Question 1

Which is not a component of the torque converter?

Accepted Answer

The rotor is not a component of the torque converter. A torque converter typically consists of three main parts: the impeller (or pump), the turbine, and the stator. These components work together to transfer rotating power from the engine to the transmission. The rotor is not a term used to describe any part of a torque converter.

Question 2

The transmission cooler is normally located ______.

Accepted Answer

The transmission cooler is typically integrated into the radiator to utilize the cooling effect of the engine's coolant system. This helps in dissipating heat from the transmission fluid.

Question 3

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?

Accepted Answer

Both statements are correct. Spool valves indeed have at least two lands connected by a thin stem, and both check ball and poppet are types of valve designs.

Question 4

Single wrap and double wrap are types of ______.

Accepted Answer

Single wrap and double wrap refer to types of bands used in automatic transmissions to hold or release components.

Question 5

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?

Accepted Answer

The transmission oil pump is typically driven by the hub on the back of the converter housing, not the turbine shaft.

Question 6

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?

Accepted Answer

Technician A is correct because a Simpson geartrain indeed consists of two separate planetary gearsets with a common sun gear, two ring gears, and two planetary pinion carriers. Technician B's description inaccurately describes a Ravigneaux gearset, which actually has two sun gears, a set of long and short planet gears within a single carrier, and one ring gear, not two.

Question 7

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?

Accepted Answer

Torque converters are sealed units filled with transmission fluid, but they are not designed to be disassembled for cleaning or repairs.

Question 8

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?

Accepted Answer

The answer of Technician A says multiple-disc clutch packs are...

Question 9

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

Accepted Answer

The answer of Butt-end, open-end, and hook-end are types of...

Question 10

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?

Accepted Answer

Both Technician A and Technician B are correct. The lockup piston clutch in an automatic transmission serves to improve fuel economy by directly connecting the engine to the transmission at certain speeds, eliminating the slippage and inefficiency of the torque converter. Additionally, it is designed with a damper assembly to smoothly transmit driving torque and absorb driveline shock, enhancing the driving experience and protecting the drivetrain components.

Question 11

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?

Accepted Answer

Thrust washers are designed to control axial loads, not radial loads, while bushings are primarily used to control radial loads, not axial.

Question 12

Which of the following pressures increases as road speed increases?

Accepted Answer

Governor pressure increases with road speed because it is directly related to the speed of the vehicle. The governor, typically found in automatic transmissions, senses the speed of the vehicle (or the output shaft speed of the transmission) and adjusts the hydraulic pressure accordingly to control gear shifting.

Question 13

Which torque converter components is attached to the engine flywheel?

Accepted Answer

The impeller is the component of the torque converter that is attached to the engine flywheel, acting as the pump in the converter system.

Question 14

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

Accepted Answer

The throttle valve in the valve body of an automatic transmission produces a fluid pressure that is proportional to engine load. This helps the transmission adjust shifts according to how hard the engine is working, ensuring smoother and more efficient operation.

Question 15

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?

Accepted Answer

Thrust washers are designed to support axial loads, not radial loads, making Technician B's statement correct.

Question 16

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?

Accepted Answer

Band lining material can be made from a variety of compounds, including semimetallic compounds and paper-based materials. Both technicians are correct in this context.

Question 17

A Belleville spring is commonly found inside a _____.

Accepted Answer

The answer of A Belleville spring is commonly found inside...

Question 18

The ___________ is multiplier of torque converter fluid power.

Accepted Answer

The stator is the component of a torque converter that multiplies the fluid power by redirecting the fluid flow between the impeller and turbine, enhancing the torque produced by the engine.

Question 19

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.

Accepted Answer

The answer of When hydraulic pressure is applied to one...

Question 20

Which torque converter components connects to the transmission input shaft?

Accepted Answer

The turbine in a torque converter is connected to the transmission input shaft. It receives fluid from the impeller, which is driven by the engine, and transmits torque to the transmission.

Quiz 41: Automatic Transmissions and Transaxles