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FREE 2024 Massachusetts (MA) Dobles - Triples Revisión rápida 3

2024 MA Información de Dobles - Triples

El respaldo de CDL en dobles y triples otorga la capacidad de conducir una combinación de múltiples remolques conectados a un camión o unidad de potencia. Tenga en cuenta que es ilegal tirar de remolques triples en muchos estados. Los trabajos dobles y triples normales pueden incluir UPS, Fedex y más.

Hemos compilado 60 de las preguntas de respaldo de dobles y triples más utilizadas, y nuestras preguntas se basan en la información provista por el manual de conductores 2024 Massachusetts CDL. El examen en sí tendrá 20 preguntas de opción múltiple, y debe obtener al menos un 80% (16 de 20) para aprobar el examen de dobles y triples.

Nuestras pruebas de práctica de CDL se basan en el examen real, una pregunta por página, respuestas de opción múltiple y una oportunidad para hacerlo bien. Sin embargo, nuestras pruebas de práctica proporcionarán comentarios inmediatos, mostrando la pregunta nuevamente, destacando la respuesta correcta y dando una breve explicación de por qué esa respuesta es correcta.

Image of Massachusetts's Driver's License

Based on the 2024 MA CDL Driver's Manual

MA Dobles - Triples Fact Sheet
Questions on Test:
20
Correct answers needed to pass:
16
Passing Score:
80%
Age to apply:
18
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¿Como puede estar seguro de que suministro aire a un segundo remolque?

Possible Answers:

vaya a la parte trasera del segundo remolque y abra la linea de emergencia apagada
ver cada medidor de aire remolques para una gota de 30 PSI
aplique la valvula de mano a 10 mph, debe detenerse a la misma distancia que un camion con un remolque a 5 mph
Answer:
vaya a la parte trasera del segundo remolque y abra la linea de emergencia apagada
Explanation:
último remolque. Debe escuchar el escape de aire, mostrando todo el sistema esta cargado.
Califica esta prueba:
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  1. How can you be sure you supplied air to a second trailer?
  2. If a converter dolly is still under the second trailer and you unlock the pintle hook, what will probably happen?
  3. You are visually checking the coupling of a converter dolly to the rear trailer. How much space should be between the upper and lower fifth wheel?
  4. When you uncouple twin trailers, the last step is to
  5. Converter dollies
  6. You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel chocks you should:
  7. Empty trucks:
  8. When parking your double or triple combination, you should look for a parking space
  9. With the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the rig. When you do this, you should hear:
  10. Which of these in not a good thing to do when driving on slippery roads?
  11. Double and triple combination vehicles are ________ stable than other types of commercial vehicles.
  12. You are driving a 100-foot twin trailer combination at 50 mph. The road is dry, and visibility is good. You should keep at least _____ seconds of space ahead of you.
  13. Which of these in not a good thing to do when driving on slippery roads?
  14. Which of these will result in the best control on curves?
  15. You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking you should:
  16. You are doing a walk around inspection of a double or triple trailer rig. You should be sure the converter dolly air tank drain valves are _____ and the pintle hook is _____.
  17. During an inspection of a double or triple combination, check the usual things for any combination vehicle and check
  18. You have connected the converter dolly to the front semitrailer and then connected the rear semitrailer to the converter dolly. How should you test the coupling?
  19. The first step in uncoupling a converter dolly is
  20. Why must you inspect your double or triple combination vehicle more extensively than a vehicle with only one such semitrailer?
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