WorksheetsTypes of Electrical Cables Quiz
Total questions: 15
Worksheet time: 8mins
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
What type of cable has replaced MICC cable in fire alarm systems?
FP200
FP300
FP100
FP400
What are Data or Belden cables designed to carry?
High voltage power
Low voltage data signals
Audio signals
Video signals
What is a key characteristic of fibre-optic cables regarding data transfer?
Very high speeds
Low speeds
Moderate speeds
Variable speeds
Which of the following materials is NOT used for steel conduits?
Wood
Black steel
Galvanised steel
Stainless steel
What is the purpose of using a basket in cable containment systems?
To organize and support cables
To increase cable speed
To reduce cable cost
To change cable appearance
