Automotive and Mechanics Transmission & Drivetrain

Question 1

What is the purpose of a torque converter in an automatic transmission?

Accepted Answer

Multiply engine torque and allow the engine to idle while the vehicle is stopped

Answer

Shift gears electronically

Answer

Reduce transmission fluid temperature

Answer

Lock the differential

Question 2

What does the torque converter clutch (TCC) lockup do?

Accepted Answer

Creates a direct mechanical connection between engine and transmission to improve fuel efficiency

Answer

Prevents torque multiplication

Answer

Disengages the transmission at highway speeds

Answer

Controls line pressure

Question 3

Which component in a manual transmission synchronizes gear speeds before engagement?

Accepted Answer

Synchronizer (synchro ring)

Answer

Shift fork

Answer

Countershaft gear

Answer

Pilot bearing

Question 4

What causes a manual transmission to 'pop out of gear'?

Accepted Answer

Worn detent springs or shift forks allowing the collar to back off under load

Answer

Worn synchronizers

Answer

Low transmission fluid

Answer

Clutch slippage

Question 5

What type of differential allows wheels to rotate at different speeds while cornering?

Accepted Answer

Open differential

Answer

Locked differential

Answer

Spool

Answer

Welded differential

Question 6

What is the function of the clutch pressure plate?

Accepted Answer

Apply clamping force to the clutch disc against the flywheel

Answer

Store clutch fluid

Answer

Guide the clutch fork

Answer

Balance the flywheel