Georgia Class F License Flashcards
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Questions and Answers

What is the minimum tread depth on the front tires?

4/32

How much tread depth is needed on the back tires?

2/32

At what amount of DEF fluid should you fill up?

1/8

What should your oil pressure be at when the truck is idling?

<p>5-20 psi</p> Signup and view all the answers

What should your oil pressure be at when the truck is operating?

<p>35-75 psi</p> Signup and view all the answers

How long should it take the truck to build 50-90 psi?

<p>within 3 minutes</p> Signup and view all the answers

How much psi does the governor cut off engage?

<p>120-140 psi</p> Signup and view all the answers

How often should trucks check their cargo?

<p>1st 50 miles, then every 150 miles or every 3 hours</p> Signup and view all the answers

How should your cones be set out on one-way traffic?

<p>10', 100', and 200' toward the oncoming traffic</p> Signup and view all the answers

How far should your cones be apart on obstructed view?

<p>100'-500'</p> Signup and view all the answers

What is perception distance?

<p>the time you see it until your brain recognizes it</p> Signup and view all the answers

What is reaction distance?

<p>the time before you actually hit the brakes</p> Signup and view all the answers

Why do empty trucks take longer to stop than a loaded truck?

<p>Less traction</p> Signup and view all the answers

Examples of road hazards?

<ul> <li>work zones</li> <li>drop off</li> <li>foreign obstacles</li> <li>on/off ramps</li> </ul> Signup and view all the answers

How often should you inspect your tires?

<p>every 2 hours or 100 miles</p> Signup and view all the answers

How many straps should cargo have on it?

<p>at least 2 (no matter how small) and 1 for every 10 ft of cargo</p> Signup and view all the answers

How much play does the slack adjuster need before it needs an adjustment?

<p>1 inch</p> Signup and view all the answers

In a dual air system, how long does it take to build 85-100 psi?

<p>45 sec</p> Signup and view all the answers

How much play can a belt have to be operational?

<p>up to 3/4 inch of play</p> Signup and view all the answers

What belts should you check for snugness?

<ul> <li>Power steering belt</li> <li>alternator belt</li> <li>water pump belt</li> <li>air compressor belt</li> </ul> Signup and view all the answers

What does the emergency kit consist of?

<ul> <li>Spare electrical fuses</li> <li>3 triangular cones</li> <li>3 liquid burning flares</li> <li>A properly mounted and properly charged fire extinguisher</li> </ul> Signup and view all the answers

How much play can a steering wheel have?

<p>No more than 10 degrees on a 20-inch steering wheel (or 2 inches)</p> Signup and view all the answers

How do you test hydraulic brakes?

<p>Pump brake three times then hold for 5 sec. If the brake pedal loosens up or something leaks, then something is wrong.</p> Signup and view all the answers

Brake push rod should not move more than how much when pushed or pulled on by hand?

<p>1 inch</p> Signup and view all the answers

How do you test a parking brake?

<p>Put the truck in drive with the parking brake engaged, ease on the gas pedal, and see if the parking brake holds the truck back.</p> Signup and view all the answers

How many leaf springs have to be missing for the truck to be put out of service?

<p>more than 1/4</p> Signup and view all the answers

What should be some things you check when you approach your vehicle for a pre-trip inspection?

<p>Look for damage, vehicle leaning to one side, fresh fluids (oil, coolant, grease, or fuel), and check around the vehicle for hazards.</p> Signup and view all the answers

What should you do if oil pressure is low, dropping, or fluctuating?

<p>stop immediately</p> Signup and view all the answers

How do you test a service brake?

<p>Go about 5 mph, push brake pedal firmly. If it pulls to one side or has a delay, that can mean trouble.</p> Signup and view all the answers

How far ahead should you be looking?

<p>12-15 sec</p> Signup and view all the answers

When you signal, what should you do?

<ul> <li>signal early way before turn</li> <li>signal continuously</li> <li>cancel signal once turn is complete</li> </ul> Signup and view all the answers

What is the equation for total stopping distance?

<p>perception distance + reaction distance + braking distance</p> Signup and view all the answers

The average driver has a reaction time of what?

<p>3/4-1 sec</p> Signup and view all the answers

At 55 mph, your vehicle will travel a minimum of what?

<p>419 ft</p> Signup and view all the answers

Hydroplaning can happen at speeds as low as?

