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Questions and Answers
What indicates that a brake with an exposed pushrod is out of adjustment?
Which condition requires immediate attention when inspecting air compressor components?
What is the maximum allowable air loss rate per minute for a single vehicle?
When should the air brake system not be operated due to a major defect?
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What air pressure range is required when measuring the applied pushrod stroke on brakes?
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Who is authorized to perform repair and re-adjustment of air brakes?
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Hydraulic brake systems primarily utilize which fluid for operation?
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What does an air compressor governor typically cut-in at?
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What happens when the brake chamber pushrod stroke exceeds the adjustment limit?
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How often must air brake systems comply with regulations under the Ontario Highway Traffic Act?
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Why must air tanks be drained regularly?
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What is the primary function of the brake pedal in an air brake system?
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What does brake fade primarily result from?
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What is the consequence of cross-connecting trailer couplers or 'gladhands'?
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Air compressors used in braking systems can be powered using which of the following methods?
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When conducting a vehicle inspection for the air brake system, where should the vehicle be parked?
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What is a common misconception about the operation of the brake pedal in air brake systems?
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What should be inspected to avoid unexpected vehicle movement during air brake system checks?
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Which of the following indicates a malfunction in an anti-lock braking system (ABS)?
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What should drivers look for when inspecting the foundation brake components?
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What must be done if a vehicle does not comply with vehicle regulations?
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Which component is not part of the air brake system's storage?
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What happens when a spring brake chamber is disabled using a caging bolt?
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During an inspection, what should a driver focus on regarding brake drums and rotors?
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Study Notes
Air Brakes
- Air tank drainage is important to remove moisture and oil buildup.
- Air tanks help store compressed air in an air brake system.
- Air brake systems are powered by compressed air.
- The air brake system's pedal applies the service brakes.
- Spring brake control valves are typically push/pull types located near the driver.
- Trailer service and spring brakes may not function correctly when couplers are cross-connected.
- Braking requires more work when the vehicle carries heavier loads.
- Exceeding the adjustment limit for brake chamber pushrod stroke reduces braking ability.
- Ontario's Highway Traffic Act and regulations must be followed at all times related to air brake systems.
- Inspecting air brake systems should be done on a level surface in a safe location.
- When inspecting foundation brakes, drivers should look for signs of wear or damage.
- Brake fade occurs due to high brake temperatures.
- Anti-lock braking systems (ABS) have warning indicators for malfunction detection.
- Both the vehicle operator and the driver may be charged if the vehicle's brakes don't meet regulations.
- Inspecting air brake systems requires caution to avoid potential hazards.
- Drivers should inspect brake drums and rotors for cracks or damage.
- Air compressors should be inspected for secure mounting and proper governor settings.
- Air compressor governor should cut-in below the cut-out pressure setting.
- The maximum allowable air loss rate for a single vehicle is 3 psi per minute.
- A vehicle with a major air brake defect shouldn’t be driven on any roads or highways.
- Brake adjustment for exposed pushrods can be checked by measuring the applied pushrod stroke.
- The air pressure for adjusting brake pushrods should be between 90 and 100 psi.
- An exposed pushrod is out of adjustment when the pushrod stroke exceeds the adjustment limit.
- Air brake repair and re-adjustment should only be performed by certified technicians.
- Hydraulic brake systems use brake fluid.
- Air compressors are mounted directly onto the engine or by using belts and pulleys:
Other Components
- Pulleys are used in mechanical systems to change the direction of force or to multiply force.
- Brackets and fasteners are used to secure and support components in a system.
- Sprockets are toothed wheels used with chains or belts for power transmission.
- Belts and chains are used in mechanical systems for power transmission.
- Alcohol evaporators are used to help prevent moisture in the air brake system from freezing.
- Wedge brakes consist of brake drums and brake shoes.
- Anti-lock braking systems are designed to prevent wheel lock-up during braking.
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Description
This quiz covers essential knowledge about air brake systems, focusing on their components, inspection procedures, and safety regulations. Participants will learn about moisture management, the importance of proper adjustments, and the implications of exceeding limits for brake effectiveness. It’s crucial for drivers to understand these systems to ensure road safety.