BC Air Brake Practice · Question
During a governor cut-out test, what is generally the maximum acceptable cut-out pressure for an air brake system?
Most Canadian air brake systems are designed for the governor to cut out between 830 kPa (120 psi) and 1030 kPa (150 psi). A cut-out pressure exceeding 1030 kPa
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Question: During a governor cut-out test, what is generally the maximum acceptable cut-out pressure for an air brake system?
Answer options:
- 850 kPa (125 psi)
- 930 kPa (135 psi) ✅ 1030 kPa (150 psi)
- 1100 kPa (160 psi)
Correct answer: 1030 kPa (150 psi)
Explanation: Most Canadian air brake systems are designed for the governor to cut out between 830 kPa (120 psi) and 1030 kPa (150 psi). A cut-out pressure exceeding 1030 kPa may indicate a malfunction.
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