Trunking in Industrial and Commercial Installations

In what type of premises is steel trunking suitable for installation?

• Residential homes

• Workshops or industrial premises

• Outdoor parks

• Underwater facilities

Where is the widespread use of cable trunking most notable?

• Residential homes

• Industrial and commercial premises

• Outdoor parks

• Sports facilities

What is a common application for dado trunking?

• Outdoor lighting

• Office electrical networks

• Garden irrigation systems

• Kitchen appliances

What is underfloor trunking used for in large buildings under construction?

• To provide a network of cable ducts or trunking in the concrete floor or under a suspended floor

• To enhance the aesthetic appeal of the building

• To increase the structural integrity of the building

• To provide heating solutions

What is a key advantage of PVC trunking?

• Heavy weight

• Difficult to cut

• Prefabricated and lightweight

• Expensive

In what situations is PVC trunking suitable?

• Only domestic

• Only commercial

• Domestic, commercial, or industrial

• Only industrial

What is one advantage of using mini trunking and surface mounted switch and socket boxes?

• They are more expensive

• They disturb the underlying decoration

• Circuits can be easily extended

• They require frequent rewiring

What term is used colloquially in the trade for domestic rewires using mini trunking?

• Home rewires

• Quick rewires

• Council rewires

• Easy rewires

What is the purpose of using mini trunking in electrical installations?

• To increase the cost

• To make rewiring more complex

• To extend circuits without disturbing decoration

• To reduce the lifespan of circuits

What is the formula for calculating the space factor?

• Sum of overall CSA of cables / Internal available CSA of trunking x 100%

• Internal available CSA of trunking / Sum of overall CSA of cables x 100%

• Sum of overall CSA of cables x Internal available CSA of trunking

• Internal available CSA of trunking - Sum of overall CSA of cables