Understanding Automatic Transmissions

What is the primary function of a torque converter?

• To cool the engine during operation.

• To provide electrical power to the vehicle.

• To increase engine horsepower directly.

• To transfer engine power to the transmission and allow for smooth acceleration.

Which component is responsible for changing gear ratios in an automatic transmission?

• Transmission Control Module (TCM)

• Gear Shift Lever

• Clutch Plate

• Torque Converter

What type of fluid is typically used in automatic transmissions?

• Automatic transmission fluid (ATF)

• Engine oil

• Brake fluid

• Coolant

How does fluid dynamics affect the operation of an automatic transmission?

• Fluid dynamics only affects the engine's performance.

• Fluid dynamics is irrelevant to power transfer in transmissions.

• Fluid dynamics has no impact on gear shifting.

• Fluid dynamics affects the operation of an automatic transmission by influencing fluid flow, pressure, and temperature, which are essential for effective gear shifting and power transfer.

What is the purpose of the transmission control module (TCM)?

• The purpose of the transmission control module (TCM) is to manage and control the vehicle's transmission system.

• To manage the vehicle's electrical systems.

• To control the vehicle's braking system.

• To increase the vehicle's fuel efficiency.

Which gear ratio provides more torque to the wheels?

• Higher gear ratios provide more torque to the wheels.

• Medium gear ratios provide the most torque to the wheels.

• All gear ratios provide equal torque to the wheels.

• Lower gear ratios provide more torque to the wheels.

What maintenance procedure is essential for automatic transmission longevity?

• Ignoring warning lights

• Regular transmission fluid changes

• Using regular motor oil

• Skipping fluid checks

What diagnostic technique is used to identify transmission issues?

• Engine compression test

• Visual inspection of the transmission

• OBD-II scanning

• Fluid level check

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

• The valve body filters out impurities from the transmission fluid.

• The valve body directs hydraulic fluid to control gear shifts in an automatic transmission.

• The valve body serves as a coolant reservoir for the transmission.

• The valve body increases engine power during acceleration.

How does a torque converter differ from a clutch?

• A torque converter is used only in manual transmissions.

• A torque converter uses fluid for power transfer and automatic shifting, while a clutch is a mechanical device for manual engagement.

• A clutch uses fluid for power transfer and automatic shifting.

• A torque converter is a type of brake system.