CDL General Knowledge (Secs. 1, 2, 3,
12, 13) Latest Update Graded A+
What should you do if you experience a tire blowout while driving?
Keep a firm grip on the steering wheel, avoid slamming the brakes, and gradually reduce
speed while pulling over safely.
Why is it important to inspect ...
CDL General Knowledge (Secs. 1, 2, 3,
12, 13) Latest Update Graded A+
What should you do if you experience a tire blowout while driving?
✔✔ Keep a firm grip on the steering wheel, avoid slamming the brakes, and gradually reduce
speed while pulling over safely.
Why is it important to inspect cargo after starting a trip?
✔✔ Inspecting cargo after starting ensures it remains secure and that nothing has shifted or
become loose during the initial part of the trip.
What is the purpose of using reflective triangles during a breakdown?
✔✔ Reflective triangles increase visibility to other drivers, helping to prevent accidents and
ensuring the safety of the vehicle and its occupants.
Why is it important to control your speed when driving downhill in a commercial vehicle?
✔✔ Controlling speed prevents brake overheating and loss of control, especially when carrying a
heavy load.
1
,How can a truck driver avoid hydroplaning in wet conditions?
✔✔ To avoid hydroplaning, reduce speed, ensure tires are properly inflated, and avoid sudden
turns or stops on wet roads.
What should you do if your vehicle starts to skid on ice?
✔✔ Ease off the accelerator, avoid using the brakes, and gently steer in the direction of the skid
until control is regained.
What is the proper technique for handling a curve in a commercial vehicle?
✔✔ Slow down before entering the curve, and avoid braking while in the curve to maintain
control and stability.
How does the “four-second rule” help maintain a safe following distance?
✔✔ The “four-second rule” ensures enough space between you and the vehicle ahead, giving
you time to react to sudden stops or hazards.
What is the importance of checking blind spots before changing lanes?
✔✔ Checking blind spots ensures no vehicles or obstacles are in the path, preventing collisions
during lane changes.
2
, Why should you avoid overloading a truck’s axles?
✔✔ Overloading axles can lead to reduced handling, increased braking distances, and damage to
the vehicle’s suspension system.
What is the best way to manage driving fatigue during long trips?
✔✔ To manage fatigue, take regular breaks, stay hydrated, and get adequate sleep before starting
the trip.
Why should you avoid using the engine brake in slippery conditions?
✔✔ Using the engine brake in slippery conditions can cause the wheels to lock up, leading to a
loss of control.
What is the primary reason to conduct a pre-trip inspection?
✔✔ A pre-trip inspection ensures that the vehicle is safe to operate by identifying and addressing
any mechanical issues before starting the trip.
How can you reduce the risk of a rollover in a commercial vehicle?
3
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