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Electrical System in an Automobile Quiz

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Questions and Answers

What is the purpose of accumulating a low amp high volt in a condenser?

To generate high voltage current at the moment the spark is generated (correct)

To weaken the mixture strength because of reduced exhaust pressure

To prevent a weak spark when the throttle is opened rapidly at altitude

To correct for variations in the fuel-air ratio due to decreased air density at altitude

What is the main function of a turbocharger?

Decrease fuel consumption

Cause an automatic increase in engine RPM as altitude is gained

Maintain a lower temperature of vapor

Increase cylinder scavenging efficiency (correct)

How does a charger affect engine thermal efficiency?

It raises engine back pressure

It lowers friction during gas change

It leads to a leaner mixture at higher altitudes

It causes an automatic decrease in engine RPM as altitude is gained (correct)

Why would a low temperature of vapor be desirable?

To improve cylinder scavenging Signup and view all the answers

How does adjusting for variations in fuel-air ratio relate to air density?

Air density decreases at higher altitudes, affecting the fuel-air ratio Signup and view all the answers

Why is it necessary to generate a high voltage current at the moment the spark is produced?

To ensure a strong spark is generated for combustion Signup and view all the answers

Study Notes

Ignition System

The ignition system uses a high intensity magnetic field to generate a spark.
The spark is generated by breaking the primary circuit, which induces a low amp, high voltage current.

Ignition Coil Function

The ignition coil accumulates a low current from the battery and converts it into a high voltage current when the spark is generated.

Spark Generation

The spark is generated by setting a high amp, low voltage current in the primary circuit.

Fuel-Air Mixture Adjustment

The fuel-air mixture is adjusted to prevent a weak spark when the throttle is opened rapidly at altitude.
The adjustment corrects for variations in the fuel-air ratio due to decreased air density.
The mixture strength is enriched due to decreased air density at high altitude.

Turbocharger Function

A turbocharger increases the engine's thermal efficiency.
It does not automatically increase the engine's RPM as altitude is gained.
It reduces fuel consumption.

Engine Performance

Lower friction is achieved during the gas exchange.
Lower back pressure occurs during the gas exchange.
A leaner mixture is achieved at higher altitude.

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Description

Test your knowledge on the electrical system in an automobile with this quiz. Questions cover topics such as high intensity magnetic fields, distributor timing, primary current breaking, spark generation, condenser accumulation, and more.