Practice Quiz

Commercial Driver's License

Category - Difficult Driving

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Commercial drivers may find that they have to drive in very hot temperatures. When performing a pre-trip inspection for hot temperature driving, drivers should pay special attention to which of the following?
  1. Correct tire pressure
  2. Coolant levels
  3. Engine oil
  4. All of the above
Explanation
Answer: D - When driving in hot temperatures drivers should pay special attention to their tire pressure. Pressure increases with temperature but drivers should not let air of the tires as this may cause the tire to be too low when cool. Drivers must also check their coolant levels and oil levels. Low levels of oil or coolant can cause the engine to overheat or even seize up.
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