Automatic Transmissions Test 1

A check ball is a simple hydraulic valve.

A true

A tapered roller bearing is designed to accept ______ loads.

c both a and b

Technician A says that changes in engine load cause changes in hydraulic pressure inside the transmission. Technician B says that engine load is monitored by throttle pedal movement or by engine vacuum. Who is correct?

c both a and b

Technician A says that the purpose of a valve body is to increase oil pressures in response to increases in engine speed. Technician B says that valve bodies are normally fitted with three different types of valves, which start, stop, or use movable parts to regulate and direct the flow of fluid throughout the transmission. Who is correct?

c both a and b

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

a. metal sealing rings

The Ravigneaux gearset has ______.

b. a single carrier with long and short planetary pinion gears

Technician A says that the rear hub of the torque converter is bolted to the flexplate. Technician B says that the flexplate is designed to be flexible enough to allow the front of the converter to move forward or backward if it expands or contracts because of heat or pressure. Who is correct?

b. Technician B

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

b. a belt and pulleys

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

c. produce a fluid pressure that is proportional to engine load

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?

c. both A and B

Technician A says that rotary oil flow is the oil flow around the circumference of the torque converter caused by the rotation of the torque converter on its axis. Technician B says that the vortex flow is caused by the rotation of the torque converter on its axis. Who is correct?

a technician a

While discussing the CVT transaxle used in Toyota hybrid vehicles: Technician A says that the transaxle contains two electric motor/generators, a differential, and a simple planetary gearset. Technician B says that the planetary gearset adjusts the diameter of the pulleys to provide the various speed ratios. Who is correct?

a technician a

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

a true

Which torque converter components is attached to the engine flywheel?

a. impeller

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

a. pressure regulator spool valve

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

a. rotating forward

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?

b b only

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?

b b only

All automatic transaxles use a simple planetary gearset.

b false

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

b false

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.

b false

Which is not a component of the torque converter?

b rotor

The ___________ is multiplier of torque converter fluid power.

b stator

Technician A says that bearings that take radial loads are called Torrington washers. Technician B says that bearings that take axial loads are called thrust washers. Who is correct?

b technician b

While discussing a Lepelletier system: Technician A says that two simple planetary gearsets are connected in tandem. Technician B says that these systems rely on various combinations of the planetary gears to obtain many forward gears. Who is correct?

b technician b

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?

c both a and b

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?

c both a and b

Technician A says that a Simpson gearset is two planetary gearsets that share a common sun gear. Technician B says that a Ravigneaux gearset has two sun gears, two sets of planet gears, and a common ring gear. Who is correct?

c both a and b

Technician A says that a stator aids in directing the flow of fluid from the impeller to the turbine. Technician B says that a stator is equipped with a one-way clutch that allows it to remain stationary when necessary. Who is correct?

c both a and b

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?

c both a and b

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?

c. both A and B

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

c. planetary carrier must be the input member

The function of automatic transmission fluid is to ______.

d all the answers are correct

Technician A says that that one of the primary purposes of the pressure regulator valve is to fill the torque converter with fluid. Technician B says that the pressure regulator valve directly controls throttle pressure. Who is correct?

d neither a or b

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?

d. neither A nor B