Manitoba Airbrake Practice Exam

The governor's cut-out pressure refers to the maximum air pressure that the governor allows the compressor to reach before it shuts off. This ensures that the air compressor does not exceed its maximum pressure capacity and prevents any potential damage.

Option B, C, and D have higher pressure limits which may cause damage to the compressor and its components. Thus, they are incorrect choices.

Conversely, option A's pressure limit of 145 psi is within the safe operating range of the compressor and therefore the correct answer for the governor's cut-out pressure.