Exam 38: Manual Transmissions and Transaxles

Transmissions use prime gear sets to even out wear on the teeth.

Differential gearing is included in a transaxle.

Most transaxles require a pilot bearing in the flywheel to support the input shaft.

Final drive ratios are being discussed. Technician A says that the final drive ratio is the gear ratio of the ring gear and pinion gear in a rear axle. Technician B says the final drive ratio is the gear ratio of the pinion gear and ring gear in a transaxle. Who is correct?

Technician A says the main gears are also called speed gears. Technician B says speed gears freewheel around the mainshaft until they are locked to it by the engagement of their shift synchronizer unit. Who is correct?

Which of the following is not part of a synchronizer assembly?

Using multiple cone synchronizer assemblies reduces the size and weight of the transmission.

Identify three electrical devices used with manual transmissions.

The synchronizer ____________________ is precisely machined to slide onto the clutch hub smoothly.

Why are overdrive gear ratios used in transmissions?

Gear ratios are being discussed. Technician A says higher gear ratios allow for higher vehicle speeds and more torque. Technician B says lower gear ratios provide less torque and reduce vehicle speed. Who is correct?

The size and number of teeth on a reverse idler gear determine the gear ratio for reverse.

The countershaft assembly is often referred to as the ___________________ gear.

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

What is the function of a synchronizer?

A(n)___________________ transmission uses a mechanism of rings and clutches to bring rotating shafts and gears to the same speed before shifts occur.

All gear changes pass through the ____________________ position.

When the 1-2 shift rail is moved into first gear, the 3-4 and 5-R shift rails are prevented from moving by the ______.

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

A disadvantage of ____________________ gears is axial thrust.