Question 1
Under AS/NZS 3500.1, what minimum residual water pressure must be available at the most hydraulically disadvantaged fixture during peak demand?
Correct Answer:
150 kPa
Question 2
AS/NZS 3500.1 generally limits the maximum static water pressure at any fixture outlet to which value to protect fittings?
Correct Answer:
500 kPa
Question 3
What does the nominal size designation DN15 most commonly refer to in domestic water service pipework?
Correct Answer:
A pipe with a 15 mm nominal bore (approx. 1/2 inch)
Question 4
In a domestic cold water service, which pipe size is typically used for the metered rising main supplying a single dwelling?
Correct Answer:
DN20
Question 5
AS/NZS 3500.1 sizes water pipes using which approach to account for the fact that not all fixtures discharge at once?
Correct Answer:
Fixture unit loading and probable simultaneous demand
Question 1
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About this Exam

Prepare with the NSW Plumbing Licence Practice Questions - NSW Plumbing & Drainage Tradesperson Certificate (Plumbing Trade Theory) Exam practice quiz. This question bank includes 100 questions covering water, pipe, valve, sanitary, and pressure. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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NSW Plumbing Licence Practice Questions - NSW Plumbing & Drainage Tradesperson Certificate (Plumbing Trade Theory) Exam

This practice set contains 100 questions from the matching question bank and focuses on water, pipe, valve, sanitary, and pressure. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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