BS7671: Part 7 - 10 Questions

1. With reference to the degree of protection of enclosures used in swimming pools where water jets are likely to be used for cleaning purposes, the index of protection must be to:

• a) IPX2

• b) IPX4

• c) IPX5

• d) IPX8

2. When under floor heating is provided in a swimming pool area, the electric heating unit embedded in the floor shall incorporate a metallic sheath connected to:

• a) the supplementary equipotential bonding

• b) the main equipotential bonding

• c) the main earthing terminal of the installation

• d) an independent earth electrode

3. In a touring caravan, instructions must be provided which include information relating to:

• a) bonding arrangements

• b) the use of obstacles to provide basic protection

• c) the position of any gas appliances

• d) a description of the installation

4. In the absence of manufacturers’ guidance, a radiant heater used in the vicinity of livestock should be placed at a distance not less than:

• a) 2.5 m

• b) 2.0 m

• c) 1.5 m

• d) 0.5 m

6. In agricultural premises, final circuits supplying socket-outlets with a rating not exceeding 32 A must be protected by an RCD with a residual operating current not exceeding:

• a) 100 mA

• b) 300 mA

• c) 30 mA

• d) 500 mA

7. All structural metal parts of a caravan that are accessible from within the caravan must be:

• a) placed out of reach

• b) covered in insulating material

• c) bonded to the nearest accessory earthing terminal

• d) connected to the main earthing terminal within the caravan

8. On a dairy farm, the particular requirements of section 705 within the IEE Regulations do NOT apply to:

• a) staff dwellings

• b) milking parlours

• c) buildings used for storing equipment/tractors

• d) barns housing livestock

9. A domestic consumer decides to install a shower cubicle in a room. Any socket outlets within the room shall be:

• a) removed from the room completely

• b) situated at least 3 m from the edge of Zone 1

• c) fixed no more than 0.5 m from the floor

• d) controlled by a double-pole switch

10. Every plug and socket outlet rated at 16 A for use on a construction site, shall comply with:

• a) BS 4343

• b) BS 1363

• c) BS EN 60309-2

• d) BS 196

11. In an area where there is vehicle movement on a caravan park, the minimum height for overhead cables is:

• a) 3.5 m

• b) 8.0 m

• c) 6.0 m

• d) 7.5 m