Dashboard

Dashboard

Introduction (permit)

1. CDL Requirements & Tests

2. CDL Endorsements & Restrictions

3. CDL License Restrictions

4. CDL Training: Learn to Drive

5. CDL Medical Documentation

6. CDL Disqualifications

7. CDL Traffic Violations

8. IRP & IFTA for CDL Drivers

Driving Safely (permit)

1. Drive Safely

2. CDL Training: Look For

3. CDL Vehicle Inspection

4. Seven-Step Inspection Method

5. 7-Step Inspection Method

6. Proper Vehicle Control

7. Shifting Gears

8. CDL Training: Seeing Around

9. Signaling Intentions

10. Controling Speed

11. Match Speed with Road

12. Drive Safely on Curves

13. Managing Space

14. Managing Vehicles Around You

15. Safe Turns in Truck/Bus

16. Spot Hazards on Road

17. Spot Hazards on RoadCDL Training

18. See Hazards on Road

19. Distracted Driving CDL

20. Aggressive Driving & Rage

21. Driving at Night CDL

22. Night Driving Procedures

23. Drive Safely in Fog

24. Vehicle for Winter Driving

25. Drive in Winter Conditions

26. Driving In Hot Weather

27. Railroad-Highway Crossings

28. Safe Railroad Crossing

29. Mountain Driving CDL

30. Brake Fade

31. Avoid Driving Emergencies

32. Stop Quickly and Safely

33. Recognize Tire Failure

34. Antilock Braking Systems

35. ABS to Brake Safely

36. Learn Braking Without ABS

37. Skid Control & Recovery

38. Truck Accident Procedures

39. Truck Fire Causes & Prevention

40. Alcohol & Drugs & Driving

41. Stay Alert & Fit to Drive

42. Stay Alert While Driving

43. Hazardous Materials Rules

44. Safely Load Hazardous Products

Transporting Cargo Safely (permit)

1. Cargo Safety

2. Legal Weight Limits for Trucks

3. Secure Cargo for CDL

4. Handle Special Cargo

Transporting Passengers Safely (endors)

1. Transporting Passengers

2. Load & Trip Start a Bus

3. Passenger Supervision & Accidents

4. Drawbridges & Brake-Door Interlocks

Air Brakes (permit)

1. Learn Air Brakes

2. Air Brake Systems for Trucks

3. Air-Brake Systems & Foundation

4. Air-Brake PartsCDL Training

5. Air-Brake System Spring Brakes

6. Air Brake Systems for Trucks

7. Dual Air Brake Systems for Trucks

8. Inspect Air Brake Systems

9. Air Brake Check

10. CDL Air Brake Check for Trucks

11. Use Air Brakes for Trucks

12. Emergency Stops in a Truck

13. Properly Brake on Downgrades

14. Safely Park Truck Low Air

Combination Vehicles (permit)

1. Drive Combination Vehicles Safely

2. Steer Gently for CDL

3. Handle Railroad-Highway Crossings

4. Turn Wide with a Trailer

5. Combination Vehicle Air Brakes

6. Trailer Air Lines for CDL

7. Connect Hose Couplers (Glad Hands)

8. Trailer Air Tanks & Brakes

9. Antilock Brake Systems for Trucks

10. Couple & Uncouple Trucks Safely

11. Couple and Uncouple a Truck

12. Safely Uncouple Tractor-Semitrailers

13. Inspect a Combination Vehicle

14. Check Air Brakes on Combos

Doubles and Triples (endors)

1. Doubles & Triples Safety

2. Couple & Uncouple Trailers Safely

3. Uncouple Twin & Triple Trailers

4. Inspect Doubles & Triples

5. Check Air Brakes on Doubles/Triples

Tank Vehicles (endors)

1. CDL Training: Section 8 Tanks

2. Drive Tank Vehicles Safely

3. Tanker Safe Driving Rules

Hazardous Materials (endors)

