Manitoba Airbrake Practice Exam

How can you identify a malfunctioning compressor during an inspection?

1. By its color

2. By unusual noises, leaks, or inability to maintain air pressure

3. By checking its weight

4. By testing the air quality

The correct answer is: By unusual noises, leaks, or inability to maintain air pressure

Identifying a malfunctioning compressor during an inspection can be effectively done by observing signs such as unusual noises, leaks, or an inability to maintain air pressure. These indicators are critical because they directly relate to the operational performance of the compressor. Unusual noises may indicate internal damage or wear, such as bearing failure or issues with the valves. Leaks can show that there are integrity problems in the compressor’s seals or connections, which can lead to a loss of air pressure and reduced efficiency. Additionally, the compressor's inability to maintain air pressure suggests that it is not functioning effectively, possibly due to mechanical failure or insufficient lubrication. These factors are essential during an inspection, as they provide clear evidence of the compressor's performance status, allowing for timely maintenance or repair before more significant issues develop. Recognizing these symptoms can prevent further complications in the braking system, ensuring safety and reliability in operation.