Question 1

In an electronically controlled automatic transmission, which of the following sensors changes resistance based upon the regulated hydraulic pressure output from the front pump?
A) Transmission pressure switch
B) Transmission fluid temperature switch
C) Line pressure sensor
D) None of the above

Accepted Answer

The line pressure sensor changes resistance based on the regulated hydraulic pressure output from the front pump, providing feedback to the transmission control module.

Question 2

A line pressure sensor is a transducer that varies resistance with the pressure applied to the sensor element.

Accepted Answer

A line pressure sensor is a type of transducer that changes its electrical resistance in response to pressure changes, allowing it to measure and convert pressure into an electrical signal.

Question 3

Automatic transmission line pressure that is sent to the governor is allowed to be exhausted back to the transmission pan when the vehicle is not moving and the governor is not creating any pressure.

Accepted Answer

When the vehicle is not moving, the governor is not spinning, and thus not creating pressure, allowing the line pressure to be exhausted back to the transmission pan.

Question 4

Which of the following are two other names commonly used for the manual lever position (MLP) switch?
A) Transmission Range Switch or Neutral Safety Switch
B) Neutral Safety Switch or Park Position Switch
C) Transmission Range Switch or Park Position Switch
D) Park Position Switch or Reverse Switch

Accepted Answer

The manual lever position (MLP) switch is commonly referred to as the Transmission Range Switch or Neutral Safety Switch. These terms are used interchangeably in automotive contexts to describe the same component that ensures the vehicle starts only in park or neutral.

Question 5

The manual lever position (MLP) is often mounted directly on the automatic transmission case where the shift linkage connects to the transmission.

Accepted Answer

The manual lever position (MLP) sensor is typically mounted on the transmission case to detect the position of the shift linkage and ensure proper gear selection.

Question 6

Technician A says the manual lever position (MLP) switch is sometimes called a transmission range switch or a neutral safety switch. Technician B says a MLP switch is a multi-position switch that sends a signal to the power train control module (PCM) regarding which gear the manual lever is in. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Accepted Answer

Technician A is correct because the MLP switch is indeed sometimes referred to as a transmission range switch or a neutral safety switch. Technician B is also correct because the MLP switch sends signals to the PCM about the gear position.

Question 7

Technician A says the manual lever position (MLP) switch is sometimes called a transmission range switch or a neutral safety switch. Technician B says a MLP switch monitors transmission fluid levels. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Accepted Answer

Technician A is correct because the manual lever position (MLP) switch is indeed sometimes referred to as a transmission range switch or a neutral safety switch. Technician B is incorrect because the MLP switch does not monitor transmission fluid levels.

Question 8

Technician A says electronically controlled transmissions use Electronic Pressure Control (EPsolenoids to control shift timing. Technician B says when looking at electronic pressure control solenoids with a digital storage oscilloscope (DSO); the voltage pattern would be a square wave. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Accepted Answer

The answer of Technician A says electronically controlled transmissions use...

Question 9

Technician A says on computerized transmissions, an electronic pressure control (EPsolenoid is used to regulate transmission line pressure. Technician B says most EPC solenoids are pulse-width modulated. Who is correct?
A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Accepted Answer

Technician A is correct because electronic pressure control solenoids are used to regulate transmission line pressure in computerized transmissions. Technician B is also correct because most EPC solenoids are indeed pulse-width modulated to control the pressure accurately.

Question 10

Torque multiplication within a torque converter is automatically adjusted, within design limits, by the difference in speed between the impeller and turbine.

Accepted Answer

The torque converter adjusts torque multiplication based on the relative speed difference between the impeller and turbine, allowing for automatic adaptation within its design limits.

Question 11

When the engine accelerates, higher impeller speed discharges the fluid across and against the turbine vanes. What happens when the oil strikes the turbine vanes?
A) The turbine to begins to spin
B) Torque is transferred to the input shaft of the transmission
C) Both A and B
D) Neither A nor B

Accepted Answer

When the oil strikes the turbine vanes, it causes the turbine to spin, which in turn transfers torque to the input shaft of the transmission.

Question 12

Which of the following describes torque multiplication in a torque converter?
A) Increases with turbine speed
B) Is maximum at converter stall
C) Decreases with impeller speed
D) Both A and B

Accepted Answer

The answer of Which of the following describes torque multiplication...

