Ontario Class B Practice Test · Question
When driving a Class 2 bus down a long, steep mountain grade, what is the most effective technique to control your speed and prevent brake fade?
On a long, steep descent, using a lower gear allows the engine to help control the vehicle's speed through engine braking, reducing the reliance on the service
Start free practice for Ontario Class B Practice Test
50 questions · no signup required · 40 free questions per day
Question: When driving a Class 2 bus down a long, steep mountain grade, what is the most effective technique to control your speed and prevent brake fade?
Answer options: ✅ Shift to a lower gear and use engine braking.
- Apply continuous light pressure to the service brakes.
- Apply the parking brake intermittently to slow down.
- Pump the service brakes rapidly and repeatedly.
Correct answer: Shift to a lower gear and use engine braking.
Explanation: On a long, steep descent, using a lower gear allows the engine to help control the vehicle's speed through engine braking, reducing the reliance on the service brakes and preventing them from overheating and fading. Continuous light pressure or pumping can still lead to brake fade, and using the parking brake is unsafe.
Start free practice for Ontario Class B Practice Test
50 questions · no signup required · 40 free questions per day
More about Ontario Class B Practice Test
Related Questions
- In a bus equipped with air brakes, the parking brake is typically:
- The 'low air pressure warning' on a bus must activate before pressure drops below:
- The low-air-pressure warning device must activate before pressure drops below:
- Smith System's first key 'Aim High in Steering' means:
- Spring (parking) brakes on an air-brake bus apply automatically when pressure falls to approximately:
- A Class 2 licence in Canada allows you to drive:
More for Ontario Class B Practice Test candidates
Practice tests
Question explanations
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Ontario Class B Practice Test Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.