NV A General Engineering Practice Questions - Nevada A General Engineering Contractor Examination Exam

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Under AWWA C600 practice commonly specified on Nevada water mains, a new ductile-iron pressure line is hydrostatically tested at about 1.5 times working pressure, and not less than which pressure and duration?

100 psi for 30 minutes 125 psi for 1 hour 150 psi for 2 hours 250 psi for 4 hours

Correct Answer:

150 psi for 2 hours

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