Deck 9: Reaction and Friction Units

Question 1

Technician A says to check for internal fluid leaks, a technician can perform an air test. Technician B says servo action can be checked by performing an air test. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Answer 1

C

Question 2

Shift feel is affected by fluid type.

Answer 2

True

Question 3

Technician A says a dog clutch utilizes roller bearings held in place by springs to separate the inner and outer race of the clutch assembly. Technician B says one-way overrunning clutches can be either roller type or sprag type. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Answer 3

B

Question 4

​Technician A says a band apply pin may be selective. Technician B says most bands are not adjustable as routine maintenance. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 5

Shift feel is affected by power pulses.

Question 6

Technician A says a hydraulic piston assembly known as an accumulator helps the servo quickly apply the brake band. Technician B says to apply the brake band, a hydraulically operated piston assembly known as a servo is used. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 7

Technician A says to drive one member of the planetary gear set, a multiple disc clutch can be used. Technician B says to hold one member of the planetary gear set, a multiple disc clutch can be used. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 8

A servo is a hydraulically operated piston assembly used to apply a band.

Question 9

Technician A says the dog clutch is used on the nine- speed automatic from ZF. Technician B says the dog clutch is used to lock two components together through the use of a multiple- disc clutch. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 10

A drum is connected to a member of the planetary gear set.

Question 11

One-way overrunning clutches are purely mechanical devices.

Question 12

​Technician A says seals hold in the hydraulic pressure when the clutch pack is released. Technician B says in a typical pack, the apply piston at the rear of the drum is held in place by the return springs and a spring retainer secured by a snap ring. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 13

A servo expands a band when hydraulic pressure pushes against the piston.

Question 14

A band can be used to drive a planetary member.

Question 15

Some apply circuits use an accumulator to slow down the application of the holding device.

Question 16

Technician A says if a friction disc looks burned but there is sufficient friction material remaining, it can be serviced. Technician B says if the steel plates in a clutch disc assembly are worn flat, they should be replaced. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 17

Technician A says an internal leak at the servo is indicated if the fluid pressure increases during servo application. Technician B says a clogged oil filter or low oil pump output is indicated by high fluid pressure. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 18

​Technician A says transmissions use compound planetary gears that are controlled by friction and reaction devices. Technician B says clutch and brake application charts are a must during diagnosis and transmission overhaul. Who is correct?

A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Question 19

The forward clutch normally contains a Belleville-type return spring.

Question 20

Some reaction units are applied by hydraulically operated piston assembly.

Question 21

A(n)____________________ is a heavy metal plate that provides a clamping surface for the clutch plates.

Question 22

A(n)____________________ is the pivot point for lever.

Question 23

Technician A says that the springs used in accumulator and servo assemblies have a specified tension. Technician B says that improper spring tension will affect shift quality. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 24

​When multiple-disc packs lock two members of a planetary gearset together, it is a _______________device.

Question 25

____________________ is an operational condition that results from using the engine to brake while decelerating.

Question 26

____________________ is part of an adaptive learning strategy that is an important aid when diagnosing a slippage problem. This data can also be used as an indication of the amount of friction material wear.

Question 27

____________________ are smooth metal rings that do not have friction material on them.

Question 28

Define a servo assembly and its function.

Question 29

A(n)____________________ provides strong holding power and has band segments.

Question 30

____________________ is a linkage that acts on both ends of a band to tighten it around the drum.

Question 31

​What determines shift feel in a clutch-to-clutch shifting transmission?

Question 32

When a multiple-disc pack is used as a _______________, there is no need for the check ball.  Since the unit does not rotate, centrifugal force will have no effect on the fluid behind the piston.

Question 33

​A _______________ and its _______________ are always used as holding devices and are never used to drive a member of the gearset.

Question 34

A(n)____________________ is a band that is split with overlapping ends.

Question 35

Technician A says adjusting screws are found on some bands. Technician B says locknuts and adjusting screws are found on the outside of the transmission case on all bands. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 36

​List the advantages to using a dog clutch.

Question 37

​Name the different types of bands.

Question 38

A(n)____________________ improves clamping force and acts as a return spring.

Question 39

List the  disadvantages to using a dog clutch.​

Question 40

​What is CVI (clutch volume indexing)?