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Practice quizzes / BC Class 2 Bus Practice Questions - British Columbia Class 2 Commercial Bus Driver's License Knowledge Test Exam / Question 55410
Practice question

At what air pressure must the low pressure warning device (buzzer and light) activate on an air brake-equipped bus?

  1. Above 100 psi
  2. Below 60 psi (414 kPa)
  3. Below 30 psi (207 kPa)
  4. Exactly 90 psi

Answer: B — Below 60 psi (414 kPa)

The correct answer is shown above. Try the full quiz for additional practice.

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