Questions and Answers
What is the most important reason for doing a vehicle inspection?
To ensure the vehicle is safe to drive and roadworthy.
What things should you check during a trip?
Tires, brakes, lights, connections to trailer, trailer coupling devices, cargo securement devices.
Name some key steering system parts.
Steering wheel, steering shaft, gear box, hydraulic fluid reservoir, pitman arm, drag link, steering knuckle, spindle, power steering cylinder, steering arm, tie rod.
Name some suspension system defects.
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Name three kinds of emergency equipment you must have.
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What is the minimum tread depth for front tires? For other tires?
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Name some things you should check on the front of your vehicle during the walk around inspection.
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What should wheel bearing seals be checked for?
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How many red reflective triangles should you carry?
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How do you test hydraulic brakes for leaks?
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Why put the starter switch key in your pocket during the pre-trip inspection?
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Why should you back toward the driver's side?
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If stopped on a hill, how can you start moving without rolling back?
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When backing, why is it important to use a helper?
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What's the most important hand signal that you and the helper should agree on?
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What are the two special conditions where you should downshift?
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When should you downshift automatic transmissions?
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Retarders keep you from skidding when the road is slippery.
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What are the two 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 are two main things to look for ahead?
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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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What three things add up to total stopping distance?
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If you go twice as fast, will your stopping distance increase by two or four times?
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Empty trucks have the best braking.
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What is hydroplaning?
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What is 'black ice'?
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How do you find out how many seconds of following distance space you have?
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If you are driving a 30-foot vehicle at 55 mph, how many seconds of following distance should you allow?
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You should decrease your following distance if somebody is following you too closely.
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If you swing wide to the left before turning right, another driver may try to pass you on the right.
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What is a hazard?
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Why make emergency plans when you see a hazard?
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What are some tips to follow so you won't become a distracted driver?
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How do you use in-vehicle communications equipment cautiously?
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How do you recognize a distracted driver?
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What is the difference between aggressive driving and road rage?
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What should you do when confronted with an aggressive driver?
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What are some things you can do to reduce your stress before and while you drive?
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You should use low beams whenever you can.
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What should you do before you drive if you are drowsy?
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What effects can wet brakes cause? How can you avoid these problems?
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You should let air out of hot tires so the pressure goes back to normal.
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You can safely remove the radiator cap as long as the engine isn't overheated.
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What factors determine your selection of a 'safe' speed when going down a long, steep downgrade?
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Why should you be in the proper gear before starting down a hill?
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Describe the proper braking technique when going down a long, steep downgrade.
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What type of vehicles can get stuck on a railroad-highway crossing?
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Stopping is not always the safest thing to do in an emergency.
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What are some advantages of going right instead of left around an obstacle?
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What is an 'escape ramp'?
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If a tire blows out, you should put the brakes on hard to stop quickly.
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How do you know if your vehicle has antilock brakes?
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What is the proper braking technique when driving a vehicle with antilock brakes?
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How do antilock brakes help you?
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What are some things to do at an accident scene to prevent another accident?
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Name two causes of tire fires.
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What kinds of fires is a B:C extinguisher not good for?
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When using your extinguisher, should you get as close as possible to the fire?
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Name some causes of vehicle fires.
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Common medicines for colds can make you sleepy.
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Coffee and a little fresh air will help a drinker sober up.
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What is a hazardous materials placard?
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Why are placards used?
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Study Notes
Vehicle Inspection
- Vehicle inspection ensures safety and roadworthiness before driving.
- Key checks during a trip include tires, brakes, lights, trailer connections, and cargo securement devices.
Steering and Suspension
- Important steering components: steering wheel, gear box, hydraulic reservoir, and tie rod.
- Common suspension defects: broken leaf springs, leaking shock absorbers, and damaged axle positioning parts.
Emergency Equipment
- Required emergency items: fire extinguisher, three red triangles, flare, and spare fuses.
Tire and Wheel Checks
- Minimum tread depth: 4/32" for front tires, 2/32" for all others.
- Wheel bearing seals should be inspected for leaks.
Safety Procedures
- Carry three red reflective triangles for emergencies.
- During pre-trip inspections, keep the starter switch key in your pocket to prevent vehicle movement.
- Back towards the driver's side for better visibility and safety.
Driving Techniques
- To prevent rollback on hills, engage the parking brake or clutch before releasing the brake.
- Use a helper when backing to enhance visibility and safety.
Communication
- Agree on essential hand signals with a helper, particularly for stopping.
- Important signals in safe driving include warning others of hazards using lights and signals.
Stopping Distance
- Total stopping distance consists of perception distance, reaction distance, and braking distance.
- Stopping distance increases by four times if speed doubles.
Road Conditions
- Hydroplaning occurs when tires lose contact with the road due to water.
- "Black ice" refers to a thin, nearly invisible layer of ice over pavement.
Following Distance
- Allow at least 30 feet of following distance for a vehicle at 55 mph.
- Adjust following distance according to traffic conditions, not closer if being tailgated.
Aggressive Driving Awareness
- Recognize the difference between aggressive driving and road rage; stay calm when confronted by aggressive drivers.
Braking and Gear Management
- Downshift before descending a hill or slowing for curves; important for controlling speed.
- Maintain appropriate speed when going downhill, selecting the proper gear ahead of descent.
Emergency and Obstacle Navigation
- In some cases, stopping in an emergency might not be the safest option.
- Using escape ramps can provide a safe option in emergencies.
Handling Tire Blowouts and Vehicle Fires
- In the event of a tire blowout, avoid slamming the brakes; maintain control of the vehicle.
- Causes of vehicle fires include mechanical failures and improper maintenance.
Hazardous Materials
- Hazardous materials placards indicate the presence of dangerous substances on a vehicle.
- Placards are crucial for warning others about potential hazards during transport.
Health and Safety
- Certain medications can increase drowsiness; avoid driving when under their influence.
- Driving may be impaired after consuming alcohol or drugs; coffee and fresh air do not reliably sober up a person.
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Description
Prepare for your CDL permit test with these flashcards focused on vehicle inspection and maintenance. Each card highlights essential knowledge and key components necessary for safe driving. Perfect for aspiring commercial drivers looking to enhance their understanding.
