CSWIP Plastics Welder Approval Practice Questions - CSWIP Plastics Welder Approval (TWI BS EN 13067) Exam

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What is the primary material property advantage of PE 100-RC compared to standard PE 100 for underground piping applications?

Significantly higher resistance to slow crack growth (SCG) under point loading Lower thermal expansion coefficient requiring fewer expansion loops Higher melting temperature allowing continuous service at 150°C Complete immunity to chemical degradation from concentrated sulphuric acid

Correct Answer:

Significantly higher resistance to slow crack growth (SCG) under point loading

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