First Quarter Examination - Automotive Servicing 12

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Questions and Answers

What is the primary function of an automotive battery?

To power the headlights

To regulate the voltage in the vehicle

To store electrical energy for the starting system (correct)

To charge the alternator

Which component of the battery is responsible for producing electricity?

Regulator

Alternator

Starter motor

Battery cells (correct)

What is a common maintenance practice for automotive batteries?

Leaving exposed to extreme temperatures

Disregarding electrolyte levels

Repeatedly charging with no load

Cleaning terminals for optimal contact (correct)

How does a malfunctioning ignition coil typically affect the engine's performance?

Engine misfires or stalling Signup and view all the answers

What tool is essential for testing the ignition timing?

Timing light Signup and view all the answers

What is the main function of the ignition system in an automotive engine?

To ignite the air-fuel mixture in the cylinders Signup and view all the answers

Which component of the ignition system is responsible for distributing high voltage to the spark plugs?

Distributor Signup and view all the answers

What is the purpose of a fuse in an automotive wiring system?

To prevent electrical overload Signup and view all the answers

Which method is used to measure continuity in an electrical circuit?

Using a multimeter Signup and view all the answers

What indicates a wiring problem in the lighting system?

Headlights flickering or not working Signup and view all the answers

How can a technician identify a faulty ground connection in a lighting system?

Measuring voltage with a multimeter Signup and view all the answers

Which component serves as the main part of the starting system?

Starter motor Signup and view all the answers

What is a common symptom of a failing starter motor?

Engine turns over slowly or not at all Signup and view all the answers

What effect does a malfunctioning starter relay have on the overall starting system?

Prevents the engine from turning over Signup and view all the answers

Which tool is primarily used for testing an automotive charging system?

Voltmeter Signup and view all the answers

What is the purpose of the alternator in a vehicle's charging system?

To charge the battery and provide power to the electrical components Signup and view all the answers

Study Notes

Part I: Service Automotive Battery

Primary function is to store electrical energy for the starting system.
Battery cells are responsible for producing electricity.
Most common symptom of a failing battery is an unresponsive starter.
A fully charged battery reads 12.6 volts.
Common maintenance practice includes cleaning terminals for optimal contact.

Part II: Service Ignition System

Main function of the ignition system is to ignite the air-fuel mixture in the cylinders.
The distributor distributes high voltage to the spark plugs.
Malfunctioning ignition coil typically results in engine misfires or stalling.
Signs of a failing spark plug include difficulty starting the engine.
A timing light is essential for testing ignition timing.

Part III: Test and Repair Wiring/Lighting System

The purpose of a fuse is to prevent electrical overload.
The most common cause of a blown fuse in a lighting system is a short circuit.
Test for a short circuit using a multimeter to measure continuity.
Flickering or non-working headlights indicate a wiring problem.
A faulty ground connection can be identified by testing with a voltmeter.

Part IV: Service Starting System

The main component of the starting system is the starter motor.
A failing starter motor is indicated by the engine turning over slowly or not at all.
A malfunctioning starter relay prevents the engine from turning over.
A voltmeter is typically used to test the starting system's electrical circuit.
Checking battery voltage is the first step in diagnosing a no-start condition.

Part V: Service Charging System

The primary function of the alternator is to charge the battery and power the electrical system.
The voltage regulator regulates the output of the alternator.
Rapid battery discharge is a symptom of a failing alternator.
Use a multimeter to test the output of an alternator.
Recommended maintenance for the charging system includes cleaning battery terminals and other component terminals.

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Description

Test your knowledge of automotive battery servicing with this examination for Automotive Servicing 12. The quiz covers essential functions, components, and maintenance practices related to automotive batteries. Answer the questions to assess your understanding and readiness for practical application.