SSC JE Civil Engineering 29-Oct-2020 Shift 1 Paper

Question : 130 of 200

Marks: +1, -0

Which of the following is NOT true about PVC pipes?

They have no problem of incrustation
They possess low coefficient of expansion as compared to cast-iron or galvanized-iron pipes
They have good insulation properties hence the temperature of water passing through such pipes is not effected by outside temperature
They possess high Hazen Williams Constant and it results into adaptation of smaller size of PVC pipes compared to other conventional materials

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