Exam 21: Continuously Variable Transmissions

Technician A says the steel belt used in a continuously variable transmission (CVT) is made up of hundreds of transversely mounted steel plates that are held in place with several steel bands. Technician B says the transverse steel plates slip on the sides of the pulley and in turn are pushed by the pulley. Who is correct?

A CVT drive belt is being inspected when the transmission is being disassembled. Technician A says that a worn belt can be the cause of a slipping transmission. Technician B says that if a belt shows signs of wear, it doesn't necessarily need to be replaced. Who is correct?

A Continuously Variable Transmission (CVT) has fixed gear ratios.

Most manufacturers of hybrid vehicles use a limited number of multi-disc clutch packs and a set of planetary gears to allow the transmission to operate in ________.

Which of the following is improved because a Continuously Variable Transmission (CVT) permits the engine to operate in its most efficient operating rpm range?

Tech A states that manufacturers use CVTs in order to increase fuel economy. Tech B states that CVTs are designed to keep an engine operating at its most efficient RPM. Who is correct?

Tech A states that some manufacturers display transmission fluid life on the scan tool. Tech B states that CVTs typically require fluid service between 60K and 80,000 miles (128,748 km). Who is correct?

Technician A says the longitudinal steel bands in a continuously variable transmission (CVT) are used to hold the belt together and keep the steel plates lined up. Technician B says these bands used in a CVT hold the plates closely together in a very strong and flexible ring. Who is correct?

Technician A says the longitudinal steel bands in a continuously variable transmission (CVT) are used to hold the belt together and keep the steel plates lined up. Technician B says these bands used in a CVT hold the plates closely together in a very strong and flexible ring. Who is correct?

Technician A says the toroidal continuously variable transmission (CVT) can handle larger amounts of torque than a belt-driven CVT. Technician B says toroidal CVTs use special transmission fluid to prevent wear to the rollers. Who is correct?

All of the following are the advantage of using the CVT in the vehicle except:

Choose the correct statement with respect to variable-diameter pulley CVT.

Technician A says the toroidal continuously variable transmission (CVT) can have a high gear ratio of approximately 4:1 to begin accelerating the vehicle. Technician B says when the rollers in a toroidal CVT are perpendicular to the input and output disc, the gear ratio is 1:1. Who is correct?

Technician A says the steel belt used in a continuously variable transmission (CVT) is made up of hundreds of transversely mounted steel plates that are held in place with several steel bands. Technician B says the transverse steel plates slip on the sides of the pulley and in turn are pushed by the pulley. Who is correct?

Technician A says that Variable Diameter Pulley (VDP) Continuously Variable Transmissions (CVT) will often have a planetary gear set to produce reverse. Technician B says that many CVTs in vehicles use a rubber drive belt between two pulleys to transfer power. Who is correct?

Technician A says most manufacturers recommend repairing internal components of a continuously variable transmission (CVT). Technician B says specialty tools are required to compress the output pulley and reinstall the belt on most CVTs. Who is correct?

Tech A states that CVTs utilize very specific transmission fluid that should not be substituted. Tech B states that universal CVT fluid will work in all CVTs. Who is correct?

Technician A says a variable-diameter pulley (VDP) system operates using two variable diameter pulleys with either steel or a rubber belt between them. Technician B says the rubber belt operates much quieter than a steel belt, so most vehicle manufacturers use them. Who is correct?

Technician A says the toroidal continuously variable transmission (CVT) cannot handle as high an amount of torque as a belt-driven CVT. Technician B says toroidal CVTs use special transmission fluid to prevent wear to the rollers. Who is correct?

Technician A say the most common type of continuously variable transmission (CVT) today is the variable-diameter pulley transmission. Technician B says the variable-diameter pulley (VDP) has two pulleys with movable drive faces that can be adjusted to change the pulley's effective diameter. Who is correct?