Torque Converters

The part of the torque converter or fluid coupling that is driven by the engine is the:

Impeller

Turbine

Stator

Driven torus

Correct! Wrong!

Fluid motion in the converter is caused by:

Pressure from the pump

Movement of the vanes

Centrifugal force

Opposition to motion

Correct! Wrong!

Fluid couplings are not as efficient as standard torque converters because:

They have lock-up clutches

They have curved vanes and stators

They have different fluid requirements

They have straight vanes and no stator

Correct! Wrong!

Fluid flow that occurs in the same directions as the motion of the impeller is called:

Vortex flow

Circular flow

Rotary flow

Phased flow

Correct! Wrong!

The circular flow of oil between the impeller and the turbine is called:

Rotary flow

Stator flow

Coupling flow

Vortex flow

Correct! Wrong!

The operation of a hydraulic type lock-up converter requires the use of control valves to direct fluid flow:

True

False

Correct! Wrong!

High fluid levels in a transmission is better than low fluid levels in a transmission.

True

False

Correct! Wrong!

Pressure testing the converter after it is removed is done to determine:

If the converter will jam under load.

If the stator interferes with the turbine

If there are any external leaks

If the one-way clutch operates correctly

Correct! Wrong!

Performing a stall test on a vehicle will determine:

If the stator interferes with the turbine

If the stator interferes with the impeller

If the stator has too much end-play

If the stator one-way clutch slips

Correct! Wrong!

Coupling speed occurs when:

The stator looks and redirects flow

Vortex flow is highest

Rotary flow is lowest

When the stator begins to free wheel

Correct! Wrong!

Stator action may be either rotating or held, and this is controlled by:

Hydraulic pistons

One-way clutch

Electromagnetic clutch

Momentum

Correct! Wrong!

A torque converter has:

Its oil supplied by the pump in the automatic transmission

Its own oil built in and does not circulate

An oil filter attached to the turbine

Oil of a different viscosity than that in the transmission

Correct! Wrong!

In many cases the torque converter, because of its mass, takes the place of the engine flywheel.

True

False

Correct! Wrong!

The stator in a torque converter is either fixed or:

Free to turn in both directions

Attached to an overrunning clutch

Effective only at low speeds

Connected mechanically to the impeller

Correct! Wrong!

The pump (impeller) in a torque converter is positioned closest to the engine.

True

False

Correct! Wrong!

The turbine blades have a greater curve than the impeller blades.

True

False

Correct! Wrong!

Some torque converters are equipped with a lockup clutch feature, this lockup:

Helps increase fuel efficiency

Reduces heat generated by the torque converter

Reduces engine RPM

All of the above

Correct! Wrong!

Which of the major torque converter parts is responsible for torque multiplication within the unit?

Pump/impeller

Stator

Turbine

Lockup clutch

Correct! Wrong!

Torque converter stall is when the impeller is rotating under power and the turbine is stopped.

True

False

Correct! Wrong!

The lockup clutch in a torque converter is also known as the overrunning clutch.

True

False

Correct! Wrong!

Vortex oil flow is at MAXIMUM when torque converter coupling takes place.

True

False

Correct! Wrong!

Rotary oil flow is at maximum when torque converter lockup takes place.

True

False

Correct! Wrong!

When stall testing a torque converter in a transmission, there is maximum:

Rotary flow

Vortex flow

Retarder pressure

Governor pressure

Correct! Wrong!

In a torque converter, when the turbine is turning at almost the same speed as the impeller:

Vortex flow is high and rotary flow is low

Rotary flow is high and vortex flow is low

Rotary and vortex flow are even

The stator should be in the stopped position

Correct! Wrong!

Which component of a torque converter is connected to the input shaft of the transmission?

Turbine

Stator

Impeller

One way clutch

Correct! Wrong!

Torque Converters

The part of the torque converter or fluid coupling that is driven by the engine is the:

Fluid motion in the converter is caused by:

Fluid couplings are not as efficient as standard torque converters because:

Fluid flow that occurs in the same directions as the motion of the impeller is called:

The circular flow of oil between the impeller and the turbine is called:

The operation of a hydraulic type lock-up converter requires the use of control valves to direct fluid flow:

High fluid levels in a transmission is better than low fluid levels in a transmission.

Pressure testing the converter after it is removed is done to determine:

Performing a stall test on a vehicle will determine:

Coupling speed occurs when:

Stator action may be either rotating or held, and this is controlled by:

A torque converter has:

In many cases the torque converter, because of its mass, takes the place of the engine flywheel.

The stator in a torque converter is either fixed or:

The pump (impeller) in a torque converter is positioned closest to the engine.

The turbine blades have a greater curve than the impeller blades.

Some torque converters are equipped with a lockup clutch feature, this lockup:

Which of the major torque converter parts is responsible for torque multiplication within the unit?

Torque converter stall is when the impeller is rotating under power and the turbine is stopped.

The lockup clutch in a torque converter is also known as the overrunning clutch.

Vortex oil flow is at MAXIMUM when torque converter coupling takes place.

Rotary oil flow is at maximum when torque converter lockup takes place.

When stall testing a torque converter in a transmission, there is maximum:

In a torque converter, when the turbine is turning at almost the same speed as the impeller:

Which component of a torque converter is connected to the input shaft of the transmission?

Success!

Heavy-Duty Mechanic - Trucks & Equipment