Manitoba Airbrake Practice Exam

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What is a critical effect of a malfunctioning brake valve?

  1. Improved braking efficiency

  2. Increased risk of brake failure

  3. Lower fuel consumption

  4. Enhanced vehicle speed

The correct answer is: Increased risk of brake failure

A malfunctioning brake valve can lead to an increased risk of brake failure, which is a critical concern for vehicle safety. The brake valve is responsible for controlling the flow of air in the braking system. If it fails, it may not supply adequate pressure to the brake chambers, resulting in a loss of braking power or uneven braking. This could cause the vehicle to take longer to stop or, in some cases, become unable to stop altogether, significantly increasing the risk of an accident. This scenario underscores the importance of regular maintenance and inspection of the brake system to ensure that all components, including the brake valve, are functioning correctly.

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