Deck 3: General Theories of Operation

Question 1

All transmissions have a throttle valve linkage that controls forced downshifts.

Answer 1

False

Question 2

Fluid clutches and torque converters are one and the same.

Answer 2

False

Question 3

Driving a vehicle with a very low level of ATF is not harmful to the transmission.

Answer 3

False

Question 4

All automatic transmissions use some sort of planetary gear set.

Question 5

A change in tire diameter may affect transmission operation.

Question 6

The Lepelletier design of planetary gear sets are used in some six- and seven-speed transmissions.

Question 7

​ A scan tool is needed to check fluid level in transmissions without a dipstick.

Question 8

A reduction ratio results in decreased torque with a reduced speed.

Question 9

The speedometer drive assembly is geared to the input shaft.

Question 10

Technician A says the manual shift valve, which is located in the valve body, moves indirectly to the movement of the throttle pedal. Technician B says the manual shift valve in the transmission is moved by the gear selector lever and linkage. Who is correct?

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

Question 11

It is not important to use the recommended ATF in the transmission.

Question 12

Overdrive improves fuel economy but increases engine noise.

Question 13

An accumulator helps the servo operate the clutch smoothly.

Question 14

A slipping forward clutch may cause a delay in the shift of all forward gears.

Question 15

In order to properly diagnose a transmission complaint, it is essential that you gather as much information from the customer as possible.

Question 16

A clunking noise during acceleration may be the result of a worn CV joint.

Question 17

Some newer designs of transmissions and transaxles may be equipped with two fluid filters.

Question 18

Engine performance can affect torque convertor clutch operation.

Question 19

A compound planetary gear set contains two complete planetary gear sets.

Question 20

Technician A says to reduce the chance of slipping under heavy load, increasing the pressure will hold the planetary control units tightly. Technician B says a throttle cable or electronics are used to sense engine load in a transmission or transaxle not equipped with a vacuum modulator. Who is correct?

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

Question 21

Technician A says leaking hydraulic circuits or sticking spool valves in the valve body can result in delayed shifts or slippage. Technician B says worn planetary gear set members can cause delayed shifting. Who is correct?

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

Question 22

Technician A says electrical switches are used to open and close electrical circuits. Technician B says electrical switches are used to control the operation of other devices. Who is correct?

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

Question 23

An automatic transmission or transaxle receives engine power through which part?

A)A planetary gear set
B)A valve body
C)An input shaft
D)A torque converter

Question 24

Which of the following types of pump is not used in transmissions or transaxles?

A)Vane-type
B)Rotor-type
C)Gear-type
D)Screw-type

Question 25

Which of the following is true of an impeller?

A)It allows for torque multiplication.
B)It is splined to the input shaft.
C)It is driven by the converter cover.
D)It supplies pressures to be used within the valve body.

Question 26

Technician A says identification numbers identify only the manufacturer and assembly date of the transmission or transaxle. Technician B says the shape of the oil pan is the only positive way to identify the exact design of the transmission or transaxle. Who is correct?

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

Question 27

Technician A says that any electronic problems, as indicated by fault codes retrieved by a scan tool, should be corrected before continuing with the diagnosis. Technician B says that the electronic problems will be corrected when the transmission repair is completed. Who is correct?

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

Question 28

Which of the following is true of an overdrive gear?

A)It occurs when speeds decrease to 30 mph.
B)It is used when climbing hills.
C)It provides release of the converter lock-up clutch.
D)It aids with fuel economy.

Question 29

Technician A says planetary gears provide different gear ratios needed to move the vehicle. Technician B says automatic transmissions and transaxles must have at least three planetary gear sets. Who is correct?

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

Question 30

Technician A says it is necessary to identify any and all non-factory installed electrical accessories when inspecting a vehicle. Technician B says non-factory installed electrical accessories may cause the system to not operate properly. Who is correct?

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

Question 31

From a single planetary gear set, there are two possible reverse speeds and how many possible forward speeds?

A)Four
B)Three
C)One
D)Five

Question 32

Technician A says the impeller is driven by the force of the fluid from the turbine and is splined to the input shaft. Technician B says the torque converter's impeller is driven by the converter cover, and its rear hub drives the transmission's or transaxle's oil pump. Who is correct?

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

Question 33

Technician A says the torque converter's stator indirectly drives the oil pump. Technician B says the pump drive hub of the torque converter drives the oil pump. Who is correct?

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

Question 34

Which of the following does not sense engine vacuum?

A)Manifold absolute pressure sensor
B)Throttle position sensor
C)Pressure regulator valve
D)B or C

Question 35

Which of the following is true of the VIN?

A)It will be found on a sticker.
B)It will have barcoded information.
C)It will include build date, part number, and exact model.
D)All of the above
E)None of the above

Question 36

Technician A says the valve body senses and responds to engine and vehicle load. Technician B says valve bodies house many different valves that are moved by the gear selector. Who is correct?

