Manitoba Airbrake Practice Exam

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Why would a brake chamber need to be 'caged'?

To adjust the brakes
To move the vehicle in an emergency
For regular maintenance
To replace the brake pads

The correct answer is: To move the vehicle in an emergency

A brake chamber might need to be "caged" in order to move the vehicle in an emergency situation. Option A is incorrect because adjusting the brakes does not typically require the chamber to be caged. Option C is also incorrect because regular maintenance does not necessarily involve caging the brake chamber. Option D is incorrect because replacing the brake pads would not require the brake chamber to be caged either. In an emergency, caging the brake chamber could disengage the brakes, allowing the vehicle to be moved.