Test de mantenimiento y reparación de vehículos en inglés técnico

Question 1

Which of the following is NOT considered a routine preventative maintenance procedure for an internal combustion engine?

Accepted Answer

Tire rotation

Answer

Oil change

Answer

Air filter cleaning

Answer

Spark plug replacement

Question 2

What is the main purpose of the timing belt in an internal combustion engine?

Accepted Answer

To synchronize the rotation of the camshaft with the crankshaft

Answer

To reduce engine noise

Answer

To drive the oil pump

Question 3

Which of the following diagnostic tools is primarily used to identify electrical faults in a vehicle?

Accepted Answer

Multimeter

Answer

Compression tester

Answer

Vacuum gauge

Question 4

What is the primary function of a catalytic converter in an automobile?

Accepted Answer

To reduce harmful emissions

Answer

To regulate engine temperature

Answer

To increase engine power

Answer

To improve fuel efficiency

Question 5

Which type of gasket is commonly used to seal oil passages in an engine?

Accepted Answer

O-ring

Answer

Metal gasket

Answer

Rubber gasket

Answer

Paper gasket

Question 6

What is the primary reason for using a torque wrench when tightening bolts on an engine?

Accepted Answer

To ensure proper tightening without over- or under-tightening

Answer

To measure the torque applied to the bolt

Answer

To loosen bolts that are stuck

Question 7

Which of the following is a common symptom of a faulty fuel injector?

Accepted Answer

Rough idling

Answer

Braking problems

Answer

Overheating

Question 8

What is the primary purpose of a piston ring in an internal combustion engine?

Accepted Answer

To seal the combustion chamber and prevent gas leakage

Answer

To transfer heat from the piston to the cylinder head

Answer

To lubricate the cylinder walls

Question 9

Which type of lubrication system is commonly used in modern combustion engines?

Accepted Answer

Pressure-fed lubrication

Answer

Mist lubrication

Answer

Gravity-fed lubrication

Answer

Splash lubrication

Question 10

¿Qué herramienta se emplea específicamente para medir la presión de compresión en un motor?

Accepted Answer

Manómetro de compresión

Answer

Osciloscopio

Answer

Llave dinamométrica

Answer

Multímetro

Question 11

¿Cuál es la función principal de una junta de culata?

Accepted Answer

Sellar la unión entre el bloque motor y la culata para evitar fugas de fluidos y gases

Answer

Lubricar las válvulas

Answer

Enfriar el motor

Answer

Transmitir la potencia del cigüeñal

Question 12

¿Qué tipo de bujía es más adecuada para motores de alto rendimiento que requieren un encendido más eficiente?

Accepted Answer

Bujía de iridio

Answer

Bujía de platino

Answer

Bujía de níquel

Answer

Bujía de cobre

Question 13

¿Cuál es el objetivo principal de un filtro de aire en el sistema de admisión de un motor de combustión interna?

Accepted Answer

Eliminar impurezas y partículas del aire de admisión para proteger los componentes del motor

Answer

Enfriar el aire de admisión

Answer

Transmitir la potencia del motor a las ruedas

Answer

Lubricar los componentes del motor

Question 14

¿Qué tipo de aceite lubricante es más adecuado para motores diésel de alta potencia que operan en condiciones exigentes?

Accepted Answer

Aceite sintético

Answer

Aceite semisintético

Answer

Aceite para motores de gasolina

Answer

Aceite mineral

Question 15

¿Cuál es el propósito fundamental de un sistema de refrigeración en un motor?

Accepted Answer

Regular y mantener la temperatura del motor dentro de un rango óptimo para un funcionamiento eficiente

Answer

Proporcionar potencia al motor

Answer

Lubricar los componentes del motor

Question 16

¿Cuál es el objetivo principal de un sistema de frenos ABS en un vehículo?

Accepted Answer

Evitar que las ruedas se bloqueen durante el frenado, permitiendo un control direccional y una distancia de frenado más corta

Answer

Reducir el consumo de combustible

Answer

Aumentar la potencia de frenado

Question 17

¿Qué tipo de sistema de suspensión proporciona el nivel más alto de comodidad al absorber eficazmente los impactos y las vibraciones?

Accepted Answer

Suspensión neumática

Answer

Suspensión de muelles

Answer

Suspensión de ballestas

Answer

Suspensión de barras de torsión

Question 18

Identify the primary purpose of regular vehicle maintenance.

Accepted Answer

Prevent costly repairs and ensure optimal performance

Answer

Increase fuel consumption

Answer

Enhance aesthetic appearance

Question 19

Which task is NOT included in routine internal combustion engine maintenance?

Accepted Answer

Transmitting data to the engine control unit (ECU)

Answer

Checking oil levels

Answer

Testing battery voltage

Answer

Replacing spark plugs

Question 20

When tightening bolts and nuts, why is it important to use a torque wrench?

Accepted Answer

To ensure proper tension and prevent component damage

Answer

To expedite the repair process

Answer

To create a more secure connection than with a regular wrench

Question 21

In electrical troubleshooting, which tool is essential for tracing wires and finding faulty connections?

