Question 1

Transmission Control Unit (TCU)

Accepted Answer

Controls the shifting of gears in an automatic transmission.

Question 2

Transfer Case

Accepted Answer

A device that splits engine power between the front and rear axles in a four-wheel-drive vehicle.

Question 3

Torque Converter

Accepted Answer

A fluid coupling that transfers power from the engine to the transmission.

Question 4

Limited Slip Differential (LSD)

Accepted Answer

A differential that limits the amount of power sent to the wheel with less traction.

Question 5

Drive Shaft

Accepted Answer

Transmits torque from the transmission to the drive axles.

Question 6

Power Take-Off (PTO)

Accepted Answer

A device that transfers power from the vehicle's engine to an auxiliary equipment.

Question 7

Clutch

Accepted Answer

A device that engages and disengages the engine from the transmission.

Question 8

Manual Transmission

Accepted Answer

A type of transmission that requires the driver to manually shift gears.

Question 9

Automatic Transmission

Accepted Answer

A type of transmission that shifts gears automatically.

Question 10

Differential

Accepted Answer

A device that splits engine torque between the two drive wheels.

Question 11

Axle Shaft

Accepted Answer

Transmits torque from the differential to the drive wheels.

Question 12

Transaxle

Accepted Answer

A combined transmission and differential assembly used in front-wheel-drive vehicles.

Question 13

Gear Ratio

Accepted Answer

The ratio between the number of teeth on two meshing gears.

Question 14

Synchronizer

Accepted Answer

A device in a manual transmission that matches the rotational speeds of two gears for smooth shifting.

Question 15

Overdrive

Accepted Answer

A gear ratio that allows the engine to operate at a lower speed for improved fuel efficiency.

Question 16

Shift Fork

Accepted Answer

A component that moves the synchronizer to engage different gears.

Question 17

Clutch Pedal

Accepted Answer

The pedal used to engage and disengage the clutch.

Question 18

Propeller Shaft

Accepted Answer

Another term for the drive shaft.

Question 19

Rear Differential

Accepted Answer

The differential located at the rear axle of a vehicle.

Question 20

Four-Wheel Drive (4WD)

Accepted Answer

A drivetrain configuration that powers all four wheels simultaneously.

Question 21

Front Differential

Accepted Answer

The differential located at the front axle of a four-wheel-drive vehicle.

Question 22

Powertrain

Accepted Answer

The components that generate and transmit power to the wheels.

Question 23

Torque Bias Ratio (TBR)

Accepted Answer

A measure of the torque split between the front and rear axles in an all-wheel-drive system.

Question 24

Hydraulic Torque Converter

Accepted Answer

A type of torque converter that uses hydraulic fluid to transfer power.

Question 25

Electronic Control Module (ECM)

Accepted Answer

The computer that controls various aspects of the vehicle's drivetrain.

Question 26

Half Shaft

Accepted Answer

A shaft that transmits torque from the differential to the drive wheels in independent suspension systems.

Question 27

Torque Vectoring

Accepted Answer

A technology that varies the torque distribution between the left and right wheels for improved handling.

Question 28

Center Differential

Accepted Answer

The differential located at the center of a full-time all-wheel-drive system.

Question 29

Driveline

Accepted Answer

The components that transmit power from the transmission to the wheels.

Question 30

Dual-Range Transfer Case

Accepted Answer

A transfer case that provides two sets of gear ratios for increased off-road capability.

Question 31

Hypoid Gear

Accepted Answer

A type of gear used in differentials that allows the drive shaft to be located higher or lower than the driven shaft.

Question 32

Planetary Gear Set

Accepted Answer

A gear set used in automatic transmissions to achieve different gear ratios.

Question 33

Shift Solenoid

Accepted Answer

An electro-hydraulic device that controls the engagement of gears in an automatic transmission.

Question 34

Propeller Shaft Yoke

Accepted Answer

The component that connects the drive shaft to the transmission or differential.

Question 35

Locking Differential

Accepted Answer

A differential that can be locked to provide equal power to both drive wheels.

Question 36

Gear Train

Accepted Answer

A series of gears that transmit power from the input shaft to the output shaft.

Question 37

Axle Housing

Accepted Answer

The casing that contains the differential and axle shafts.

Question 38

Synchromesh

Accepted Answer

A type of manual transmission that uses synchronizers to match the rotational speeds of gears for smoother shifting.

Question 39

Shift Pattern

Accepted Answer

The specific order and configuration of gears in a manual transmission.

Question 40

Constant Velocity (CV) Joint

Accepted Answer

A joint that allows the drive shaft to transmit power at varying angles while maintaining a constant speed.

Question 41

Differential Lock

Accepted Answer

A mechanism that locks the differential to ensure equal power distribution to both drive wheels.

Question 42

Input Shaft

Accepted Answer

The shaft that receives power from the engine and transfers it to the transmission.

Question 43

Output Shaft

Accepted Answer

The shaft that transmits power from the transmission to the drive wheels.

ASE MIL3 Drive Train Flashcards