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Questions and Answers
Where is each alternator located on the engine?
Where is each alternator located on the engine?
- Rear lower left side
- Front lower right side (correct)
- Rear upper right side
- Front upper left side
What is the purpose of the diodes in the alternator?
What is the purpose of the diodes in the alternator?
- To cool down the alternator
- To increase the voltage output
- To regulate fuel flow in the engine
- To convert alternating current to direct current (correct)
What can easily damage the diodes in the alternator?
What can easily damage the diodes in the alternator?
- Excessive heat from the engine
- Current flow being reversed (correct)
- Low voltage operation
- Physical impact during installation
What component automatically regulates alternator field current?
What component automatically regulates alternator field current?
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What happens when the alternator's ON-OFF switch is selected ON?
What happens when the alternator's ON-OFF switch is selected ON?
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Study Notes
Alternator Location and Drive
- Alternators are positioned on the front lower right side of the engine.
- They are driven by a belt connected to the engine crankshaft.
Alternator Function and Current Conversion
- Alternators produce alternating current (AC).
- Diodes within the alternator convert AC to direct current (DC).
- Diodes are solid state devices, prone to damage if current flows in reverse.
Alternator System Control
- Each alternator system has an independent ON-OFF switch.
- A solid state voltage regulator automatically regulates alternator field current.
- When an alternator is switched ON, its positive output is routed through individual shunts to the main tie bus.
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