Questions and Answers
Common medicines for colds can make you sleepy.
Coffee and a little fresh air will help a drinker sober up.
False
What is a hazardous materials placard?
Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo.
Why are placards used?
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What type of fire extinguisher is designed to work on electrical fires and burning liquids?
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What type of fire extinguisher is designed to work on burning wood, paper, and cloth?
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What four things related to cargo are drivers responsible for?
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How often must you stop while on the road to check your cargo?
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How is Gross Combination Weight Rating different from Gross Combination Weight?
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Name two situations where legal maximum weights may not be safe.
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What can happen if you don't have enough weight on the front axle?
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What is the minimum number of tie-downs for any flatbed load?
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What is the minimum number of tie-downs for a 20-foot load?
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Name the two basic reasons for covering cargo on an open bed.
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What must you check before transporting a sealed load?
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Name some things to check in the interior of a bus during a vehicle inspection.
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What are some hazardous materials you can transport by bus?
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What are some hazardous materials you can't transport by bus?
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What is a standee line?
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Does it matter where you make a disruptive passenger get off the bus?
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What are the slack adjusters?
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What is the most important reason for doing a vehicle inspection?
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What things should you check during a trip?
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Name some key steering system parts.
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Name some suspension system defects.
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What three kinds of emergency equipment must you have?
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What is the minimum tread depth for front tires?
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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 vehicle 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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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 you place reflectors 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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What should you do before you drive if you are drowsy?
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What are some things to do at an accident scene to prevent another accident?
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What types of vehicles can get stuck on a railroad-highway crossing?
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How long does it take for a typical tractor-trailer unit to clear a double track?
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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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What are some causes of vehicle 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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Study Notes
Vehicle Inspection and Safety
- Safety inspection of vehicles is required to prevent breakdowns and crashes.
- Federal and state laws mandate vehicle inspections, assessing safety before road use.
- Essential components to check include gauges, tires, brakes, lights, electrical connections, and cargo securement.
Steering and Suspension Systems
- Key steering parts include tie rods, steering wheels, hydraulic fluid reservoirs, and power steering cylinders.
- Suspension defects to look for are cracked spring hangers and missing leaves in leaf springs; severe defects lead to “out of service” status.
Emergency Equipment and Brakes
- Required emergency equipment includes fire extinguishers, spare electrical fuses, and warning devices like reflective triangles or flares.
- Minimum tread depth for front tires is 4/32 inches; for other tires, it's 2/32 inches.
Backing and Maneuvering
- Back toward the driver's side for better visibility; avoid right-side backing due to limited sightlines.
- Use a helper for backing to mitigate blind spots and establish hand signals for communicating movements.
Driving Techniques and Situational Awareness
- Always look 12 to 15 seconds ahead while driving; remain aware of vehicle traffic and brake lights.
- Total stopping distance consists of perception, reaction, and braking distances; speeds increase stopping distance quadratically (four times when speed doubles).
Handling Hazards and Emergencies
- Recognize hazards as any possible danger on the road; prepare emergency plans when encountered.
- In emergencies, sometimes steering away from obstacles can be safer than stopping.
Drowsiness and Distraction Prevention
- Combat drowsiness by getting sufficient sleep (8 to 9 hours) before driving.
- Avoid distractions like mobile devices and pre-adjust all vehicle settings before driving.
Handling Skids and Braking Systems
- Understand that vehicles with ABS prevent wheel lock-up; brake safely, applying necessary force without jerking.
- Brake gently if tires lose traction to maintain control, especially on slippery surfaces.
Accident Scene Procedures
- At accident scenes, protect the area, notify authorities, and provide care for injured parties to prevent further incidents.
- Tire fires often result from under-inflation or dual tires touching; be proactive in tire maintenance.
Load and Cargo Management
- Drivers must inspect cargo regularly, ensuring it is balanced, secured, and does not obstruct the driver's visibility or access to emergency equipment.
- It's essential to stop periodically (every 50 miles or after breaks) to verify cargo safety.
Fire Extinguisher Usage
- A B:C fire extinguisher is designed for electrical and liquid fires, while an A:B:C extinguisher works for ordinary combustibles too.
- Position yourself upwind when using an extinguisher to enhance safety and efficiency.
Hazardous Materials Awareness
- Hazardous materials are indicated on vehicles by placards that list the class of the cargo; multiple placards are mandatory for visibility.
Weight Ratings and Regulations
- GCWR is the manufacturer-specified weight rating that includes both the vehicle's and trailer's weight, crucial for safe towing.### Weight on Axles
- Insufficient weight on the steering axle leads to unsafe steering capabilities.
- Low weight on driving axles causes poor traction and may result in easy spinning of drive wheels.
Tie-Down Requirements
- The minimum number of tie-downs for any flatbed load is 2, based on 1 tie-down for every 10 feet.
- For a 20-foot load, 2 tie-downs are also the minimum required.
Cargo Coverage Reasons
- Cargo must be covered to prevent spillage endangering people nearby.
- Coverage also protects the cargo from adverse weather conditions.
Sealed Load Checks
- Inspection of sealed loads is not possible, but checking gross weight and axle weight limits is essential before transport.
Bus Interior Inspection
- Key items to inspect in a bus's interior include handholds and railings, floor covering, signaling devices like restroom emergency buzzers, emergency exit handles, and the safety of seats.
- All seats must be securely fastened to the bus for rider safety.
Hazardous Materials Transport by Bus
- Transportable hazardous materials via bus include small-arms ammunition labeled ORM-D, emergency hospital supplies, and drugs.
Hazardous Materials Prohibited on Bus
- Prohibited materials for transport include poison gas, explosives, radioactive materials, car batteries, and gasoline.
Standee Line
- Buses that allow standing must have a two-inch line, known as the standee line, showing where riders cannot stand.
- No rider is allowed to stand forward of the rear of the driver's seat.
Disruptive Passengers
- Discharging a disruptive passenger must be done with safety in mind for both the rider and others.
- It is critical not to let such passengers off in an unsafe location.
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Description
Prepare for your Indiana BMV CDL Class A & B exams with this comprehensive practice test. Sections 2, 3, and 5 cover essential topics, including vehicle inspections and brake components. Test your knowledge with these flashcards designed to enhance your learning experience.