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

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What is the correct method for preparing the surface of a uPVC pipe and fitting socket before applying solvent cement under Sri Lankan standards?

Clean with a dry cloth and lightly roughen with fine emery paper, then apply solvent cleaner. Wash with soap and water, then apply solvent cement while the pipe is wet. Apply solvent cement directly over any dust or grease to ensure maximum bonding. Heat the pipe end using a blowtorch until it softens before applying cement.

Correct Answer:

Clean with a dry cloth and lightly roughen with fine emery paper, then apply solvent cleaner.

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