Exam 38: Manual Transmissions and Transaxles

Explain the role of shift rails and shift forks in the operation of transmissions and transaxles.

If the engine is running at 3,000 rpm and the wheels are spinning at 500 rpm the overall gear ratio is ___________________to one.

A shift rail and fork is used to control the movement of a synchronizer.

Self-shifting manual transmissions are being discussed. Technician A says these transmissions use planetary gearsets and torque converters like conventional automatic transmissions. Technician B says these transmissions are manual transmissions that shift gears using a computer-controlled actuator connected to the shift forks and a clutch actuator. Who is correct?

Transmission shafts are mounted ____________________ to one another.

In a five-speed manual transmission/transaxle, an idler gear is used for _____ gear.

A gear ratio of less than 1.0 indicates an overdrive condition.

Identify three electrical devices used with manual transmissions.

What determines whether a conventional transmission or transaxle is used?

Differential gearing is included in a transaxle.

Technician A says the speeds at which two meshed gears turn depend on the number of teeth on each gear. Technician B says if the driving gear has fewer teeth than the driven gear, the speed of the driven gear increases. Who is correct?

When an idler gear is placed between the driving and driven gear, the driven gear ______.

There can be no power output until one of the speed gears is locked to the ___________________.

Which of the following gear ratios generates the highest torque or power output?

A disadvantage of ____________________ gears is axial thrust.

The VSS [vehicle speed sensor] provides information for the ______.

Technician A says when a small gear drives a larger gear, output speed is decreased. Technician B says when a small gear drives a larger gear, output torque is decreased. Who is correct?

Technician A says spur gears have straight cut teeth. Technician B says helical gears have teeth cut at an angle. Who is correct?

A gear ratio of 4:1 is lower than a ratio of 2:1.

Technician A says helical cut gears have teeth cut at a 90-degree angle to the side of the gear. Technician B says helical gears run without creating gear whine. Who is correct?