what is the maximum RCD rating for final circuits supplying socket-outlets with a rated current more than 32 amps?

• 100 mA

• 30 MA

• 30 mA

• 300 mA

Answer explanation

Amendment 2 (Brown Book) Reference: Page 260, section 705.411.1 (ii)

If the space under a shower can only be accessed with the use of a tool, what Zone is that space classed as?

• Outside the Zones

• Zone 0

• Zone 1

• Zone 2

Answer explanation

Amendment 2 (Brown Book) Reference: Page 242, section 701.32.3, description of "Outside the zones"

Exterior electrical equipment is to be installed on a camping site for the tent pitch supplies; for protection against the presence of water the equipment must meet which degree of protection?

• IP2X

• IP4X

• IPX2

• IPX4

Answer explanation

Amendment 2 (Brown Book) Reference: Page 268, section 708.512.1.1

The highest diving board at a public swimming pool is situated at a height of 7.5 metres above floor level, what is the height zone 1 extends to?

• 10.00 m

• 12.5 m

• 15.0 m

• 7.50 m

Answer explanation

Amendment 2 (Brown Book) Reference: Page 247, section 702.3.2 (ii)

The requirements of section 709 apply to?

• Circuits intended to supply pleasure crafts

• Equipment on board ships

• Supply to houseboats supplied directly from the public supply

• The internal electrical circuits of pleasure craft or houseboats

Answer explanation

Amendment 2 (Brown Book) Reference: Page 271, section 709.1

Which of the following methods is the 'strongly preferred' method for providing protection against electric shock when using portable hand-lamps when working in confined of damp locations on a construction site?

• Automatic disconnection of supply

• Electrical separation of circuits

• Reduced low voltage supplies

• SELV

Answer explanation

Amendment 2 (Brown Book) Reference: Page 258, section 704.410.3.10

Which core in a multi-core cable used in a motor home, shall be used to supply the reversing light?

• Core 2

• Core 4

• Core 6

• Core 8

Answer explanation

Amendment 2 (Brown Book) Reference: Page 319, table A721

What is the maximum nominal single-phase a.c. voltage for a Circus?

• 110 V

• 230 V

• 240 V

• 400 V

Answer explanation

Amendment 2 (Brown Book) Reference: Page 341, section 740.313.1.1

What is the maximum length of a 3-core caravan cord extension cable?

• 21 mm

• 22 m

• 25 m

• 27 m

Answer explanation

Amendment 2 (Brown Book) Reference: Page 319, section 721.55.2.6 (ii)

In a bathroom the shower head is fixed at a height of 1.5 metres above the floor level, and the tap controls are fixed at a height of 1 metre above the floor level. Zone 2 is limited by the horizontal plane lying above the finished floor level at?

• 1.5 metres

• 2.0 metres

• 2.25 metres

• 3.0 metres

Answer explanation

Amendment 2 (Brown Book) Reference: Page 242, section 701.32.4 (i)