20 тема

Multiple Choice

What is the role of the diagnostic lamp (MIL/Check Engine) in modern vehicles?

• To indicate fuel level

• To monitor engine temperature

• To help identify vehicle issues

• To control air conditioning

Multiple Choice

What is the purpose of a diagnostic lamp?

• Early detection of malfunctions

• Control of ecological systems

• Preventing costly repairs

• None of the above

Multiple Choice

How is the indicator activated in the vehicle diagnostic system?

• By detecting a malfunction

• By confirming an error

• By activating the MIL

• By monitoring sensor data

Multiple Choice

What is the purpose of checking the diagnostic lamp during ignition?

• To ensure it lights up

• To check fuel levels

• To test the battery

• To check engine oil

Multiple Choice

What does a steady light on the diagnostic lamp signify?

• No issues

• Immediate attention needed

• Normal operation

• Check engine

Multiple Choice

What should you do if the diagnostic lamp is flashing?

• Continue driving

• Stop immediately

• Check the engine

• Ignore it

Multiple Choice

What does a yellow/orange light indicate when using a diagnostic lamp?

• Warning

• Immediate stop

• Normal operation

• Check engine

Multiple Choice

What does it mean if the light does not turn on during startup?

• Lamp failure or disconnected

• Normal operation

• Engine is running fine

• No issues detected

Multiple Choice

What should you do if the yellow light blinks frequently?

• Serious malfunction, possible engine failure

• Check the fuel level

• Immediate stop and check engine

• Schedule a maintenance appointment

Multiple Choice

What does a constant yellow light indicate in a car?

• Critical malfunction affecting ecology or efficiency

• Planned visit to service

• Immediate stop and check engine

• Check lamp and scan for errors

Multiple Choice

What is a common cause of the EVAP system error P0440?

• Loose gas cap

• Faulty fuel pump

• Clogged fuel filter

• Bad spark plugs

Multiple Choice

What does the error code P171/P0174 signify?

• Too much air entering the engine

• Too little fuel in the mixture

• Faulty oxygen sensor

• Vacuum leak

Multiple Choice

What could cause the error code P0300?

• Incorrect spark plugs

• Dirty fuel injectors

• Faulty mass air flow sensor

• All of the above

Multiple Choice

What does the error code P0420 indicate?

• Low catalytic converter efficiency

• Too much fuel in the mixture

• Faulty spark plugs

• Evaporative system malfunction

Multiple Choice

What external factors can cause the warning light to activate?

• Low fuel

• High speed

• Water in the fuel system

• Cold weather

Multiple Choice

What is the effect of a serious error on the ECU?

• It can lead to engine failure

• It puts the vehicle in Limp Mode

• It has no effect on performance

• It improves fuel efficiency

Multiple Choice

What should you do if the warning light remains on after resetting the code?

• Ignore it

• Use the scanner only for reading

• Reset the code again

• Check for underlying issues

Multiple Choice

What is the main difference between a diagnostic lamp and a professional scanner?

• A diagnostic lamp provides detailed information about the problem.

• A professional scanner only indicates if there is a problem.

• A diagnostic lamp works in 'on/off' mode.

• A professional scanner reads DTC codes in real-time.

Multiple Choice

What was the reason for the MIL light to turn on in Case 3?

• Faulty fuel gauge

• Loose gas cap

• Bad spark plugs

• Oil leak

Multiple Choice

What action did the owner take to resolve the issue in Case 2?

• Replaced the engine

• Checked the fuel system

• Replaced the faulty sensor

• Ignored the warning light

Multiple Choice

What was the cause of the fuel economy issue in Case 1?

• Faulty temperature sensor

• Incorrect fuel type

• Dirty air filter

• Worn out spark plugs

Multiple Choice

A special fuel pressure gauge is required to check fuel pressure if an external sensor is not being used. 

• True

• False

Multiple Choice

A clogged fuel injector will cause a low fuel pressure reading. 

• True

• False

Multiple Choice

What are the benefits of early diagnostics in vehicle maintenance?

• Increases repair costs

• Reduces operational expenses

• Decreases driver awareness

• Improves vehicle aesthetics

Poll

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