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Questions and Answers
What does the trailer air supply control do?
By pushing it in, you supply the trailer with air.
What is the most important reason for doing a vehicle inspection?
To ensure the safety of yourself and other drivers.
What things should you check during a trip?
Gauges, mirrors, check vehicle cargo or load when instructed.
Name some suspension system defects.
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What three kinds of emergency equipment must you have on your vehicle?
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What should wheel bearing seals be checked for?
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Why should you back toward the driver's side?
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Why is it important to use a helper when backing up?
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What are the 2 special conditions where you should downshift?
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What are the 2 ways to know when to shift?
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How far ahead does the manual say you should look?
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What's your most important way to see the sides and rear of your vehicle?
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What does communicating mean in safe driving?
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Where should your reflectors be placed when stopped on a divided highway?
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If you go twice as fast, will your stopping distance increase by 2 or 4 times as much?
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If you are driving a 30 ft. vehicle at 55 mph, how many seconds of following distance should you allow?
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Study Notes
Vehicle Inspection and Safety
- Conducting vehicle inspections ensures your safety and that of other drivers.
- During a trip, monitor gauges, adjust mirrors, and check cargo or load when instructed.
Trailer and Air Supply
- The trailer air supply control provides air to the trailer when pushed in.
Emergency Equipment
- Essential emergency equipment includes spare electrical fuses, three red reflective triangles, and properly rated fire extinguishers.
Suspension System Defects
- Report any defective suspension systems such as broken or cracked leaf springs, broken hangers, or leaking hydraulic fluids.
Backing Procedures
- Backing up should ideally be done toward the driver’s side for better visibility of mirrors.
- Always use a helper when backing, as blind spots can obstruct your view.
Shifting and Speed
- Downshift before going down a hill or entering a curve for better control.
- Key indicators for shifting include engine speed and road speed.
Safe Driving Practices
- Maintain a lookout 12 to 15 seconds ahead; this is roughly 1/4 mile or one city block.
- Use side mirrors as your primary method for seeing the sides and rear of the vehicle.
- Communicate intentions to other drivers using blinkers or signal lights.
Reflectors and Stopping Distance
- When stopped on a divided highway, place reflectors at distances of 10, 100, and 200 feet behind the vehicle.
- Doubling your speed increases stopping distance by four times.
- Maintain a following distance of 4.5 seconds when driving a 30 ft vehicle at 55 mph.
Studying That Suits You
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Description
Prepare for your CDL Class A exam with these flashcards. Each card covers important concepts such as trailer air supply controls and vehicle inspection criteria. Use these cards to reinforce your knowledge and ensure you're ready for the road.
