Plumbing NC I Practice Questions - TESDA Plumbing NC I Competency Assessment Exam - Plumbing NC I Practice Questions - TESDA Plumbing NC I Competency Assessment Exam

Question 1

According to TESDA Plumbing NC I, what must be done to PVC pipe ends before solvent-cement fit-up?

Clean the pipe ends according to standard procedures before fit-up Heat the pipe ends with a blow torch until they soften Apply primer only after the solvent cement has fully cured Sand the interior only; the exterior does not need preparation

Correct Answer:

Clean the pipe ends according to standard procedures before fit-up

Question 2

When making PVC pipe joints, when should trial fitting be performed?

Before final fit-up and before applying solvent cement or other jointing materials Only after the solvent cement has cured for 24 hours After the joint is permanently connected to test for leaks Trial fitting is optional if measurements are within tolerance

Correct Answer:

Before final fit-up and before applying solvent cement or other jointing materials

Question 3

Which jointing material is specified in the TR for ensuring leak-free threaded pipe connections?

Teflon tape or other related jointing materials applied to the threads Electrical tape wrapped around the outside of the fitting Gasoline applied to the threads as a lubricant only Chalk stone packed into the joint hub

Correct Answer:

Teflon tape or other related jointing materials applied to the threads

Question 4

For caulked cast iron (CI) pipe joints, to what minimum depth must joints be firmly packed and fitted?

Not less than 25.4 mm Not less than 12.7 mm Exactly 50.8 mm regardless of pipe size Until the joint is flush with the outside of the pipe only

Correct Answer:

Not less than 25.4 mm

Question 5

For hubless cast iron caulked joints, how far below the rim of the hubless fitting may the caulk extend?

Not more than 3.2 mm below the rim of the hubless fitting At least 25.4 mm below the rim Flush with or above the rim of the fitting Exactly 12.7 mm below the rim in all cases

Correct Answer:

Not more than 3.2 mm below the rim of the hubless fitting

Exam overview

About this Exam

Prepare with the Plumbing NC I Practice Questions - TESDA Plumbing NC I Competency Assessment Exam practice quiz. This question bank includes 100 questions covering joints, pipe, pipes, plumbing, and installation. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Plumbing NC I Practice Questions - TESDA Plumbing NC I Competency Assessment Exam

This practice set contains 100 questions from the matching question bank and focuses on joints, pipe, pipes, plumbing, and installation. 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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About this Exam

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Plumbing NC I Practice Questions - TESDA Plumbing NC I Competency Assessment Exam

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