Exam 8: Gears and Shafts

List the reasons that a transmission housing/case will need to be replaced.

Technician A says to multiply torque, gears are used. Technician B says to apply torque to other rotating parts of the drivetrain, gears are used. Who is correct?

Technician A says when the planet carrier is the input, the output gear member always moves in the opposite direction to the planet carrier. Technician B says when the planet carrier is the output, the planet carrier always follows the direction of the input member. Who is correct?

Technician A says that the Lepelletier gear set design limits the number of gear ratios; therefore, this type of transmission is limited to four forward speeds. Technician B says that this gear set design makes the transmission heavier and more bulky than the other designs. Who is correct?

Technician A says the output of the gear set will be in the opposite direction to the input, which produces reverse gear when the planetary carrier is held. Technician B says the gearset produces a gear reduction when the planetary carrier is the input member. Who is correct?

​The _______________ geartrain is an arrangement of two separate planetary gearsets with a common sun gear, two ring gears, and two planetary pinion carriers.

Technician A says the check ball in a shaft must be seated in the correct direction. Technician B says some shafts are hollow with internal bushings to support another shaft. Who is correct?

Thrust washers are often referred to as thrust plates.

Technician A says the sun gear in a planetary gear set is the central gear. Technician B says planet gears are in constant mesh with the sun and ring gears. Who is correct?

Chain deflection is often referred to as chain slack.

The transfer case is usually mounted to the side or rear of the transmission.

The following components are located in the hybrid transaxle assembly, the ____________________ assembly, a(n)____________________ unit, the two ____________________, a(n)____________________, and a(n)____________________.

Planet gears are also known as pinion gears.

Technician A says when an external gear drives another external gear, the output gear will rotate in the opposite direction to the input gear. Technician B says when an external gear drives another external gear, the output gear will rotate in the same direction as the input gear. Who is correct?

Technician A says the input shaft of the transmission connects the output shaft of the TC to the driving members inside the transmission. Technician B says the output shaft connects the driven member of the gear sets to the final drive gear set. Who is correct?

The planet pinion is the bracket in a planetary gear set on which the planet carrier is mounted.

Define a differential and its purpose.

Technician A says when the planet carrier is the driving member of the gear set and the sun gear is held, overdrive occurs. Technician B says if any two of the planetary gear set members receive torque in the same direction at the same speed, the third member is forced to turn with the other two and direct drive is the result. Who is correct?

When an external gear is in mesh with an internal gear, both gears will rotate in which direction?

Technician A says that a compound planetary gear set is comprised of two gear sets that share a common member. Technician B says that some transmissions use a simple planetary gear set added to a compound gear set to gain additional gear ratios. Who is correct?