143 S2 Cable Tray

What is the main purpose of electrical conduit?

• A) To prevent electrical hazards
• B) To route and enclose electrical cables
• C) To reduce electrical consumption
• D) To insulate electrical wiring

Which material is lightweight and non-corrosive to certain environments?

• A) Low carbon steel
• B) Aluminium
• C) Stainless steel
• D) Fibre reinforced plastic (FRP)

Which of the following materials is most cost-effective for cable trays?

• A) Stainless steel
• B) Low carbon steel
• C) FRP
• D) Aluminium

What is the common size factor considered when selecting a cable tray?

• A) Tray thickness
• B) Tray color
• C) Material density
• D) Electrical conductivity

Which of the following is a common method for finishing cable trays?

• A) Brushed finish
• B) Hot galvanizing
• C) Painting
• D) Acid etching

Which material is NOT commonly used for making conduits?

• A) Plastic
• B) Metal
• C) Glass
• D) Non-metal

What is the primary use of cable trays?

• A) To route electrical cables
• B) To prevent corrosion
• C) To insulate wiring
• D) To reduce electrical load

Cable trays are commonly used in which type of systems?

• A) Lighting circuits
• B) Power circuits
• C) Fire detection systems
• D) All of the above

Which of the following is an advantage of using a cable tray over a conduit system?

• A) Higher cost
• B) Easier to install and inspect
• C) Requires more labor
• D) Less flexibility

What type of cable tray allows easier future changes to wiring systems?

• A) Solid bottom
• B) Ladder type
• C) Trough
• D) Wire mesh