CH 32 Week 3

A transmission is needed in the conventional automobile for all of these reasons EXCEPT:

• the automobile must operate over a wide range of speeds.

• the drive wheels must deliver sufficient torque to accelerate.

• engine rpm varies widely compared to a relatively narrow vehicle speed.

• engine maximum torque is produced within a narrow rpm range.

Technician A says that a broken detent spring can cause the transmission to pop out of gear. Technician B says that a broken interlock pin can cause the transmission to go into two gears at the same time? Who is correct?

• Technician A

• Technician B

• Both A and B

• Neither A nor B

A relatively large twisting force must be applied to the wheels to accelerate the vehicle from a stop.

• True

• False

Each manual transmission selector shift rail has a detent mechanism, usually in the form of a spring-loaded _______ ball held in the casing.

• Cast-iron

• Aluminum

• Steel

• None of the above

Single-row, deep-groove ball bearings normally support the ______ in conventional rear-wheel drive manual transmissions.

• Input shaft and reversing shaft

• Main shaft and input shaft

• Either A or B

• Neither A nor B

The flutes or swirls found in hydrodynamic seals create a pumping action as the input or output shaft rotates, causing any fluid at the sealing edge to be drawn back inside the casing.

• True

• False

________ can be of the caged type, or they can be a loose number assembled to operate directly on a hardened gear or shaft.

• Thrust washers

• Needle roller bearings

• Thrust bearings

• Selective thickness shims

All of the following statements are true EXCEPT:

• pocket bearings sit in the pocket of the input shaft.

• pocket bearings support the front of the input shaft.

• pocket bearings are generally not used in rear-wheel drive transmissions.

• pocket bearings are primarily used on countershafts.

A manual transmission in a rear-wheel-drive vehicle has all of these shafts EXCEPT a(n):

• input shaft.

• balance shaft.

• main shaft.

• countershaft.

The dual-clutch manual transaxle uses electric solenoid valves to ______ engage and disengage each clutch.

• Hydraulically

• Mechanically

• Either A or B

• Neither A nor B