1. Hazardous Materials Regulations

2. Intent of Hazmat Regulations

3. Hazardous Materials Responsibility

4. Hazmat Communication Rules

5. Placards & Regulated Products

6. Hazardous Materials Table

7. Hazardous Substances & Quantities

8. Fill Out Hazmat Shipping Paper

9. Hazmat Shipping Paper Requirements

10. Recognize Hazardous Materials

11. Placarding for CDL Trucks

12. Load & Unload Hazardous Cargo

13. Load & Unload Hazardous Cargo

14. Loading/Unloading Hazardous Cargo

15. Bulk Packaging Markings, Loading

16. Load/Unload Hazmat Tanks

17. Hazmat Driving & Parking Rules

18. Hazmat Route Restrictions

19. Keep Shipping Papers & Info

20. Respond to Hazmat Emergencies

21. Control Truck Fires & Leaks

22. Respond to CDL Training Hazards

23. Required Notification for CDL

24. Hazardous Materials Glossary

25. Hazmat Glossary

School Bus (endors)

1. CDL School Bus Safety

2. School Bus Loading/Unloading

3. Loading/Unloading for CDL

4. School Bus Unloading

5. Loading/Unloading Dangers

6. Emergency Exit/Evacuation CDL

7. Emergency Evacuation Procedures

8. Railroad-Highway Crossings

9. School Bus/Train Crossings

10. CDL Training: Special Situations

11. Antilock Braking Systems

12. Safely Operate a School Bus

Vehicle Inspection (permit)

1. CDL Pre-Trip Vehicle Inspection

2. Inspect Vehicle Parts for CDL

3. CDL Training: Cab Check

4. CDL Training: Check Oil Pedals

5. Inspect Steering & Suspension

6. CDL Training: Brake Wheel Checkup

7. Inspect Truck for CDL Training

8. Inspect Tractor & Coupling Lines

9. CDL Drivers: School Bus Inspection

10. Inspect Trailer for CDL Training

11. Inspect Coach/Bus

Basic Vehicle Control Skills Test (permit)

1. CDL Basic Vehicle Control Skills

2. CDL Training: Exercises & Maneuvers

On-Road Driving (permit)

1. CDL Training On-road Driving

2. On-Road Driving: Intersections

3. CDL Training: On-Road Part 3

4. On-Road Driving: Behaviors

Logbook (job)

1. Learn Hours of Service Regulations

2. HOS Regulations for Truckers

3. Understanding HOS Regulations

4. On-Duty & Off-Duty Time

5. 14-Hour On-Duty Limit

6. 11-Hour Driving Limit for Trucks

7. Calculating 70-Hour Limit

8. Adverse Driving Conditions/16hr

9. Split-Sleeper-Berth Rule

10. Split Sleeper Provision

11. Calculate Hours with Sleeper Rule

12. Maximize Hours with CDL Tips

Weight And Balance (job)

1. Weight & Balance Laws for Trucks

2. Weight Transfer for Truck Drivers

3. Limitations of Axle Spacing

4. Scale Truck for CDL Training

5. Position of Trailer Tandems

6. Load Cargo for Axle Balance

7. Calculate Fuel Weight for CDL

8. Calculate Truck Driver Fuel

9. Calc Fuel Burnoff for Trucks

10. Slide 5th Wheel for Training

Flatbed Cargo Securement (job)

1. Learn Cargo Securement Fund.

2. Cargo Securement Requirements

3. Learn Securement Systems

4. Learn Containing, Immobilizing

5. Tie-Down Reqs for Trucks

6. Cargo Tie-Downs: Working Load

7. Learn Aggr. Working Load

8. Securement System for Logs

9. Secure Logs Loaded Lengthwise

10. Secure Building Materials

11. Secure Bundles of Lumber

12. Secure Metal Coils in Truck

13. Secure Coils Eyes Crosswise

14. Secure Coils Eyes Lengthwise

15. Secure Coils for Truck Drivers

16. Secure Paper Rolls for CDL

17. Load & Secure Paper Rolls Vert.

18. Secure Paper Rolls Vert. CDL

19. Secure Paper Rolls Horiz.

20. Load & Secure Paper Rolls

21. Cargo Securement for Pipe

22. Reqs. Arrange Concrete Pipe

23. Securing Pipe Inside Diam. 1.143

24. Securing Pipe Inside Diam. 1143

25. Secure Intermodal Containers

26. Secure Autos, Light Trucks, Vans

27. Secure Heavy Vehicles, Equip.

28. Secure Flattened/Crushed Vehicles

29. Secure Roll-On/Roll-Off Hook

30. Secure Large Boulders Tranport

31. Secure Large Boulders CDL

32. Metal Coil Securement CDL

New York State Coil Endorsement (endors)

