Mobile Pump Operator Practice Exam 2025 – Complete Study Resource

Question: 1 / 400

What is the maximum pressure that should be pumped to a standpipe if the MPO is unfamiliar with the standpipe maintenance?

100 psi

150 psi

200 psi

The maximum pressure that should be pumped to a standpipe when the Mobile Pump Operator (MPO) lacks familiarity with the maintenance of that specific standpipe is 200 psi. This standard is generally implemented to ensure safety and prevent potential failure of the system. Standpipe systems can vary in their design and capability, and without knowledge of the specific system's maintenance, a conservative pressure limit is advisable.

Pumping above 200 psi could increase the risk of causing leaks or ruptures in the piping or fittings, particularly in older or poorly maintained systems. This limit is based on common guidelines that prioritize the safety of the entire firefighting operation, both for the personnel involved and the integrity of the standpipe system itself. In contrast, higher pressure levels may compromise the system's reliability, especially if its condition is unknown. Understanding these constraints is crucial for effective and safe firefighting practices.

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250 psi

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