Deck 41: Automatic Transmissions and Transaxles

Question 1

All automatic transaxles use a simple planetary gearset.

Answer 1

False

Question 2

Lip seals are sometimes built into ball bearings to retain lubricants.

Answer 2

True

Question 3

A Ravigneaux planetary carrier contains both long and short planet pinions.

Answer 3

True

Question 4

When a sun gear is the input member and the planetary carrier is held, the ring (internal/annulus)gear will be driven at a forward overdrive speed.

Question 5

To boost transmission line pressure, throttle pressure is applied to the ______.

A)pressure regulator spool valve
B)pressure relief valve
C)modulator valve
D)governor valve

Question 6

Power transfer through a planetary gearset is only possible when two of the members are  held at rest, or if two of the members are locked together.

Question 7

Multiple disc clutches in an automatic transmission are engaged by spring tension and disengaged by hydraulic pressure.

Question 8

The valve body assembly is comprised of the valve body, separator plate, and transfer plate.

Question 9

A check ball is a simple hydraulic valve.

Question 10

A transmission band assembly is used to drive a planetary member.

Question 11

Overrunning clutches can ______.

A)hold a planetary gear member stationary
B)drive a planetary gear member
C)both A and B
D)neither A nor B

Question 12

A servo assembly converts mechanical force to hydraulic pressure.

Question 13

When the pressure regulator valve begins to operate, the line pressure first flows to the ______.

A)torque converter
B)forward clutch assembly
C)manual valve
D)governor assembly

Question 14

To achieve a slow forward overdrive in a simple planetary gearset, the ______.

A)sun gear must be the input member
B)ring (annulus)gear must be the input member
C)planetary carrier must be the input member
D)ring (annulus)gear must be held

Question 15

In addition to conventional snap rings, some are wave shaped and some are available in different thicknesses to adjust multiple-disc clutch pack clearance.

Question 16

Which of the following is NOT a component of the TCC?

A)damper assembly
B)piston plate
C)clutch friction plate
D)roller clutch

Question 17

In addition to the compound planetary gearsets, many automatic transmissions are fitted with an additional single planetary gearset to provide additional forward gear ratios.

Question 18

Whenever two members of a simple planetary gearset are locked together, the output will be direct drive.

Question 19

A Belleville-type clutch piston return spring can be used to multiply the force applied to the clutch.

Question 20

Hypoid final drive gear assemblies are normally found in vehicles with a longitudinally placed engine.

Question 21

Which is not a component of the torque converter?

A)impeller
B)rotor
C)stator
D)turbine

Question 22

The transmission cooler is normally located ______.

A)in the radiator
B)above the transmission
C)in the back of the transmission
D)in the transmission pan

Question 23

Hydraulic valve designs are being discussed. Technician A says spool valves have at least two lands that are connected by a thin stem. Technician B says check ball and poppet are valve designs. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 24

Single wrap and double wrap are types of ______.

A)servos
B)clutches
C)accumulator springs
D)bands

Question 25

Two technicians are discussing transmission oil pumps. Technician A says the oil pump is driven by the turbine shaft. Technician B say the pump is driven by the hub on the back of the converter housing. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 26

Technician A says a Simpson geartrain is an arrangement of two separate planetary gearsets with a common sun gear, two ring gears, and two planetary pinion carriers. Technician B says a Ravigneaux gearset has two sun gears, two sets of planet gears within a single carrier, and two ring gears. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 27

Technician A says torque converters are three-piece units that are bolted together and can be easily disassembled for cleaning and repairs. Technician B says the torque converter is completely filled with pressurized transmission fluid. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 28

Technician A says multiple-disc clutch packs are capable of holding or driving gearset members. Technician B says overrunning (one-way)clutches are capable only of holding gearset members. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 29

Butt-end, open-end, and hook-end are types of ______.

