Electrical installation 203 2

Which flexible cable would you use for connecting a boiler or electric heater?

• 90 degree heat resistant thermoplastic PVC

• SWA

• 185 degree glass fibre insulated braided cable

• Mineral Insulated cable

Which type of cable would be the best for mechanical protection outdoors

• Mineral Insulated

• FP 200

• HOFR flex

• SWA

What colour is a 30 A 3036 fuse?

• Blue

• White

• Red

• Green

What is the main use of an RCD in a standard domestic installation?

• Additional protection

• Automatic disconnection of supply

• Class 2 fittings

• Supplementary bonding

Where would you most likely use metal trunking?

• For data cables in a commercial setting

• Industrial installation with singles wiring

• Embedded in a wall behind plasterboard

• Instead of skirting board in a house

What will affect PVC conduit factor apart from length?

• Number of bends in conduit

• Type of conduit

• The colour of the conduit

• the amount of saddles used

When do you need a ferrule on FP200 cable?

• Always

• If used in wet areas

• If it has a silicone inner sheath

• Only on red FP200

What does LSF stand for as in cable type?

• Lots of small filings

• light sheath fire

• Low smoke and fume

• lots of stranded fibres

What is the disconnection time for a circuit with a 6A MCB?

• 0.4 seconds

• 7 seconds

• 5 seconds

• 6 seconds

What type of support is the best for lots of small cables?

• Basket tray

• Conduit

• Trunking

• Clipped direct