The only path of power out of the transmission is through the rear ______________.

The only path of power out of the transmission is through the rear ______________.

• A. Planetary set
• B. Sun gear
• C. Planetary carrier
• D. Ring gear

Answer: (C)

In a planetary gear set, power transfer depends on which parts are driven and which are held. The carrier is the part that holds the planet gears and is connected to the output shaft, so it serves as the path through which torque leaves the gear train to drive the wheels. The sun gear and ring gear can be driven or held to produce different gear ratios, but they’re not the usual exit path for power in this setup. So the rear planetary carrier is the component through which power exits the transmission.

In a planetary gear set, power transfer depends on which parts are driven and which are held. The carrier is the part that holds the planet gears and is connected to the output shaft, so it serves as the path through which torque leaves the gear train to drive the wheels. The sun gear and ring gear can be driven or held to produce different gear ratios, but they’re not the usual exit path for power in this setup. So the rear planetary carrier is the component through which power exits the transmission.