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Double-Triple Trailers Sample Test G

1. Is it important to be careful when driving doubles and triples?
A True
B False
C
D

2. Special care should be taken when pulling two or three trailers because more things can go wrong and are less stable than other commercial vehicles.
A True
B False
C
D

3. Doubles and triples are not as likely to turn over as are other combination vehicles.
A True
B False
C
D

4. Is it alright to not check all the critical parts when doing a pretrip inspection on doubles or triples?
A Yes
B No
C
D

5. When driving doubles or triples how whould they be driven to avoid rollover or jackknifing?
A Fast
B Smoothly
C Slowly
D

6. Doubles and triples take up more space and are longer than other commercial vehicles, but do they need more space to turn?
A Yes
B No
C
D

7. For the safest handling on the road when pulling doubles and triples how should the load be positioned?
A The lighter load in first position, the heavier in the rear.
B The heavier load in first position, the lighter in the rear.
C It does not matter which trailer is heavier.
D You should equalize the load

8. What is a converter dolly used for?
A To couple tow or three trailers behind a tractor truck.
B To help move cargo in a semi-trailer.
C To couple a trailer to a tractor.
D None of the above

9. Do all converter dollies have spring brakes?
A Yes
B No
C
D

10. What three methods can you use to secure a second trailer before coupling?
A Release dolly brake by opening the air tank petcock or if the dolly has spring brake, use the dolly parking brake control.
B Wheel the dolly into position by hand so it is in line with the kingpin.
C Use the tractor and first semi trailer to pick up the converter dolly and move it into position.
D All of the above.

11. The dolly tow bar may fly up if you unlock the pintle hook with the converter dolly still under the rear trailer.
A True
B False
C
D

12. You should use different methods for uncoupling second and third trailers.
A True
B False
C
D

13. Coupling and uncoupling methods are the same for more common tractor-trailer combinations, but there are other ways of coupling and uncoupling the many types of truck-trailer combinations that are in use.
A True
B False
C
D

14. There are more things to inspect on a combination vehicle than on a single vehicle.
A True
B False
C
D

15. Should you do a walk around inspection when preparing to pull Doubles or Triples?
A Yes
B No
C
D

 


Score =

Correct answers:






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