Practice Test GeeksRed Seal Electrician 309A Practice Test
← All 309A Flashcard Decks

Wiring Methods and Materials Flashcards

6 cards from real 309A practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Wiring Methods and Materials flashcards as text

  1. What is the maximum distance between supports for 1/2-inch rigid metal conduit?

    Answer: 3.0 m

    CEC Table 12-22 specifies a maximum support spacing of 3.0 m for rigid metal conduit of 1/2-inch to 1-inch trade size, as the rigidity of the conduit allows wider spacing than EMT.

  2. What conductor type is typically used for service entrance cables in Canadian residential installations?

    Answer: RW90 XLPE

    RW90 XLPE (cross-linked polyethylene) conductors are commonly used for service entrance wiring because they are rated for wet locations, have excellent dielectric properties, and meet CEC requirements.

  3. According to the CEC, what is the maximum number of quarter bends (90°) allowed in a conduit run between pull points?

    Answer: 4

    The CEC limits conduit runs to four quarter bends (totalling 360°) between pull points. This prevents excessive friction that would make conductor pulling difficult or damage insulation.

  4. What is the primary purpose of using a seal-off fitting at a conduit entrance to an enclosure?

    Answer: To prevent the passage of gases, vapours, or moisture

    Seal-off fittings are filled with sealing compound to prevent gases, vapours, flames, or moisture from passing through the conduit system, particularly important at boundaries of hazardous areas.

  5. What cable type must be used for wiring fire alarm circuits in Canada?

    Answer: FAS-rated cable (fire alarm system cable)

    CEC Section 32 and fire alarm standards require FAS-rated (Fire Alarm System) cable for fire alarm circuits. This cable is specifically designed to maintain circuit integrity during fire conditions.

  6. What is the purpose of the green-coloured conductor or green stripe in a cable assembly?

    Answer: It identifies the bonding/grounding conductor

    The CEC designates green or green with a yellow stripe for the bonding (grounding) conductor. This conductor connects equipment to the grounding system for fault protection.