Practice Test – 100 Questions

Take a full length practice exam of 100 randomly generated questions. Missed questions are reviewed at the end of the test.

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Distribution Question

When a 150-pound chlorine cylinder fitting has a slight leak around the gasket material, a gauze like material soaked in _______ should be used below the fittings to confirm the leak.

A
chlorine dioxide
B
ammonia water
C
oil
D
sodium thiosulfate

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What is the minimum flushing velocity required when cleaning water mains?

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