<p>30 mph</p> Signup and view all the answers

When should you slow to a safe speed when coming up on a curve?

<p>before you enter the curve</p> Signup and view all the answers

What can change depending on if the vehicle is loaded?

<p>the space under the vehicle</p> Signup and view all the answers

What do you check when you check your tires?

<p>tire mounting and air pressure</p> Signup and view all the answers

What is controlled braking?

<p>Braking as hard as you can without locking the wheels, with very little steering wheel movements. If wheels lock, release, and do it again.</p> Signup and view all the answers

What can cause skidding?

<ul> <li>over braking</li> <li>over steering</li> <li>over acceleration</li> <li>driving too fast</li> </ul> Signup and view all the answers

What are the two basic reasons for covering cargo?

<ul> <li>protect people from cargo spillage</li> <li>protect cargo from the weather</li> </ul> Signup and view all the answers

Foundation brakes are used at each wheel; the most common type is what?

<p>S-cam drum brake</p> Signup and view all the answers

At what pressure will the warning signal come on?

<p>55 psi</p> Signup and view all the answers

When will the spring brakes fully come on?

<p>20-45 psi (typically 20-30 psi)</p> Signup and view all the answers

What is the equation for total stopping distance at 45 mph?

<p>perception distance + reaction distance + brake lag distance + braking distance</p> Signup and view all the answers

What is total stopping distance going 45 mph?

<p>346'</p> Signup and view all the answers

Build air pressure until governor cut out, which is?

<p>roughly 120-140 psi</p> Signup and view all the answers

Study Notes

Tire Maintenance

  • Minimum tread depth for front tires is 4/32 inches.
  • Minimum tread depth for back tires is 2/32 inches.
  • Inspect tires every 2 hours or 100 miles for damage and air pressure.

Vehicle Fluids

  • Fill DEF fluid when it reaches 1/8 of a tank.
  • Oil pressure should be between 5-20 psi when idling and 35-75 psi during operation.

Air Pressure and Braking System

  • Truck should build 50-90 psi within 3 minutes.
  • Governor cutout engaged between 120-140 psi.
  • Dual air system should build 85-100 psi in 45 seconds.

Cargo and Load Security

  • Inspect cargo every 50 miles, then every 150 miles or 3 hours.
  • At least 2 straps required for cargo, plus 1 strap for every 10 feet of cargo.

Cones and Traffic Control

  • On one-way traffic, cones should be set 10', 100', and 200' towards oncoming traffic.
  • For obstructed view, space cones 100'-500' apart.

Distance Metrics

  • Perception distance is the time taken to recognize an object.
  • Reaction distance is the time before braking occurs.
  • Total stopping distance combines perception distance, reaction distance, brake lag distance, and braking distance.

Brake Testing

  • Test hydraulic brakes by pumping thrice and holding for 5 seconds; pedal looseness indicates an issue.
  • Brake push rod should move no more than 1 inch when manipulated.
  • Test parking brake by driving with it engaged; if it doesn’t hold, there’s a problem.

Safety Equipment and Quick Checks

  • An emergency kit must contain spare fuses, three triangular cones, three liquid-fueled flares, and a properly charged fire extinguisher.
  • At vehicle approach for pre-trip inspection, look for damage, lean to one side, and fresh fluid leaks.

Driving Considerations

  • The average driver has a reaction time of 3/4-1 second.
  • At 55 mph, a vehicle travels a minimum of 419 feet.
  • Hydroplaning can occur at speeds as low as 30 mph.

Handling Techniques

  • Controlled braking means braking hard without wheel lockup and minimizing steering movements.
  • Factors causing skidding include over-braking, over-steering, over-acceleration, and excessive speed.

Cargo Regulations

  • Cover cargo to protect people from spillage and to shield the load from weather elements.

Brake Types and Signals

  • The most common foundation brake type is the S-cam drum brake.
  • A warning signal for air pressure comes on before reaching 55 psi; spring brakes engage fully between 20-45 psi.

Total Stopping Distance

  • Total stopping distance at 45 mph is 346 feet.
  • Air pressure should be built until reaching the governor cutout of approximately 120-140 psi.

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Description

Test your knowledge about key regulations and specifications for obtaining a Class F license in Georgia. These flashcards cover important topics such as tread depth and oil pressure for trucks. Perfect for anyone preparing for the license exam.

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