Class 1 Commercial Driver Practice · Question
How can a driver proactively prevent a jackknife situation caused by locking the drive wheels?
To prevent drive wheel lock-up leading to a jackknife, drivers should apply steady, moderate brake pressure to avoid skidding and downshift to use engine brakin
Start free practice for Class 1 Commercial Driver Practice
399 questions · no signup required · 40 free questions per day
Question: How can a driver proactively prevent a jackknife situation caused by locking the drive wheels?
Answer options:
- By applying more power to the drive wheels.
- By ensuring the trailer brakes are set harder than the tractor brakes. ✅ By applying steady, moderate brake pressure and downshifting before slippery sections.
- By only using the hand-lever (spike) brake.
Correct answer: By applying steady, moderate brake pressure and downshifting before slippery sections.
Explanation: To prevent drive wheel lock-up leading to a jackknife, drivers should apply steady, moderate brake pressure to avoid skidding and downshift to use engine braking, especially before entering slippery road sections. This maintains traction and control.
Start free practice for Class 1 Commercial Driver Practice
399 questions · no signup required · 40 free questions per day
More about Class 1 Commercial Driver Practice
Related Questions
- Approaching a sign that reads 'Runaway Lane / Emergency Escape Ramp Ahead', what is the immediate significance
- A rectangular sign with a truck symbol and an upward-pointing arrow, followed by 'Steep Grade', combined with
- What is the correct interpretation of a 'Oversize Load' sign displayed on a pilot vehicle in front of a flatbe
- A commercial vehicle displaying a red flag at the rear of its load indicates:
- You see a rectangular yellow sign with 'LONG VEHICLE' written in black letters. What information does this con
- A sign on the side of a transport truck reads ‘WIDE LOAD’. Which of the following is most probable about the v
More for Class 1 Commercial Driver Practice candidates
Question explanations
- Approaching a sign that reads 'Runaway Lane / Emergency Escape Ramp Ahead', what is the immediate significance
- A rectangular sign with a truck symbol and an upward-pointing arrow, followed by 'Steep Grade', combined with
- What is the correct interpretation of a 'Oversize Load' sign displayed on a pilot vehicle in front of a flatbe
- A commercial vehicle displaying a red flag at the rear of its load indicates:
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Class 1 Commercial Driver Practice Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.