Question 13

Which valve modulates pressure in proportion with vehicle speed?
A) Throttle valve
B) Governor valve
C) Converter pressure regulator
D) Modulator valve

Accepted Answer

The governor valve modulates pressure in proportion with vehicle speed, as it is designed to adjust the hydraulic pressure based on the speed of the vehicle.

Question 14

Which of the following was used to connect the engine crankshaft to the input shaft of early automatic transmissions?
A) Fluid coupling
B) Torque converter
C) A dry plate clutch
D) A wet plate clutch

Accepted Answer

Fluid couplings were used in early automatic transmissions to connect the engine crankshaft to the input shaft, allowing for smooth power transfer without a direct mechanical connection.

Question 15

Technician A says that a torque converter is located between the engine and the transmission. Technician B says that a torque converter performs a similar function as a clutch in a manual transmission. Who is correct?
A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Accepted Answer

Both technicians are correct. The torque converter is indeed located between the engine and the transmission, and it performs a similar function to a clutch in a manual transmission by allowing the engine to continue running while the vehicle is stationary.

Question 16

A __________ is a coupler used in place of a torque converter that is basically two fans facing each other.
A) front pump
B) fluid coupler
C) slip disc
D) flex plate

Accepted Answer

A fluid coupler, also known as a fluid coupling, is a device that transmits rotating mechanical power using a fluid medium, typically consisting of two facing fans or turbines.

Question 17

A transmission fluid warmer is used to warm up the fluid quickly.

Accepted Answer

A transmission fluid warmer is designed to increase the temperature of the transmission fluid, especially in cold conditions, to ensure optimal performance and efficiency.

Question 18

Technician A says that a lock up converter is used to achieve a 1:1 speed ratio between the engine and the transmission input shaft. Technician B says that lock up only occurs at higher road speeds. Who is correct?
A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Accepted Answer

A lock-up converter is designed to eliminate the slip between the engine and the transmission input shaft, achieving a 1:1 speed ratio. Lock-up typically occurs at higher road speeds to improve fuel efficiency and reduce heat.

Question 19

The torque converter can multiply torque from the engine to the input shaft of the transmission when required by driving conditions.

Accepted Answer

A torque converter can multiply torque by using its stator to redirect fluid flow, increasing the torque output to the transmission under certain conditions, such as during acceleration.

Question 20

The __________ is the major control for the automatic transmission.
A) ECM
B) governor
C) valve body
D) none of the above

Accepted Answer

The valve body is the major control component in an automatic transmission, directing hydraulic fluid to various valves to control gear shifting.

Quiz 7: Transmission Components

In an electronically controlled automatic transmission, which of the following sensors changes resistance based upon the regulated hydraulic pressure output from the front pump?

A line pressure sensor is a transducer that varies resistance with the pressure applied to the sensor element.

Automatic transmission line pressure that is sent to the governor is allowed to be exhausted back to the transmission pan when the vehicle is not moving and the governor is not creating any pressure.

Which of the following are two other names commonly used for the manual lever position (MLP) switch?

The manual lever position (MLP) is often mounted directly on the automatic transmission case where the shift linkage connects to the transmission.

Technician A says the manual lever position (MLP) switch is sometimes called a transmission range switch or a neutral safety switch. Technician B says a MLP switch monitors transmission fluid levels. Who is correct?

Technician A says on computerized transmissions, an electronic pressure control (EPsolenoid is used to regulate transmission line pressure. Technician B says most EPC solenoids are pulse-width modulated. Who is correct?

Torque multiplication within a torque converter is automatically adjusted, within design limits, by the difference in speed between the impeller and turbine.

When the engine accelerates, higher impeller speed discharges the fluid across and against the turbine vanes. What happens when the oil strikes the turbine vanes?

Which of the following describes torque multiplication in a torque converter?

Which valve modulates pressure in proportion with vehicle speed?

Which of the following was used to connect the engine crankshaft to the input shaft of early automatic transmissions?

Technician A says that a torque converter is located between the engine and the transmission. Technician B says that a torque converter performs a similar function as a clutch in a manual transmission. Who is correct?

A __________ is a coupler used in place of a torque converter that is basically two fans facing each other.

A transmission fluid warmer is used to warm up the fluid quickly.

Technician A says that a lock up converter is used to achieve a 1:1 speed ratio between the engine and the transmission input shaft. Technician B says that lock up only occurs at higher road speeds. Who is correct?

The torque converter can multiply torque from the engine to the input shaft of the transmission when required by driving conditions.

The __________ is the major control for the automatic transmission.