Which statements about the drivetrain and differential are correct?

Which statements about the drivetrain and differential are correct?

• A. The drivetrain must provide a means of connecting and disconnecting the engine to the drive wheels.
• B. The differential assembly allows the drive wheels to rotate at different speeds when turning.
• C. Both statements are true.
• D. Neither statement is true.

Answer: (C)

In a vehicle, the drivetrain’s job is to transfer engine power to the drive wheels and to include the means to connect and disconnect that power as needed. This includes components like the clutch or torque converter, the transmission, driveshafts, and final drive, which work together to engage gears and also allow power to be disengaged when stopping or coasting. The differential's role is to let the two drive wheels rotate at different speeds, which is necessary when turning because the outer wheel travels a longer path than the inner wheel. Without this ability, turning would cause tire scrubbing and drivetrain binding. Because both statements describe real, fundamental functions of the drivetrain and the differential, they are both true.

In a vehicle, the drivetrain’s job is to transfer engine power to the drive wheels and to include the means to connect and disconnect that power as needed. This includes components like the clutch or torque converter, the transmission, driveshafts, and final drive, which work together to engage gears and also allow power to be disengaged when stopping or coasting. The differential's role is to let the two drive wheels rotate at different speeds, which is necessary when turning because the outer wheel travels a longer path than the inner wheel. Without this ability, turning would cause tire scrubbing and drivetrain binding. Because both statements describe real, fundamental functions of the drivetrain and the differential, they are both true.