Ontario Air Brake Practice · Question
Scenario 5: The first (supply / wet) reservoir is drained:
Daily draining is typical for trucks without an automatic drain valve, especially before cold weather. The correct answer is "At intervals set by the manufactur
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Question: Scenario 5: The first (supply / wet) reservoir is drained:
Answer options:
- Every year ✅ At intervals set by the manufacturer (often daily on systems without automatic drains)
- Only at major service
- Never
Correct answer: At intervals set by the manufacturer (often daily on systems without automatic drains)
Explanation: Daily draining is typical for trucks without an automatic drain valve, especially before cold weather. The correct answer is "At intervals set by the manufacturer (often daily on systems without automatic drains)". This capacity-fill scenario 5 reinforces the same competency for the airbrake bank and follows the certified explanation standard.
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