Accepted Answer

Multimeter

Answer

Diagnostic scanner

Answer

Voltage tester

Answer

Compression tester

Question 22

When diagnosing a vehicle's fuel system problem, which step is recommended?

Accepted Answer

Use a fuel pressure gauge to test fuel pressure

Answer

Scan for fault codes using a scanner

Answer

Shake the gas tank for fuel sounds

Answer

Inflate tires to the correct pressure

Question 23

What is the function of a catalytic converter in a vehicle's exhaust system?

Accepted Answer

Reduce harmful emissions by converting pollutants into less toxic gases

Answer

Increase engine power

Answer

Enhance fuel economy

Question 24

Which oil type is typically used to lubricate moving parts in an internal combustion engine?

Accepted Answer

Engine oil

Answer

Brake fluid

Answer

Power steering fluid

Answer

Transmission fluid

Question 25

What is the primary purpose of using a diagnostic scanner during vehicle repair?

Accepted Answer

Retrieve trouble codes from the vehicle's computer

Answer

Adjust vehicle engine timing

Answer

Reset vehicle airbag system

Question 26

¿Qué tarea NO forma parte del mantenimiento preventivo de un vehículo automóvil?

Accepted Answer

Reparar el motor de combustión interna

Answer

Revisar los niveles de los fluidos

Answer

Cambiar el aceite

Answer

Inspeccionar los filtros

Question 27

¿Cuál es la herramienta adecuada para medir la presión del combustible en un motor de combustión interna?

Accepted Answer

Manómetro

Answer

Osciloscopio

Answer

Multímetro

Answer

Analizador de gases de escape

Question 28

¿Qué técnica se utiliza para diagnosticar problemas en los sistemas eléctricos de los vehículos?

Accepted Answer

Prueba de continuidad

Answer

Cromatografía de gases

Answer

Espectroscopia de masas

Answer

Análisis de espectros

Question 29

¿Qué tipo de junta se usa para sellar la culata del motor de combustión interna?

Accepted Answer

Junta de culata

Answer

Junta de estanqueidad

Answer

Junta tórica

Answer

Arandela de estanqueidad

Question 30

El propósito de utilizar una llave dinamométrica al apretar los tornillos de un vehículo es:

Accepted Answer

Aplicar el par de apriete correcto

Answer

Garantizar una distribución uniforme de la carga

Answer

Evitar dañar las roscas

Answer

Apretar los tornillos con la máxima fuerza

Question 31

¿Qué tipo de filtro elimina las partículas de suciedad del aire de admisión?

Accepted Answer

Filtro de aire

Answer

Filtro de habitáculo

Answer

Filtro de combustible

Answer

Filtro de aceite

Question 32

¿Cuál es un síntoma común de problemas en la suspensión?

Accepted Answer

El vehículo se balancea o rebota excesivamente

Answer

Frenos que chirrían

Answer

Luces que no funcionan

Answer

Motor que falla

Question 33

¿Qué tipo de refrigerante se usa comúnmente en los motores de combustión interna modernos?

Accepted Answer

Etilenglicol

Answer

Agua

Answer

Metanol

Answer

Glicerina

Question 34

Una ventaja de los sistemas de inyección electrónica de combustible es:

Accepted Answer

Mayor eficiencia del combustible

Answer

Menor nivel de ruido

Answer

Menor coste de mantenimiento

Answer

Mayor potencia

Question 35

Which of the following is NOT a type of maintenance?

Accepted Answer

Reactive maintenance

Answer

Preventive maintenance

Answer

Predictive maintenance

Answer

Corrective maintenance

Question 36

Which component is responsible for converting harmful exhaust emissions into less toxic substances?

Accepted Answer

Catalytic converter

Answer

Oxygen sensor

Answer

Muffler

Answer

Exhaust manifold

Question 37

What is the function of the timing belt in an internal combustion engine?

Accepted Answer

Synchronizing the rotation of the crankshaft and camshaft.

Answer

Reducing engine vibrations.

Answer

Driving the water pump and alternator.

Answer

Improving fuel efficiency.

Question 38

Which tool is specifically designed to measure electrical current?

Accepted Answer

Ammeter

Answer

Voltmeter

Answer

Multimeter

Answer

Ohmmeter

Question 39

Identify the primary objective of a vehicle's suspension system.

Accepted Answer

Providing a smooth ride by absorbing road shocks.

Answer

Increasing ground clearance.

Answer

Improving fuel economy.

Answer

Enhancing handling and stability.

Question 40

Which steering system utilizes a rack and pinion mechanism for vehicle control?

Accepted Answer

Rack and pinion

Answer

Hydraulic

Answer

Chain driven

Answer

Belt driven

Question 41

What is the primary purpose of a differential in a vehicle's powertrain?

Accepted Answer

Allowing wheels to rotate at different speeds while transmitting power.

Answer

Increasing torque to the wheels.

Answer

Reducing friction between tires and the road.

Answer

Improving fuel efficiency.