#1
1. Which of the following is a primary reason for conducting a pre-trip inspection on a commercial vehicle?
To ensure safety
ExplanationPrevents accidents and ensures compliance with regulations.
#2
6. When should a driver use the parking brake on a commercial vehicle?
Whenever the vehicle is parked
ExplanationPrevents the vehicle from rolling away while parked.
#3
11. What is the purpose of the term 'bobtail' when referring to a commercial vehicle?
A truck without a trailer
ExplanationDescribes a semi-truck without a trailer attached.
#4
16. What is the purpose of the term 'hazardous materials' when referring to a commercial vehicle?
Materials that pose a risk to health or safety
ExplanationDescribes substances requiring special handling due to their potential danger.
#5
21. What is the purpose of the term 'deceleration lane' when referring to a commercial vehicle?
A lane for slowing down before exiting a highway
ExplanationProvides a safe area for reducing speed before exiting the highway.
#6
2. What is the purpose of the air brake system on a commercial vehicle?
To control the speed
ExplanationRegulates the vehicle's speed through air pressure.
#7
3. What is the maximum number of consecutive hours a commercial driver can legally drive without taking a break?
10 hours
ExplanationEnsures driver alertness and prevents fatigue-related accidents.
#8
7. What does the term 'GVWR' stand for in relation to a commercial vehicle?
Gross Vehicle Weight Rating
ExplanationSpecifies the maximum weight a vehicle can safely carry.
#9
8. Why is it important for a commercial driver to be aware of bridge heights?
To prevent cargo damage
ExplanationAvoids collisions and damage to the vehicle and cargo.
#10
12. Why is it important for a commercial driver to adjust their driving in adverse weather conditions?
To ensure safety
ExplanationReduces the risk of accidents and maintains control of the vehicle.
#11
13. In a pre-trip inspection, what should a driver check when inspecting the steering system?
Play in the steering wheel
ExplanationEnsures responsive and safe steering.
#12
4. In a pre-trip inspection, what should be checked when inspecting the engine compartment?
Coolant levels
ExplanationPrevents engine overheating and ensures proper functioning.
#13
5. What is the purpose of the term 'blind spot' when referring to commercial vehicles?
An area not visible in mirrors
ExplanationMinimizes the risk of accidents by checking areas not visible in mirrors.
#14
9. What is the purpose of the emergency equipment required on a commercial vehicle?
To comply with regulations
ExplanationEnsures preparedness for emergencies and legal compliance.
#15
10. When driving a commercial vehicle, what should a driver do if they begin to feel drowsy or fatigued?
Pull over and take a break
ExplanationPrevents accidents due to decreased alertness.
#16
14. What is the purpose of the term 'downshifting' in the context of commercial vehicle operation?
Changing to a lower gear
ExplanationDecreases vehicle speed and enhances control on descents.
#17
15. How does a commercial driver effectively use their mirrors to reduce blind spots?
Regularly check them during driving
ExplanationMaintains awareness of surrounding vehicles and obstacles.