starter motor

What is the primary purpose of an engine starter motor?

• To generate electricity for the vehicle's systems.

• To provide torque to the crankshaft to start the engine.

• To regulate the engine's temperature.

• To control the vehicle's braking system.

What is the role of the solenoid in the starter motor's power supply circuit?

• It directly powers the motor with high current.

• It acts as an electromagnet that requires a small current to get energized and connects the battery to the motor.

• It stores electrical energy for later use.

• It converts mechanical energy into electrical energy.

Why is a solenoid and contactor switch used to connect the battery to the motor instead of a direct connection?

• To reduce the overall weight of the starter motor.

• To simplify the wiring complexity.

• Because the motor demands a heavy current for operation, requiring a large switch and thick wires which is inconvenient.

• To increase the voltage supplied to the motor.

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Which components are part of a planetary gear set in a starter motor?

• Crankshaft, flywheel, and pinion.

• Sun gear, ring gear, carrier, and planet gears.

• Rotor, stator, and brushes.

• Plunger, contactor, and ignition switch.

What is the function of the one-way clutch in a starter motor?

• To increase the torque output of the motor.

• To ensure the pinion always remains engaged with the flywheel.

• To prevent back drive of the motor by the engine's flywheel, which could cause damage.

• To regulate the speed of the motor.