A)metal sealing rings
B)snap rings
C)O-rings
D)servo piston sealing rings

Question 30

Technician A says a purpose of a lockup piston clutch is to improve fuel economy. Technician B says a lockup piston clutch is designed with a damper assembly to transmit driving torque and absorb shock. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 31

Technician A says devices that control radial loads are called thrust washers. Technician B says devices that control axial loads are called bushings. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 32

Which of the following pressures increases as road speed increases?

A)line pressure
B)throttle pressure
C)governor pressure
D)converter pressure

Question 33

Which torque converter components is attached to the engine flywheel?

A)impeller
B)stator
C)turbine
D)input shaft

Question 34

The function of the throttle valve in the valve body is to ______.

A)prevent excessive transmission output shaft speed
B)prevent kickdown shift when vehicle speed exceeds 40 mph
C)produce a fluid pressure that is proportional to engine load
D)produce a fluid pressure that is proportional to road speed

Question 35

Two technicians are discussing transmission bearings. Technician A says thrust washers are used to support radial loads. Technician B says thrust washers are used to support axial loads. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 36

Two technicians are discussing band lining material. Technician A says the band lining material is a semimetallic compound. Technician B says the band lining material is paper based. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 37

A Belleville spring is commonly found inside a _____.

A)pressure regulator
B)multiple disc clutch
C)band servo
D)All the answers are correct.

Question 38

The ___________ is multiplier of torque converter fluid power.

A)impeller
B)stator
C)turbine
D)forward clutch

Question 39

When hydraulic pressure is applied to one side of a _____ servo, the band is applied. When hydraulic pressure is applied to the opposite side of the piston the band is released.

A)compound
B)two stage
C)dual acting
D)split phase

Question 40

Which torque converter components connects to the transmission input shaft?

A)impeller
B)stator
C)turbine
D)output shaft

Question 41

Technician A says the transmission oil pump is driven by the converter shell and continually delivers transmission fluid under pressure into the torque converter through a hollow shaft at the center axis of the converter assembly. Technician B says transmission fluid leaving the turbine is directed out of the torque converter to an external oil cooler and then to the transmission's oil sump or pan. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 42

The Ravigneaux gearset has ______.

A)a single compound sun gear
B)a single carrier with long and short planetary pinion gears
C)two ring gears
D)three ring gears

Question 43

Technician A says a simple planetary gearset can provide two reverse gear ratios. Technician B says a simple planetary gearset can provide two forward reduction ratios. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 44

_____ bearings are thrust washers fitted with roller bearings used to reduce endplay.

A)Thomaston
B)Lepelletier
C)Torrington
D)Belleville

Question 45

The overrunning clutch inside the torque converter is attached to the ______.

A)impeller
B)stator
C)turbine
D)carrier

Question 46

_____-type and roller overrunning clutches are used to hold or drive members of the planetary gearset in one direction and allow them to freewheel in the opposite direction.

A)Ratchet
B)Sprag
C)Pinion
D)all answers are correct

Question 47

Technician A says the names of the components inside an automatic transmission are based on their function; namely what gear are they used to control. Technician B says the names of the clutches, bands, and servos are based on their location in the transmission. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 48

In a simple planetary gearset, whenever the planetary carrier is held, the condition will be ______.

A)forward speed reduction
B)forward speed increase (overdrive)
C)direct drive
D)reverse

Question 49

Technician A says vortex flow is the flow of transmission fluid from the center to the outside edge and back. Technician B says rotary flow is the oil flow around the circumference of the torque converter. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 50

Technician A says if the sun and the ring gear are both driven [locked] and the carrier is the output, the condition is direct drive. Technician B says if the carrier and the sun are both driven and the ring gear is the output, the condition is direct drive. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 51

Simple planetary gearsets are being discussed. Technician A says any one of the three members can be used as the driving or input member. Technician B says the ring gear is always the driving or output member. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 52

Which of the following components is NOT part of a lockup torque converter?

