Deck 41: Automatic Transmissions and Transaxles

Question 1

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.

Answer 1

False

Question 2

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

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

Answer 2

C

Question 3

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

Answer 3

A

Question 4

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 5

A check ball is a simple hydraulic valve.

Question 6

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 7

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 8

All automatic transaxles use a simple planetary gearset.

Question 9

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

Question 10

A servo assembly converts mechanical force to hydraulic pressure.

Question 11

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

Question 12

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

Question 13

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

Question 14

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

Question 15

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

A) reverse
B) direct drive
C) both "reverse" and "direct drive"
D) neither "reverse" nor "direct drive"

Question 16

Overrunning clutches are capable of ______.

A) holding a planetary gear member stationary
B) driving a planetary gear member
C) both "holding a planetary gear member stationary" and "driving a planetary gear member"
D) neither "holding a planetary gear member stationary" nor "driving a planetary gear member"

Question 17

A Belleville-type clutch piston return spring can be used to multiply the force applied to the clutch in addition to releasing the clutch when hydraulic pressure is removed.

Question 18

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

Question 19

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

Question 20

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 21

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 22

Single wrap and double wrap are types of ______.

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

Question 23

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 is above 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 24

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 25

Which of the following torque converter components connects to the transmission input shaft?

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

Question 26

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 27

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 28

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 29

All the following are components of the torque converter EXCEPT:

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

Question 30

Which of the following pressures increases as road speed increases?

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

Question 31

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 32

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 33

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 34

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 35

Which of the following torque converter components is attached to the engine flywheel?

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

Question 36

The multiplier of torque converter fluid power is the ______.

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

Question 37

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 38

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 39

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 40

A Belleville spring is commonly found inside a _____.

A) pressure regulator
B) multiple disc clutch
C) band servo
D) all answers are correct

Question 41

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

A) rotating forward
B) rotating backwards
C) stationary
D) none of these answers is correct

Question 42

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 [1:1]
D) reverse

Question 43

A tapered roller bearing is designed to accept ______ loads.

A) radial
B) axial
C) both "radial" and "axial"
D) neither "radial" and "axial"

Question 44

_____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 45

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 46

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 driven or output member is always the ring gear. Who is correct?

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

Question 47

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) all answers are correct

Question 48

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 49

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

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

Question 50

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 51

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 52

The transmission for many hybrid vehicles uses _____to drive and hold planetary gearset elements.

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

Question 53

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 54

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 55

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 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

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 59

_____ bearings are thrust washers fitted with roller bearings.

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

Question 60

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 61

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

Question 62

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 63

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

Question 64

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 65

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

Question 66

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

Question 67

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

Question 68

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

Question 69

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

Question 70

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 answers are correct

Question 71

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

Question 72

________________ control the axial movement of rotating transmission components.

Question 73

Automatic transmissions designed with constant-mesh helical gears on parallel shafts, similar to the design of a manual transaxle, are used in ____________________ automobiles.

Question 74

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 75

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

Question 76

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

Question 77

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

Question 78

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

Question 79

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

Question 80

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