Minnesota Boiler License Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the Minnesota Boiler License Exam. Deepen your knowledge with expertly designed flashcards and multiple choice questions, each complete with helpful hints and detailed explanations. Get prepared for your licensing success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

On a low-pressure boiler, how many square feet or above must have two safety valves?

50
500
1000
250

The correct answer is: 500

For low-pressure boilers, regulations typically stipulate that when a boiler exceeds a certain square footage, it must be equipped with two safety valves to ensure proper safety measures are in place. The requirement for two safety valves is essential for maintaining safety as it provides redundancy; in case one valve fails, the second can still function to relieve excess pressure. This safety measure is critical in preventing hazardous situations that could arise from excessive pressure in the boiler. In the specific context of this question, the threshold for installing two safety valves is set at 500 square feet. This means that any low-pressure boiler with a heating surface area of 500 square feet or more must have at least two safety valves to ensure effective pressure management and safeguard against potential catastrophic failures due to pressure buildup.