Question 1
What is the correct method for preparing the surface of a uPVC pipe and fitting socket before applying solvent cement under Sri Lankan standards?
Correct Answer:
Clean with a dry cloth and lightly roughen with fine emery paper, then apply solvent cleaner.
Question 2
How should solvent cement be applied to a uPVC pipe joint for a water supply system?
Correct Answer:
A thin, even coat inside the fitting socket and a thicker, even coat on the pipe exterior.
Question 3
What is the minimum recommended setting/curing time for a 50mm uPVC water supply pipe joint before subjecting it to high-pressure testing at room temperature?
Correct Answer:
24 hours
Question 4
What is the correct temperature setting for a socket fusion welding machine when jointing PPR (Polypropylene Random Copolymer) pipes?
Correct Answer:
260°C
Question 5
According to typical manufacturer guidelines for PPR pipe jointing, what is the heating time required on the welding machine for a 25mm diameter PPR pipe?
Correct Answer:
7 seconds
Question 1
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About this Exam

Prepare with the Sri Lanka NVQ L3 Plumber Practice Questions - Sri Lanka NVQ Level 3 Plumber Written Examination Exam practice quiz. This question bank includes 100 questions covering water, pipe, valve, supply, and standard. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Sri Lanka NVQ L3 Plumber Practice Questions - Sri Lanka NVQ Level 3 Plumber Written Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on water, pipe, valve, supply, and standard. 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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