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

Question 37

Which of the following is true of solenoids?

A)They convert electrical energy to mechanical energy.
B)They control the flow of hydraulic fluid.
C)They control power flow.
D)They control shift points.

Question 38

Technician A says a one-way clutch in the stator allows it to remain stationary when it is not needed. Technician B says the flow of fluid from the impeller to the turbine is directed with the aid of the stator. Who is correct?

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

Question 39

Technician A says that the temperature of the transmission is not important when checking ATF levels. Technician B says that all transmissions and transaxles have a dipstick. Who is correct?

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

Question 40

Technician A says when there is a delay or slip as the transmission shifts into any forward gear, a slipping rear clutch is indicated. Technician B says a slipping front or forward clutch is indicated if the shift for all forward gears is delayed. Who is correct?

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

Question 41

​Technician A says low engine vacuum will cause the MAP sensor to sense a load condition when it actually is not present, causing delayed and harsh shifts. Technician B says poor engine performance can cause delayed shifts through the action of the TP sensor indicating full throttle.
Who is correct?

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

Question 42

A(n)____________________ detects intake manifold absolute pressure.

Question 43

Which of the following is not true of a modulated torque convertor clutch?

A)It allows for partial lock-up.
B)It allows for smooth engagement.
C)It allows for some slippage.
D)It is not used to help control transmission temperatures.

Question 44

​Technician A says the use of throttle actuator control means the throttle is controlled by the ECM/TCM. Technician B says the ECM/TCM can increase the throttle opening with throttle actuator control to make the shift feel softer.
Who is correct?

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

Question 45

The ____________________ controls shift quality.

Question 46

​Pressure testing reveals low pressure in all gears. Technician A says using a reverse stall test forces the pump output to maximum pressure.
Technician B says a reverse stall test will determine whether the pump output is low.
Who is correct?

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

Question 47

The ____________________ allows the vehicle to start in neutral or park.

Question 48

A(n)____________________ is when two or more planetary gear sets are used.

Question 49

A(n)____________________ monitors the speed of the vehicle.

Question 50

A(n)____________________ tells the computer what gear the transmission or transaxle should be in.

Question 51

____________________ regulate and direct fluid flow using a steel or rubber ball.

Question 52

A(n)____________________ is a diagnostic sequence.

Question 53

Technician A says that some hybrid vehicles rely on one simple planetary gear set for their transmissions. Technician B says that a hybrid transaxle may contain two motor/generators. Who is correct?

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

Question 54

____________________ is air mixed with fluid.

Question 55

​While discussing a pressure test: Technician A says to begin this test by checking line pressure.
Technician B says the test can be run with a scan tool and a pressure gauge on transmissions that use an EPC solenoid. 
Who is correct?

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

Question 56

Technician A says that some newer transmission designs incorporate as many as eight forward speeds. Technician B says the main reason for an overdrive gear is to increase vehicle performance. Who is correct?

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

Question 57

____________________ is fluid breakdown.

Question 58

​Technician A says electronic control of the line pressure (pump output)controlled by the EPC solenoid allows the transmission control module (TCM)to vary the pressure used to apply the clutches. Technician B says that the electronic pressure-regulator valve can adjust pressure for one gear shift. Who is correct?

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

Question 59

Technician A says that metal shavings collected on permanent magnet-style speed sensors may indicate an internal transmission problem. Technician B says that if the fluid is clean and only contains a small amount of residue, the transmission problem is most likely caused by something external to the transmission. Who is correct?

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

Question 60

Most late-model transmissions use an ____________________  to regulate transmission or transaxle fluid line pressure.

Question 61

The ____________________ is a spring steel cone-shaped plate.

Question 62

A(n)____________________ holds components of the planetary gear set.

Question 63

The ____________________ regulates and directs fluid flow using a poppet.

Question 64

The ____________________ delivers power from a transmission or transaxle.

Question 65

A(n)____________________ converts hydraulic pressure to mechanical movement.

Question 66

____________________ direct pressurized fluid to apply devices.

Question 67

The ____________________ identifies transmissions and transaxles.

Question 68

The ____________________ uses an inner and outer rotor to generate oil pressure.

Question 69

The ____________________ is driven by the converter cover.

Question 70

The ____________________ directs fluid flow from the turbine to the impeller.

Question 71

____________________ detects the percentage of throttle plate opening.

Question 72

A(n)____________________ is a small opening or restriction.

Question 73

____________________ verifies a weak or worn oil pump.

Question 74

The ____________________ directly controls mainline pressure.

Question 75

The ____________________ seals and allows fluid flow through the valve body.

Question 76

A(n)____________________ regulates fluid pressure in response to a change in
engine load.

Question 77

A(n)____________________ directs hydraulic pressure through specific passages.

Question 78

____________________ is the transition between shift points.

Question 79

The ____________________ carries the driving gear.

Question 80

A(n)____________________ uses two gears to generate oil pressure.