Automatci gearbox operation

When did automatic transmissions first appear?

• 1930s

• 1950s

• 1920s

• 1940s

What is the main function of the torque converter in an automatic transmission?

• To act as a fluid coupling for torque transfer

• To control the vehicle's speed

• To increase engine power

• To cool the engine

What is the role of the valve body in an automatic transmission?

• To increase vehicle speed

• To cool the transmission

• To control fluid flow and gear selection

• To generate engine power

How does a planetary gear set change gear ratios?

• By adjusting the tire pressure

• By increasing fuel efficiency

• By locking and holding different components

• By changing the engine speed

What mechanism prevents vehicle movement in an automatic transmission when parked?

• Gear shift lever

• Park pawl mechanism

• Handbrake

• Engine compression