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Class B TradeCore Tradesmedium29% of exam part

A washing machine standpipe is roughed in without a proper trap arrangement. What condition should be fixed?

Correct Answer

C) Trap connection.

The fixture drainage arrangement needs a proper trap so sewer gas is blocked and waste can drain correctly.

Answer Options
A
Pipe support.
B
Protect ventilation paths.
C
Trap connection.
D
Reach access.

Why This Is the Correct Answer

The fixture drainage arrangement needs a proper trap so sewer gas is blocked and waste can drain correctly.

Why the Other Options Are Wrong

Option A: Pipe support.

Pipe support. addresses a neighboring field issue, but not the condition or method control required for plumbing trap arrangement.

Option B: Protect ventilation paths.

Protect ventilation paths. addresses a neighboring field issue, but not the condition or method control required for plumbing trap arrangement.

Option D: Reach access.

Reach access. addresses a neighboring field issue, but not the condition or method control required for plumbing trap arrangement.

Memory Technique

Fixture is the clue; drainage is the method check for Reviewing Laundry.

Reference Hint

Study anchor (closed-book): memorize Plumbing trap arrangement from California Plumbing Code, California Code of Regulations Title 24. / Title 24 California Plumbing Code trap and fixture drain concepts; know the rule or calculation trigger without relying on exam-room lookup.

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