A)damper assembly
B)clutch friction plate
C)piston plate
D)servo springs

Question 53

Technician A says the turbine shaft is splined to the turbine and transfers power from the torque converter to the transmission's main driveshaft. Technician B says the transmission oil pump is driven by the turbine shaft. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 54

On many hybrid vehicles the transmission uses _____ to drive and hold planetary gearset elements.

A)electric motors
B)electric solenoids
C)pneumatic servo motors
D)hydraulic motors

Question 55

If the sun gear and planetary carrier are both driven (locked together), the gear ratio will be ______.

A)maximum forward reduction
B)minimum forward reduction
C)direct drive
D)slow reverse

Question 56

A CVT transmission uses _____ to provide speed reduction and torque multiplication.

A)a planetary gearset
B)a belt and pulleys
C)helical external gears on parallel shafts
D)a hydraulic turbine with variable stator blades

Question 57

What manufacturer makes automatic transaxles that do not use planetary gears and are similar in construction and operation to manual transaxles?

A)Chrysler
B)Toyota and Lexus
C)Honda and Acura
D)Volkswagen and Audi

Question 58

Which of the following is NOT a type of rubber seal used in an automatic transmission?

A)O-ring
B)lip seal
C)square cut seal
D)counterbore seal

Question 59

A tapered roller bearing is designed to accept ______ loads.

A)radial
B)axial
C)both A and B
D)neither A nor B

Question 60

At coupling speed, the overrunning clutch in the torque converter is ______.

A)rotating forward
B)rotating backwards
C)stationary
D)rotating sideways

Question 61

A ____________________assembly converts hydraulic pressure into a mechanical force that applies a band to hold a drum stationary.

Question 62

There are two common designs of compound gear sets: the ____________________ gearset and the Ravigneaux gearset.

Question 63

Today's transmissions have at least one ____________________ gear to reduce fuel consumption, lower emission levels, and reduce noise while the vehicle is cruising.

Question 64

The ____________________ member of a simple planetary gearset is sometimes called the reaction member.

Question 65

If the roller in a bearing has a length to diameter ratio of 5:1 or more, the bearing is called a ____________________ bearing.

Question 66

A lockup torque converter eliminates the ____________________ percent slip that takes place between the impeller and turbine during the fluid coupling stage.

Question 67

A ____________________ gear train is an arrangement of two separate planetary gearsets with a common sun gear, two ring gears, and two planetary pinion carriers.

Question 68

In a planetary gearset, the ring gear is sometimes called the ____________________ gear.

Question 69

Overrunning (one-way)clutches can be either roller-type or ____________________type clutches.

Question 70

____________________ are the wide parts of the spool valve that ride on a thin film of oil in the valve bore of the valve body.

Question 71

________________ control the axial movement of rotating transmission components.

Question 72

Automatic transmissions use a fluid clutch known as a ____________________ to transfer engine torque from the engine to the transmission.

Question 73

Excessive pump pressure is controlled by the ____________________ valve.

Question 74

An automatic transmission or transaxle selects ____________________ according to engine speed, powertrain load, vehicle speed, and other operating factors.

Question 75

The ____________________ clutch located within the stator assembly allows the stator to rotate in one direction only.

Question 76

In a simple planetary gearset, when the planetary carrier is held, the gearset produces a ______ drive.

Question 77

Transmission gaskets are made of rubber, cork, paper, or ____________________.

Question 78

Which of the following is NOT a type of pump used in an automatic transmission?

A)gear type
B)centrifugal type
C)rotor type
D)vane type

Question 79

The function of automatic transmission fluid is to ______.

A)lubricate the shafts, bearings, and gears
B)cool the transmission parts
C)transmit hydraulic pressure
D)All the answers are correct.

Question 80

Technician A says Teflon seals are harder and wear the seal surface faster than metal seals. Technician B says scarf-cut Teflon seals require special tools for installation. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B