Types of Electrical Cables Quiz

Which materials are typically used for conductors in modern cables?

• Plastic or rubber

• Copper or aluminium

• Steel or iron

• Gold or silver

What needs to be done periodically if the thermoplastic insulation degrades?

• Increase voltage

• Decrease current

• Upgrade the system

• Change the color

What is a disadvantage of the 6491X single unsheathed PVC cable?

• High cost

• Cannot be used outside an enclosure

• Difficult to install

• Low heat resistance

What is the downside of using Cross-linked polyethylene (XLPE) thermosetting cable?

• Low heat resistance

• High cost

• Lack of flexibility

• Limited life

Why are containment systems like ladders and trays needed for SWA cables?

• To enhance flexibility

• To support the weight

• To reduce cost

• To increase conductivity

What type of cable is suitable for electricity distribution from switchgear to distribution boards?

• Single-core cable

• Steel-wired armoured cable

• Coaxial cable

• Fiber optic cable

What is the role of the olive in SWA termination fittings?

• To insulate the cable

• To compress the wire armour

• To secure the locknuts

• To color the cable

Image of a PVC SWA cable showing its structure.

• Image of a PVC SWA cable with incorrect labeling.

• Image of a PVC SWA cable with missing parts.

• Image of a PVC SWA cable with incorrect color coding.

• Image of a PVC SWA cable showing its structure.

What does MICC stand for in the context of building services engineering?

• Mineral Insulated Copper Cable

• Metal Insulated Copper Cable

• Magnetic Insulated Copper Cable

• Mineral Insulated Carbon Cable

What is a notable property of MICC cables in terms of robustness?

• Very robust

• Fragile

• Moderately robust

• Not robust