Questions and Answers
What is counter-steering?
Turning the steering wheel back in the other direction after steering to avoid a traffic emergency.
The distance that you should look ahead of your vehicle while driving is about __ mile at highway speeds.
1/4
What is the purpose of retarders?
Help slow the vehicle while driving and reduce brake wear.
Why should you signal continuously while turning?
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Why is a broken exhaust system dangerous?
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What should be fixed before the vehicle is driven according to pre-trip inspection?
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Which statement is true about double-clutching and shifting?
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How often must CDL medical certificates be renewed?
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What gear will you probably have to use to take a long, steep downhill grade?
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What should you do if your vehicle’s drive wheels start to spin when starting from a stop?
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Why will your vehicle's speed naturally increase on downgrades?
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What is stab braking?
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When must you sign the written vehicle inspection report?
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Where must placards be placed on a vehicle?
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For a first offense of driving a commercial vehicle under the influence of alcohol or drugs, for how long will you lose your CDL?
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Which of these is NOT part of the engine compartment pre-trip inspection?
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If you must drive through water, which step can help keep your brakes working?
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When are you required to stop at all railroad grade crossings?
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Which figure shows how to make a wide turn from a two-lane street?
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What are containerization loads generally used for?
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What is controlled braking?
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When turning left from one two-lane street onto another, when should you begin turning?
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What should the coolant temperature gauge indicate after starting the engine?
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What is true about unstable loads?
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What is true about a vehicle's overhead clearance?
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Which of these is NOT a good rule to follow when caring for an injured person at an accident scene?
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What is especially true about your tires in hot weather?
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When passing another vehicle, pedestrian, or bicyclist, what should you assume?
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To determine a person's blood alcohol concentration, what must you know?
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If you need to leave the road in a traffic emergency, what should you do?
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Study Notes
Counter-Steering
- Counter-steering involves turning the steering wheel back in the opposite direction to avoid a traffic emergency.
Look Ahead Distance
- Drivers should look ahead approximately 1/4 mile while driving at highway speeds.
Retarders Function
- Retarders assist in slowing down the vehicle and minimizing brake wear.
Signaling During Turns
- Continuous signaling is necessary while turning to keep both hands available for safe steering.
Exhaust System Risks
- A broken exhaust system can allow toxic fumes to enter the vehicle's cab or sleeper berth, creating a safety hazard.
Pre-trip Inspection Standards
- Steering wheel play should not exceed 10 degrees (2 inches on a 20-inch wheel) for safe operation.
Double-Clutching and Shifting
- The tachometer can indicate the appropriate time to shift gears during double-clutching.
CDL Medical Certification
- CDL medical certificates must be renewed every two years.
Gear for Downhill Grades
- A lower gear is recommended for descending long, steep hills compared to the gear used for ascent.
Starting from a Stop
- If the drive wheels start to spin when applying power, release the accelerator immediately.
Speed Increase on Downgrades
- A vehicle's speed naturally increases on downhill slopes due to gravitational force.
Stab Braking Technique
- Stab braking involves engaging the brakes fully and then releasing them after the wheels lock.
Written Vehicle Inspection Report
- A written vehicle inspection report must be signed if the previous driver noted defects.
Placards Placement
- Placards must be displayed on all four sides of a transport vehicle.
Consequences for DUI
- A first offense of driving a commercial vehicle under the influence results in a minimum one-year CDL suspension.
Pre-trip Inspection Exclusions
- Valve clearance is not included in the engine compartment pre-trip inspection.
Handling Water Hazards
- To maintain braking effectiveness when driving through water, gently apply the brakes while traversing the area.
Railroad Grade Crossing
- Stopping at railroad grade crossings is mandatory if the cargo requires it under regulations.
Making Wide Turns
- To effectively turn from a two-lane street with a long vehicle, begin the turn halfway through the intersection.
Containerization Loads
- Containerization refers to loads typically transported partially by rail or ship.
Controlled Braking
- Controlled braking maintains a straight trajectory while slowing down the vehicle.
Turning from Wide Vehicles
- When turning left onto another street, initiate the turn halfway through the intersection to accommodate wider turns.
Coolant Temperature Gauge
- After starting the vehicle, the coolant temperature gauge should gradually rise to indicate normal operation.
Cargo and Stability
- Unstable cargo types, such as livestock or hanging meat, require cautious driving through curves.
Vehicle Overhead Clearance
- The height of a vehicle can change based on cargo weight, impacting overhead clearance.
Accident Scene Care
- A poor practice at an accident scene is to keep injured persons cool.
Tire Care in Hot Weather
- It’s crucial to check tire mounting and air pressure before driving, particularly in hot weather.
Assumptions When Passing
- Always presume that pedestrians, vehicles, or cyclists may encroach into your lane while passing.
Blood Alcohol Concentration Factors
- To accurately gauge blood alcohol concentration, one must know the individual’s weight.
Emergency Road Departure
- In a traffic emergency requiring you to leave the road, refrain from braking until necessary.
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