Ontario Class D Practice Test · Question
What is the most significant hazard when driving a straight truck on a road covered with black ice?
Black ice is very dangerous because it's difficult to see and significantly reduces tire traction, making it extremely challenging to control the vehicle's dire
Start free practice for Ontario Class D Practice Test
50 questions · no signup required · 40 free questions per day
Question: What is the most significant hazard when driving a straight truck on a road covered with black ice?
Answer options:
- Reduced visibility
- Increased tire wear ✅ Extremely reduced traction making steering and braking ineffective
- Engine stalling due to cold temperatures
Correct answer: Extremely reduced traction making steering and braking ineffective
Explanation: Black ice is very dangerous because it's difficult to see and significantly reduces tire traction, making it extremely challenging to control the vehicle's direction and speed.
Start free practice for Ontario Class D Practice Test
50 questions · no signup required · 40 free questions per day
More about Ontario Class D Practice Test
Related Questions
- When performing a pre-trip inspection, what is the minimum air pressure required in an air brake system before
- When driving a straight truck, how should you pass a pedestrian walking on the shoulder of the road without a
- Scenario 1: Tare weight refers to:
- Scenario 2: Gross combination weight (GCW) is:
- Scenario 3: A retarder on a heavy truck is used to:
- Scenario 4: An e-log (ELD) records:
More for Ontario Class D Practice Test candidates
Practice tests
Question explanations
- When performing a pre-trip inspection, what is the minimum air pressure required in an air brake system before
- When driving a straight truck, how should you pass a pedestrian walking on the shoulder of the road without a
- Scenario 1: Tare weight refers to:
- Scenario 2: Gross combination weight (GCW) is:
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Ontario Class D Practice Test Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.