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WorksheetsSistem Pengisian Sepeda Motor
Total questions: 20
Worksheet time: 10mins
What is the main component in the motorcycle charging system that functions to convert mechanical energy into electrical energy?
Battery
Regulator
Alternator
CDI
What is the main function of the regulator/rectifier in the charging system?
Convert AC to DC and stabilize voltage
Store electrical energy
Convert electrical energy into mechanical energy
Regulate ignition timing
What type of electrical current is produced by the alternator before regulation?
Direct Current (DC)
Alternating Current (AC)
Mixed Current
Does not produce current
What will happen if the rectifier in the charging system is damaged?
The battery voltage will always be stable
The battery will not charge or will overcharge
The main light will become brighter
The engine cannot be started
Why is it important to ensure the battery charging voltage is within the range of 13V-15V?
To speed up battery charging
Prevent overcharge or undercharge of the battery
Ensure the alternator works optimally
Save fuel consumption
What is the consequence if the cable connection in the charging system is loose or disconnected?
The charging system will function normally
The battery will charge faster
The battery will not charge properly or at all
The charging indicator light will go out
How can you simply check if the charging system is functioning properly?
Measure the battery voltage when the engine is off and running
Check the color of the cables on the alternator
Replace the rectifier periodically
Turn on all lights and observe their brightness
A mechanic measures the output voltage from the alternator and gets a result of 11V while the engine is running. What should be the next step?
Replace the battery with a new one
Check and replace the rectifier
Check the cable connections and sockets in the charging system
Replace the alternator
When checking the charging voltage on the battery, the measurement shows 16V. What could be the cause?
The alternator produces too low voltage
The rectifier is not functioning properly
The battery has internal damage
The charging cable is disconnected
If the charging indicator light on the dashboard stays on continuously while the engine is running, what should be the first step taken?
Replace the battery
Check and ensure the cable connections in the charging system
Replace the indicator light
Replace the rectifier
A technician wants to check if the rectifier is functioning properly. What tool should be used?
Ammeter
Voltmeter
Ohmmeter
Oscilloscope
After replacing the rectifier, the charging voltage remains abnormal. What should be the next step?
Replace the battery
Recheck the cable connections and alternator
Replace all components of the charging system
Replace the main fuse
If the battery often experiences overcharge, which component is most likely to be problematic?
Alternator
Rectifier
The battery itself
Charging cable
How to check if the alternator produces sufficient electrical current?
Measure the output voltage of the alternator while the engine is running
Check the physical condition of the alternator
Replace the rectifier and observe changes
Measure the resistance of the charging cable
What could be the cause if the battery voltage is measured at 12V and does not increase while the engine is running?
The alternator is not generating electricity
The rectifier is damaged
The charging cable is disconnected
All answers are correct
A student measures the voltage at the battery terminal while the engine is running and gets a result of 14.5V. What is the conclusion from this measurement?
The charging system is functioning properly
The battery is overcharging
The rectifier is not functioning
The alternator is damaged
A mechanic finds that the battery charging voltage is 17V while the engine is running. After checking the rectifier and alternator, both are functioning normally. What could be another cause of this problem?
Poor ground cable
An old or damaged battery
A blown fuse
Excessive electrical load
After replacing the rectifier, the charging voltage remains low. Further inspection shows that the alternator stator has a resistance higher than specifications. What action should be taken?
Replace the alternator stator
Replace the battery
Inspect and repair the charging cable
Replace the alternator rotor
A technician finds that the charging system works well when the engine is idle, but the charging voltage drops drastically when the engine speed increases. Which component is likely to have a problem?
Regulator/Rectifier
Alternator rotor
Battery
Main fuse
After inspecting the charging system, it is found that the alternator output voltage varies unstably. What could be the main cause of this condition?
Voltage regulator is not functioning properly
Stator windings are partially damaged
Charging cable is corroded or partially broken
All answers are correct
