Red Seal Plumbing Practice Exam

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Copper pipe has a ____% greater carrying capacity than steel or iron pipe.

  1. 20

  2. 30

  3. 40

  4. 50

The correct answer is: 20

Copper pipe has a 20% greater carrying capacity than steel or iron pipe, meaning that it can transport more fluid or gas than pipes made of these materials. This is due to copper's superior strength and durability, allowing it to withstand higher pressures without deforming or breaking. Options B, C, and D do not accurately reflect the significant advantage of copper pipe when compared to iron or steel pipe, with only a 10%, 20%, and 30% difference respectively. Therefore, A is the best answer.

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