Plumber Red Seal · Question
The total change in direction of a fixture trap arm is limited by the NPC to a maximum of:
The fixture trap arm, which connects the trap weir to the vent, can have a total change in direction of up to 90 degrees. This allows for offsets using fittings
Start free practice for Plumber Red Seal
177 questions · no signup required · 40 free questions per day
Question: The total change in direction of a fixture trap arm is limited by the NPC to a maximum of:
Answer options:
- 45 degrees ✅ 90 degrees
- 135 degrees
- 180 degrees
Correct answer: 90 degrees
Explanation: The fixture trap arm, which connects the trap weir to the vent, can have a total change in direction of up to 90 degrees. This allows for offsets using fittings like 45-degree elbows while ensuring the pipe remains properly graded and does not become a running trap.
Start free practice for Plumber Red Seal
177 questions · no signup required · 40 free questions per day
More about Plumber Red Seal
Related Questions
- Before starting a new plumbing installation in a residential basement, what is the primary reason why a plumbe
- A plumber is installing a new kitchen sink in an existing residential dwelling. The sink drain is connected to
- A plumber is installing drainage for a dishwasher in a residential kitchen. The dishwasher P-trap is located 1
- A plumber is asked to install a backflow prevention assembly on a lawn irrigation system connected to the pota
- A plumber is considering the velocity of water in a 50 mm (2") copper pipe supplying a commercial building. Ex
- A plumber is designing the domestic hot water recirculation system for a multi-story residential building. Wha
More for Plumber Red Seal candidates
Practice tests
Question explanations
- Before starting a new plumbing installation in a residential basement, what is the primary reason why a plumbe
- A plumber is installing a new kitchen sink in an existing residential dwelling. The sink drain is connected to
- A plumber is installing drainage for a dishwasher in a residential kitchen. The dishwasher P-trap is located 1
- A plumber is asked to install a backflow prevention assembly on a lawn irrigation system connected to the pota
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Plumber Red Seal Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.