CDL General Knowledge Practice Test Part 2

1. When a tire blowout occurs on a commercial motor vehicle, what is the correct immediate response?

2. When placing reflective emergency triangles after stopping on a two-lane road, what is the correct placement distance for the three triangles?

3. A driver is descending a steep mountain grade in a loaded Class A combination vehicle when the brakes begin to fade and lose effectiveness. Which sequence of actions should the driver take FIRST?

4. A driver experiences a front-wheel skid while braking on a slippery road surface. What is the correct recovery technique?

5. A CDL driver is operating a tractor-semitrailer on a curved highway ramp during rain when the trailer begins to swing outward, creating a jackknife situation. Which immediate action should the driver take?

6. A driver notices smoke coming from the engine compartment of a loaded straight truck while traveling on a highway. Which action sequence should the driver follow?

7. A driver is operating a Class B bus on a divided highway when the right rear tire blows out. The bus begins drifting toward the right shoulder. The driver applies brakes immediately, and the bus swerves sharply left across two lanes before stabilizing. What error did the driver make, and what should have been done differently?

8. A driver traveling at 55 mph in a 60-foot combination vehicle experiences a rear-wheel skid on a wet curve. The driver steers in the opposite direction of the skid and applies firm braking. The vehicle jackknifes and crosses into oncoming traffic. Which two errors caused this outcome?

9. A loaded tanker truck is approaching a steep downgrade when the driver notices the service brakes are fading. An escape ramp is visible 1 mile ahead. The driver accelerates slightly to reach the ramp faster, then applies maximum braking at the ramp entrance. The truck fails to stop in the ramp and crashes into the barrier. What errors led to this outcome?

10. A CDL driver stops on a two-lane road at night due to a mechanical breakdown. The driver places one reflective triangle 50 feet behind the vehicle, another at 150 feet, and keeps the third triangle inside the cab for later use. A passing vehicle nearly strikes the stopped truck. What placement errors did the driver make?