Arizona State Admin Exam Practice Test

What is the maximum operating pressure allowed for a hot water boiler installed under the Arizona CR-39 scope?

15 PSIG 30 PSIG 50 PSIG 100 PSIG

Correct Answer:

30 PSIG

Explanation:

According to the Arizona CR-39 scope, wet systems including hot water boilers are limited to 30 PSIG operating pressure and 220°F. Steam systems are limited to 15 PSIG.

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