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| Q. |
Which of the following is not true about plastic pipes? |
| A. | plastic pipes are cheaper than the metal pipes |
| B. | plastic pipes are light in weight |
| C. | plastic pipes can be installed with ordinary tools |
| D. | plastic pipes are corrosive |
| Answer» D. plastic pipes are corrosive | |
| Explanation: plastic pipes are light in weight. ordinary tools are used to install plastic pipes. plastic pipes are non-corrosive and are cheaper than metal pipes. | |
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