Questions and Answers
What is the most important reason you should inspect your vehicle before hitting the road?
Safety
How much tread depth is required for the front tires?
4/32
How much tread depth is required on all other tires than the front?
2/32
What are 3 pieces of emergency equipment that should be equipped inboard the vehicle?
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You should inspect your cargo within the 1st ______ miles of a trip and every ______ miles or every ______ hours of a trip.
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From what side should you back up and why?
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What is one thing you should do when using a helper to back up the vehicle?
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What is the most important hand signal to workout when working with a helper to back up a vehicle?
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What are the two ways to know when you shift?
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What should you watch when you use engine speed to shift up?
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When should you shift when approaching a downgrade or curve?
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What do retarders help do?
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How many seconds does a good driver look ahead?
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When on a highway, how far away do good drivers look?
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What should you look for when you look ahead?
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On a one-way road or a divided highway, where should your reflective triangles be placed in regards to the vehicle?
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On a 2-way road or undivided highway, where do your reflective triangles need to be placed?
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What three things make up the total stopping distance?
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When making a left turn, and there are 2 lanes, what lane should you take?
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According to the manual, what is considered a hazard?
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___ second(s) is required for each ____ feet of vehicle length at speeds under 40 mph.
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Above 40 mph, use the same formula, then add ____ second for the additional speed.
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What are 4 things that could make up a hazardous road?
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What should you always have when you come across a hazardous road or something hazardous in the road?
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When you are in a driving emergency, what should you avoid until the speed of the vehicle is below 20 mph?
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When you have to brake quickly, how should you brake?
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What are the two safest ways to brake when you have to do so quickly?
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What should you do when you have a tire that failed?
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Study Notes
Vehicle Safety and Inspection
- Inspecting the vehicle before driving is crucial for ensuring safety on the road.
- Front tires must have a tread depth of at least 4/32 inches to maintain grip.
- All other tires require a minimum tread depth of 2/32 inches.
Emergency Equipment
- Essential emergency equipment includes a fire extinguisher, three reflective triangles, and spare fuses.
Cargo Inspection
- Inspect cargo within the first 50 miles of a trip and then every 150 miles or every three hours.
Backing Up Safely
- It is recommended to back up from the driver's side for better visibility.
- Use hand signals to communicate with a helper when backing up, emphasizing the importance of the "stop" signal.
Shifting Gears
- Key indicators for shifting gears include monitoring engine speed (RPM) and road speed (MPH).
- A tachometer should be observed for engine speed when shifting upward.
- Shift gears before approaching downgrades or curves to maintain control.
Retarders and Braking
- Retarders assist in reducing brake usage, enhancing safety.
- Good drivers scan the road 12 to 15 seconds ahead, or approximately 1/4 mile on highways.
Distance Awareness
- Stay vigilant for traffic and poor road conditions when looking ahead.
- Reflective triangles must be placed correctly: 10 feet, 100 feet, and 200 feet behind on one-way roads, and within 10 feet in front or behind on two-way roads.
Stopping Distance
- Total stopping distance comprises perception distance, reaction distance, and braking distance.
- For vehicles under 40 mph, allow 1 second for each 10 feet of length; for speeds above 40 mph, add 1 additional second.
Hazard Awareness
- Hazards include any condition that compromises safe driving, such as work zones, drop-offs, foreign objects, and ramps.
- Always have a plan when approaching hazardous road conditions.
Emergency Braking
- In an emergency, avoid braking until the vehicle speed is below 20 mph to maintain control.
- Brake quickly yet carefully to keep the vehicle moving in a straight line.
- Controlled braking and stab braking are the safest techniques for emergency stopping.
Tire Failure Response
- In the event of a tire failure, hold the steering wheel firmly, refrain from braking immediately, and inspect the tires once stopped.
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Description
Prepare for the Pennsylvania Commercial Driver's License written test with this quiz focused on essential knowledge such as vehicle inspection and safety standards. Each flashcard addresses critical questions regarding tire tread depth and required safety equipment. Test your understanding and ensure you are prepared for the exam.