PVC Wiring

Low voltage cables can be easily attached to the surface by?

• Cable clips

• Cable ties

• Cleats

• Saddles

Twin or multicore cable may have an overall sheath of thermoplastic PVC to?

• Provide mechanical protection

• Provide additional insulation

• Give the cable a neat appearance

• Keep conductors warm

From April 2004 the new three phase colours are?

• Red, yellow, blue

• Brown, black, grey

• Brown, blue, grey

• Brown, yellow, red

From April 2004 the new single phase colours are?

• Brown and blue

• Brown and black

• Red and blue

• Red and black

Copper is used in preference to aluminium as a conductor as it is?

• Better conductor

• Cheaper

• Provided in longer lengths

• Lighter

Which of the following is the most widely used as a cable insulator?

• Thermoplastic PVC

• Paper

• Rubber

• Magnesium oxide

Which of the following is the best conductor?

• Carbon

• Aluminium

• Copper

• Iron

Which one of the following insulators emits a toxic gas when burnt ?

• Magnesium oxide

• Thermoplastic PVC

• Paper

• Rubber

Copper is used in preference to aluminium as a conductor as it is?

• Better conductor

• Cheaper

• Provided in longer lengths

• Lighter

Which wiring system is commonly used in commercial locations?

• Conduit

• PVC wiring

• Plastic pipes

• Flex cable