Preguntas CDL de Guía del examen de manejo gratis

Preguntas de ejemplo de este examen

1. During the Vehicle Inspection test, what must you do for each item to get credit?Durante la prueba de inspección, ¿qué debe hacer con cada elemento para recibir puntos?
   1. Touch it and say "OK"
   2. Point to it silently
   3. Name it, point to or touch it, and explain what you are checking it for
   4. Write it on your checklist
   Ver respuesta

   Name it, point to or touch it, and explain what you are checking it for

   You only get credit when you name the item, point to and/or touch it, and explain what you are inspecting it for.

   Solo recibe puntos si nombra el elemento, lo señala y/o toca, y explica qué está revisando.

2. Which vehicle cannot be used for the Vehicle Inspection test?¿Qué vehículo no se puede usar para la prueba de inspección?
   1. A vehicle with circuit breakers instead of fuses
   2. A vehicle with cameras instead of mirrors
   3. A bus with a wheelchair lift
   4. A vehicle with parts labeled by someone other than the manufacturer
   Ver respuesta

   A vehicle with parts labeled by someone other than the manufacturer

   Vehicles with parts marked or labeled by anyone other than the manufacturer cannot be used.

   Los vehículos con piezas marcadas o etiquetadas por otros que no sean el fabricante no se pueden usar.

3. On a combination vehicle with trailer ABS, what should the trailer ABS lamp do when you start the vehicle?En un combinado con ABS en el remolque, ¿qué debe hacer la luz ABS del remolque al arrancar?
   1. Stay on the whole time
   2. Never come on
   3. Come on and then go off
   4. Flash until you drive
   Ver respuesta

   Come on and then go off

   The rear driver's side trailer ABS light should turn on and then turn off.

   La luz ABS trasera del lado del conductor del remolque debe encenderse y luego apagarse.

4. How do you show the windshield wipers work?¿Cómo demuestra que los limpiaparabrisas funcionan?
   1. Say they were replaced last month
   2. Lift the blades only
   3. Spray water on the glass with a hose
   4. Check the arms and blades are secure, then turn the wipers on and off
   Ver respuesta

   Check the arms and blades are secure, then turn the wipers on and off

   Inspect that arms and blades are secure and undamaged, then operate the wipers to show they work smoothly.

   Revise que brazos y plumas estén firmes y sin daños, y luego actívelos para mostrar que se mueven bien.

5. At about what pressure should the air compressor governor cut out?¿A qué presión aproximada debe cortar el gobernador del compresor?
   1. 60–80 psi
   2. 90–100 psi
   3. 120–140 psi
   4. 150–175 psi
   Ver respuesta

   120–140 psi

   Build air to governor cut-out, which happens at about 120–140 psi (or the manufacturer's level).

   Suba el aire hasta el corte del gobernador, que ocurre a unos 120–140 psi (o el nivel del fabricante).

6. On a combination vehicle, the tractor protection valve and trailer parking brake valve should pop out:En un combinado, la válvula de protección del tractor y la del freno del remolque deben saltar:
   1. Only after the tractor valve
   2. Never
   3. Above 100 psi
   4. At the same time as, or before, the tractor's valve
   Ver respuesta

   At the same time as, or before, the tractor's valve

   The trailer valves should close at the same time as or before the truck/tractor valve.

   Las válvulas del remolque deben cerrarse al mismo tiempo o antes que la del camión/tractor.

7. How many emergency exits must you actually demonstrate on a bus?¿Cuántas salidas de emergencia debe demostrar en un autobús?
   1. All of them
   2. None, you only describe them
   3. At least one, and describe how the others work
   4. Only the roof hatch
   Ver respuesta

   At least one, and describe how the others work

   Demonstrate at least one exit and point out and describe how all the others operate.

   Demuestre al menos una salida y señale y describa cómo funcionan las demás.

8. When inspecting passenger seats, you check that:Al inspeccionar los asientos de pasajeros, revisa que:
   1. Seats are reclined
   2. Seat frames are not broken and are firmly attached to the floor, with cushions secured
   3. Every seat has a seat belt
   4. Seats are clean
   Ver respuesta

   Seat frames are not broken and are firmly attached to the floor, with cushions secured

   No broken seat frames, frames firmly attached to the floor, and cushions securely attached.

   Sin marcos rotos, marcos fijos al piso y cojines bien sujetos.

9. Why is an underinflated tire dangerous?¿Por qué es peligrosa una llanta con poco aire?
   1. It flexes more and builds heat, which can cause a blowout
   2. It has more traction than needed
   3. It makes steering too light
   4. It wears only the center of the tread
   Ver respuesta

   It flexes more and builds heat, which can cause a blowout

   Underinflation increases flexing and heat buildup, raising the chance of a blowout.

   El poco aire aumenta la flexión y el calor, y sube el riesgo de reventón.

10. Play or movement in the steering linkage can cause:El juego en el varillaje de dirección puede causar:
    1. Better fuel mileage
    2. Smoother braking
    3. Quieter engine
    4. The vehicle to wander or other serious control problems
    Ver respuesta

    The vehicle to wander or other serious control problems

    Movement in the linkage can make the vehicle wander or cause serious control problems.

    El movimiento en el varillaje puede desviar el vehículo o causar problemas serios.

11. Why must the fuel tank be checked for leaks?¿Por qué se revisa si el tanque de combustible tiene fugas?
    1. Leaks only waste money
    2. Leaks make the engine louder
    3. Leaks are a fire hazard and fuel makes the road slippery
    4. Leaks are allowed if small
    Ver respuesta

    Leaks are a fire hazard and fuel makes the road slippery

    Fuel leaks are a fire hazard and make the pavement very slippery for other traffic.

    Las fugas son peligro de incendio y hacen muy resbaloso el pavimento.

12. Why must the landing gear be fully raised before driving?¿Por qué deben estar totalmente subidas las patas de apoyo antes de manejar?
    1. To make the trailer lighter
    2. So it does not hit the ground and clears the tractor in turns
    3. To help the brakes
    4. To lower the trailer height
    Ver respuesta

    So it does not hit the ground and clears the tractor in turns

    Landing gear must be raised so it will not strike the ground and must clear the power unit while turning.

    Las patas deben subirse para no golpear el suelo y librar el tractor al girar.

13. True or false: Stopping without changing direction counts as a pull-up.Verdadero o falso: Detenerse sin cambiar de dirección cuenta como pull-up.
    1. True
    2. False
    Ver respuesta

    False

    False. Stopping without changing direction does not count as a pull-up.

    Falso. Detenerse sin cambiar de dirección no cuenta como pull-up.

14. What happens if you stop during the Forward Offset Tracking exercise?¿Qué pasa si se detiene en el Recorrido desplazado hacia adelante?
    1. You get one free stop
    2. The exercise ends
    3. Nothing, stopping is allowed
    4. You must back up and retry
    Ver respuesta

    The exercise ends

    You may not stop, back up or exit in Forward Offset Tracking; if you stop, the exercise is ended.

    No puede detenerse, retroceder ni bajarse; si se detiene, el ejercicio termina.

15. When stopped behind another vehicle at a turn, a safe gap means you can:Al detenerse detrás de otro vehículo, un espacio seguro significa que puede:
    1. Read its license plate
    2. Touch its bumper
    3. See its rear tires on the pavement
    4. See its roof
    Ver respuesta

    See its rear tires on the pavement

    Stop where you can see the rear tires of the vehicle ahead.

    Deténgase donde pueda ver las llantas traseras del vehículo de adelante.