Georgia Class F License Flashcards

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?

5-20 psi Signup and view all the answers

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

35-75 psi Signup and view all the answers

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

within 3 minutes Signup and view all the answers

How much psi does the governor cut off engage?

120-140 psi Signup and view all the answers

How often should trucks check their cargo?

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

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

10', 100', and 200' toward the oncoming traffic Signup and view all the answers

How far should your cones be apart on obstructed view?

100'-500' Signup and view all the answers

What is perception distance?

the time you see it until your brain recognizes it Signup and view all the answers

What is reaction distance?

the time before you actually hit the brakes Signup and view all the answers

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

Less traction 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?

every 2 hours or 100 miles Signup and view all the answers

How many straps should cargo have on it?

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

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

1 inch Signup and view all the answers

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

45 sec Signup and view all the answers

How much play can a belt have to be operational?

up to 3/4 inch of play 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?

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

How do you test hydraulic brakes?

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

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

1 inch Signup and view all the answers

How do you test a parking brake?

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. Signup and view all the answers

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

more than 1/4 Signup and view all the answers

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

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

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

stop immediately Signup and view all the answers

How do you test a service brake?

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

How far ahead should you be looking?

12-15 sec 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?

perception distance + reaction distance + braking distance Signup and view all the answers

The average driver has a reaction time of what?

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

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

419 ft Signup and view all the answers

Hydroplaning can happen at speeds as low as?

30 mph Signup and view all the answers

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

before you enter the curve Signup and view all the answers

What can change depending on if the vehicle is loaded?

the space under the vehicle Signup and view all the answers

What do you check when you check your tires?

tire mounting and air pressure Signup and view all the answers

What is controlled braking?

Braking as hard as you can without locking the wheels, with very little steering wheel movements. If wheels lock, release, and do it again. 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?

S-cam drum brake Signup and view all the answers

At what pressure will the warning signal come on?

55 psi Signup and view all the answers

When will the spring brakes fully come on?

20-45 psi (typically 20-30 psi) Signup and view all the answers

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

perception distance + reaction distance + brake lag distance + braking distance Signup and view all the answers

What is total stopping distance going 45 mph?

346' Signup and view all the answers

Build air pressure until governor cut out, which is?

roughly 120-140 psi 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.