Class 5 Boiler Practice Exam

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What is the maximum water capacity in gallons for hot water boilers installed by licensed journeyman plumbers?

150 gallons
180 gallons
200 gallons
250 gallons

The correct answer is: 180 gallons

The maximum water capacity for hot water boilers installed by licensed journeyman plumbers is set at 180 gallons. This limit is often established by regulations to ensure safety and efficiency within residential and commercial plumbing systems. Exceeding this capacity could complicate the installation and operation of the boiler, potentially leading to safety hazards, such as increased pressure in the system. Understanding these requirements is essential for compliance with plumbing codes and maintaining safe operations. A licensed plumber should be well-versed in these regulations, ensuring that the systems they install not only function properly but also adhere to legal standards designed to protect both occupants and property. In the case of the other options, such as 150 gallons, 200 gallons, and 250 gallons, these figures either fall below or exceed the legal limit for installation by journeyman plumbers, thus making them inappropriate thresholds according to the relevant codes and standards governing boiler installations.