How Automatic Gearboxes work video with Questions

What are the main components of a planetary gear set?

• Sun gear, planet gear, and ring gear

• Sun gear, planet carrier, and ring gear

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

• Sun gear, planet gear, and carrier

What happens to the output speed when the ring and sun gears rotate at the same speed in a planetary gear set?

• The output speed decreases

• The output speed increases

• The output speed equals the input speed

• The output rotation reverses

What is the primary function of clutch packs in an automatic transmission?

• To cool the transmission fluid

• To transmit power by locking components

• To lubricate the gears

• To filter impurities from the fluid

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What is a key condition for achieving reverse gear in an automatic transmission's planetary gear set?

• The sun gear and ring gear rotate at the same speed

• The planet carrier is stationary

• The ring gear rotates faster than the sun gear

• The input shaft is disconnected