143 S1 Conduits

What is the primary purpose of using conduit in electrical wiring?

• a) To protect wires from mechanical damage
• b) To increase the length of the wire
• c) To decrease electrical resistance
• d) To reduce the cost of installation

Which of the following is NOT a type of conduit?

• a) Metal conduit
• b) Plastic conduit
• c) Rubber conduit
• d) Flexible conduit

What is the typical size of round conduit used in electrical installations?

• a) 10mm
• b) 20mm, 25mm, and 32mm
• c) 50mm, 60mm, and 70mm
• d) 100mm, 120mm, and 150mm

What is the purpose of galvanized steel in conduit?

• a) To reduce weight
• b) To prevent rust
• c) To make the conduit flexible
• d) To reduce cost

Which type of conduit is suitable for use in hazardous areas?

• a) PVC conduit
• b) Stainless steel conduit
• c) Galvanized steel conduit
• d) Aluminum conduit

What type of conduit is commonly used in office environments?

• a) Heavy-duty conduit
• b) Light-duty conduit
• c) Medium-duty conduit
• d) Flexible conduit

Which of the following is a benefit of using conduit in wiring systems?

• a) Increases electrical resistance
• b) Protects cables from impact and moisture
• c) Reduces the need for grounding
• d) Prevents electrical faults

What is the main material used for manufacturing non-metal conduit?

• a) PVC (Plastic)
• b) Rubber
• c) Copper
• d) Aluminum

Which type of conduit is explosion-proof?

• a) PVC conduit
• b) Stainless steel conduit
• c) Flexible conduit
• d) Aluminum conduit

In which environment is heavy-duty gauge conduit primarily used?

• a) Residential environments
• b) Industrial environments
• c) Office environments
• d) Educational environments