1. Cargo Securement for Trucks

2. Securement Devices & Dunnage

3. Strength Ratings Blocking System

4. Cargo Roll Prevention Training

5. Indirect Tie-Downs for CDL

6. Min. Tie-Downs for Cargo

7. Metal Coil Securement CDL

8. Securement Reqs. for Metal Coils

9. Securement Reqs. for Metal Coils

10. CDL: Learn Cargo Securement

Go To The Dashboard

Note: Your are not logged in. We can not keep your scores or track your progress unless you Register and Log In

7.2.2 – Uncoupling Twin Trailers

Uncouple Rear Trailer

  • Park rig in a straight line on firm level ground.
  • Apply parking brakes so rig will not move.
  • Chock wheels of second trailer if it does not have spring brakes.
  • Lower landing gear of second semitrailer enough to remove some weight from dolly.
  • Close air shut-offs at rear of first semitrailer (and on dolly if so equipped).
  • Disconnect all dolly air and electric lines and secure them.
  • Release dolly brakes.
  • Release converter dolly fifth wheel latch.
  • Slowly pull tractor, first semitrailer and dolly forward to pull dolly out from under rear semitrailer.

Uncouple Converter Dolly

  • Lower dolly landing gear.
  • Disconnect safety chains.
  • Apply converter gear spring brakes or chock wheels.
  • Release pintle hook on first semitrailer.
  • Slowly pull clear of dolly.

Never unlock the pintle hook with the dolly still under the rear trailer. The dolly tow bar may fly up, possibly causing injury and making it very difficult to re-couple.

7.2.3 – Coupling and Uncoupling Triple Trailers

Couple Tractor/First Semitrailer to Second/Third Trailers

  • Couple tractor to first trailer. Use the method already described for coupling tractor semitrailers.
  • Move converter dolly into position and couple first trailer to second trailer using the method for coupling doubles. Triples rig is now complete.

Uncouple Triple-Trailer Rig

  • Uncouple third trailer by pulling the dolly out and then unhitching the dolly using the method for uncoupling doubles.
  • Uncouple remainder of rig as you would any double-bottom rig using the method already described.

7.2.4 – Coupling and Uncoupling Other Combinations

The methods described so far apply to the more common tractor-trailer combinations. However, there are other ways of coupling and uncoupling the many types of truck-trailer and tractor-trailer combinations that are in use. There are too many to cover in this manual. You will need to learn the correct way to couple and uncouple the vehicle(s) you will drive according to the manufacturer and/or owner specifications.

Multiple-Choice Questions:

Question #350 (1 of 1)
Report This Question

Give a brief explanation of the problem:

Optional: Leave your email address if you would like a reply:

Report Cancel

When uncoupling doubles or triples, what is important to know about unlocking the pintle hook?

  • Unlock the pintle hook only if the trailer it is under is loaded, otherwise the dolly tow bar may fly up, possibly causing injury and making it very difficult to re-couple.
  • Always unlock the pintle hook with the dolly still under the rear trailer. Otherwise, the dolly tow bar may fly up, possibly causing injury and making it very difficult to re-couple.
  • None of these are correct
  • Never unlock the pintle hook with the dolly still under the rear trailer. The dolly tow bar may fly up, possibly causing injury and making it very difficult to re-couple.
Click here to look up the answer
Never unlock the pintle hook with the dolly still under the rear trailer. The dolly tow bar may fly up, possibly causing injury and making it very difficult to re-couple.
Next

Complete!

You can Return To The Table Of Contents

Go To The Dashboard

Why Join Trucking Truth?

We have an awesome set of tools that will help you understand the trucking industry and prepare for a great start to your trucking career. Not only that, but everything we offer here at TruckingTruth is 100% free - no strings attached! Sign up now and get instant access to our member's section:
High Road Training Program Logo
  • The High Road Training Program
  • The High Road Article Series
  • The Friendliest Trucker's Forum Ever!
  • Email Updates When New Articles Are Posted
Register Learn More

Apply For Paid CDL Training Through TruckingTruth

Did you know you can fill out one quick form here on TruckingTruth and apply to several companies at once for paid CDL training? Seriously! The application only takes one minute. You will speak with recruiters today. There is no obligation whatsoever. Learn more and apply here:

Apply For Paid CDL Training