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Question 1 of 20
1. Question
During walkaround inspections of your vehicle, which parts of the air brake system should be checked?——–Durante las inspecciones de su vehiculo, que partes del sistema de frenos de aire deben revisarse?
_____CorrectIncorrectHint
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Question 2 of 20
2. Question
From the following options, the first thing you must do when a low air pressure signal light is on, is…——–De las siguientes opciones, lo primero que debe hacer cuando una luz de señal de baja presion de aire esta encendida, es …
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Question 3 of 20
3. Question
Most heavy-duty vehicles nowadays have a dual air brake system. What is a dual air brake system?——–La mayoria de los vehiculos pesados en la actualidad tienen un sistema de doble freno de aire. Que es un sistema de doble freno de aire?
_____CorrectIncorrectHint
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Question 4 of 20
4. Question
Most newer heavy-duty vehicles use dual air brake systems for safety. A dual air brake system has ——–La mayoria de los vehiculos pesados mas nuevos utilizan sistemas de frenos de aire dobles para mayor seguridad. Un sistema de doble freno de aire tiene
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Question 5 of 20
5. Question
Pressing and releasing the brake pedal unnecessarily can?——–Presionar y soltar el pedal del freno innecesariamente puede?
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Question 6 of 20
6. Question
Some vehicles have a modulating control valve. What does a modulating control valve do??——–Algunos vehiculos tienen una valvula de control modulante. Que hace una valvula moduladora de control?
_____CorrectIncorrectHint
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Question 7 of 20
7. Question
Spring brakes do which of the following? ——– Como Trabajan los Frenos de resorte?
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Question 8 of 20
8. Question
The air brake lag distance at 55 mph on dry pavement adds about how many feet?——–La distancia de demora del freno de aire a 55 mph en el pavimento seco agrega aproximadamente cuantos pies?
_____CorrectIncorrectHint
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Question 9 of 20
9. Question
To check the slack adjusters on S-cam brakes, you should park on?——–Para verificar los ajustadores de holgura en los frenos de leva S, debe estacionar en?
_____CorrectIncorrectHint
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Question 10 of 20
10. Question
What are you testing when you wait for normal air pressure, release the parking brake, move the vehicle forward at about 5 mph, and apply the brakes firmly using the brake pedal?——–Que esta probando cuando espera la presion de aire normal, suelte el freno de estacionamiento, mueva el vehiculo hacia adelante a aproximadamente 5 mph y aplique los frenos firmemente con el pedal del freno?
_____CorrectIncorrectHint
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Question 11 of 20
11. Question
What does it mean when the “wig wag” drops a mechanical arm into your view?——–Que significa cuando el “wig wag” coloca un brazo mecanico en tu vista?
_____CorrectIncorrectHint
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Question 12 of 20
12. Question
The braking system that applies and releases the brakes when the driver uses the brake pedal is the ________________ brake system?——–El sistema de frenos que aplica y libera los frenos cuando el conductor usa el pedal del freno es el sistema de frenos ________________?
_____CorrectIncorrectHint
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Question 13 of 20
13. Question
When the parking brake is engaged, what does it do to the spring brakes?——–Cuando se activa el freno de estacionamiento, que hace con los frenos de resorte?
_____CorrectIncorrectHint
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Question 14 of 20
14. Question
During a hydraulic brake inspection, you should pump the brake pedal three times and then verify that the pedal holds for five seconds, if the brakes are working correctly the pedal should?——–Durante una inspeccion del freno hidraulico, debe bombear el pedal del freno tres veces y luego verificar que el pedal se mantiene durante cinco segundos, si los frenos funcionan correctamente, que deberia hacer el pedal?
_____CorrectIncorrectHint
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Question 15 of 20
15. Question
If application pressure must be increased to maintain a certain speed while going down a steep grade, then this most likely means what?——–Si se debe aumentar la presion de la aplicacion para mantener una cierta velocidad mientras se desciende en una pendiente pronunciada, entonces esto probablemente significa que?
_____CorrectIncorrectHint
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Question 16 of 20
16. Question
Should the low air pressure warning light come on before the air pressure in the tanks drops below the psi level?——–Deberia encenderse la luz de advertencia de baja presion de aire antes de que la presion de aire en los tanques caiga por debajo del nivel de psi?
_____CorrectIncorrectHint
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Question 17 of 20
17. Question
protects the tank and the rest of the air system from too much pressure?——–Que protege al tanque y el resto del sistema de aire de demasiada presion? presion?
_____CorrectIncorrectHint
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Question 18 of 20
18. Question
You have a fully charged air system (125 psi). After turning off the engine and releasing the service brake, what are the maximum leak rates per minute for individual and combined vehicles?——–Tienes un sistema de aire completamente cargado (125 psi). Despues de apagar el motor y soltar el freno de servicio, cuales son las tasas de fuga maximas por minuto para vehiculos individuales y combinados?
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Question 19 of 20
19. Question
A pressure gauge tells you how much air there is in…——–Un medidor de presion le dice cuanto aire hay en …
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Question 20 of 20
20. Question
Which of the following is a proper technique in using controlled braking? ——–Que sistema de frenado por aire es el mas comun?
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