Questions and Answers
When you are in a 60-foot vehicle, how much space should you maintain in front of you at highway speeds?
Seven seconds
What is the first thing to do if your vehicle catches fire while driving?
Pull off the road and park in an open area
What is the best way to put out a fire?
Stand upwind and spray the base of the fire
What are some causes of vehicle fires? (Select all that apply)
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Why must safe drivers maintain space around their vehicles? (Select all that apply)
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If you experience hydroplaning while driving, what should you do?
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When making a right-hand turn, you should always:
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What are common causes of a front wheel skid? (Select all that apply)
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Why is driving at night more dangerous? (Select all that apply)
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How often should you check your cargo? (Select all that apply)
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What is the purpose of an engine retarder?
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When should tires be replaced? (Select all that apply)
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In the event of a tire failure, what should you do?
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If your vehicle is going down a long hill and your brakes begin to fail, what should you do?
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What is the definition of a commercial motor vehicle? (Select all that apply)
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When driving at highway speeds, how far ahead should you look?
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When driving in heavy traffic, what speed should you travel?
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In the event of an accident, what should you do? (Select all that apply)
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When accelerating, you should speed up smoothly, gradually and avoid jerking.
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Why should the exhaust system be checked?
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The weight of the cargo changes a truck's height.
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When is the road likely to be more slippery?
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When making a left-hand turn, what should you do?
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Where should you place warning devices if you must stop on the shoulder of the road? (Select all that apply)
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What are signs of a tire blowout? (Select all that apply)
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Antifreeze is only used in colder temperatures.
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A few beers are the same as a few shots of whiskey or glasses of wine.
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To correct a drive wheel acceleration skid, what should you do?
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When going down a hill, what should you check before starting down?
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What is the proper way to hold your hands on the steering wheel?
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Study Notes
Safe Driving Practices
- Maintain a seven-second following distance in a 60-foot vehicle at highway speeds.
- If your vehicle catches fire, pull off the road to park in an open area.
- The best technique to extinguish a fire is to stand upwind and spray the base of the fire.
Causes and Prevention of Fires
- Common causes of vehicle fires include spilled fuel, short circuits, and smoking while driving.
- Safe drivers should maintain space around their vehicles to prevent collisions due to sudden stops, close-following vehicles, or road obstacles.
Handling Hazardous Conditions
- Hydroplaning can occur on wet surfaces; to regain control, release the accelerator and engage the clutch.
- Keep the rear of the vehicle close to the curb when making a right turn.
Skids and Driving Challenges
- Front wheel skids are often caused by excessive speed, worn treads, or improperly loaded cargo.
- Night driving poses increased risks due to driver fatigue, glare from headlights, and higher instances of drunk driving.
Cargo and Vehicle Maintenance
- Check cargo within 25 miles of starting a trip, after three hours of driving, or following a rest break.
- An engine retarder assists in slowing down a vehicle without using the brakes.
Tire Maintenance and Failure Response
- Replace tires when there are signs of tread separation, broken valve stems, or tread depth below 4/32 of an inch.
- In the event of tire failure, avoid braking suddenly and maintain a firm grip on the steering wheel.
Emergency Preparedness
- If brakes fail while descending a hill, seek an escape ramp or alternative route.
- A commercial motor vehicle is defined as one over 26,001 lbs, transporting hazardous materials, or carrying 16 or more passengers.
Driving Awareness
- Look 12-15 seconds ahead at highway speeds, equivalent to about a quarter of a mile.
- Align your speed with the flow of traffic in heavy conditions to maintain safety.
Accident Protocols
- In an accident, protect the scene, inform authorities, render first aid to stop bleeding, and keep victims warm.
- Smooth acceleration is essential; avoid sudden jerks when speeding up.
Vehicle Systems and Safety
- Check the exhaust system for leaks to prevent inhalation of toxic fumes in the vehicle.
- The cargo weight affects a truck's height, impacting clearance and handling.
Road Conditions and Alerts
- Roads are most slippery 30 minutes after light rain begins.
- Wait until reaching the center of the intersection before making a left turn.
Warning Devices and Tire Issues
- Place warning devices within ten feet of vehicle corners, approximately 100 feet behind, and in front of the vehicle when stopped on the road.
- Signs of a tire blowout include loud bangs, vibrations, and thumping noises.
General Safety Facts
- Antifreeze is necessary in colder temperatures; it prevents the engine from freezing.
- Alcohol consumption equivalency: a few beers is comparable to a few shots of whiskey or glasses of wine.
- To control a drive wheel acceleration skid, stop accelerating and engage the clutch.
Gear and Control While Descending
- Ensure you're in the correct gear before descending a hill to maintain control.
- For steering, hold the wheel with one hand on each opposite side for better control.
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Description
Test your knowledge on essential CDL concepts with this flashcard quiz. From safe driving distances to handling fires, these questions cover crucial information every commercial driver should know. Perfect for studying the material needed for the CDL exam.
