Question 1

Dual-clutch transmissions can change gears faster than any other geared transmission.

Accepted Answer

Dual-clutch transmissions use two separate clutches for odd and even gears, allowing for quick gear changes without a loss of power or torque. This makes them the fastest shifting type of transmission.

Question 2

Two-mode hybrid vehicles can rely on electric motor power, engine power, or both.

Accepted Answer

Two-mode hybrid vehicles are capable of operating in two different modes which include electric only mode, engine only mode or both electric and engine mode. Therefore, they can rely on electric motor power, engine power or both.

Question 3

A DCT transmission is really two separate transmissions, one for the even-numbered gears and one for the odd-numbered gears.

Accepted Answer

A DCT transmission has two separate clutches, one for the even-numbered gears and one for the odd-numbered gears. This allows for faster and smoother gear shifts compared to a traditional manual transmission.

Question 4

A(n) _____ is a fully automated, manual transmission with two computer-controlled clutches.
A) SMT
B) DCT
C) CVT
D) SST

Accepted Answer

DCT stands for Dual Clutch Transmission, which refers to a type of fully automated manual transmission with two computer-controlled clutches. It allows for quick and smooth shifts without the need for a traditional torque converter found in automatic transmissions. SMT refers to Sequential Manual Transmission, which requires manual shifting by the driver, and does not have computer-controlled clutches. CVT refers to Continuously Variable Transmission, which uses a belt and pulley system to provide infinite gear ratios, and SST refers to SportShift Transmission, which is a type of automatic transmission with manual shift options, but does not have the two computer-controlled clutches found in a DCT.

Question 5

In Toyota and Lexus hybrids, MG1 is used as a starter activator and a generator.

Accepted Answer

In Toyota and Lexus hybrids, MG1 (Motor/Generator 1) is used as both a starter activator and a generator.

Question 6

The _____ hybrid system, found in GM, BMW, and DaimlerChrysler vehicles, relies in advanced hybrid, transmission, and electronic technologies to improve fuel economy and overall vehicle performance.
A) two-mode
B) four-mode
C) SMG
D) MGR

Accepted Answer

The two-mode hybrid system is used by GM, BMW, and DaimlerChrysler to improve fuel economy and vehicle performance through a combination of advanced hybrid, transmission, and electronic technologies. The other options (B) four-mode, (C) SMG, and (D) MGR are unrelated to this specific hybrid system.

Question 7

Technician A says both MG1 and MG2 are used to power the drive wheels in a Toyota hybrid drive system. Technician B says only MG1 is used to drive the wheels. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Accepted Answer

In a Toyota hybrid drive system, MG2 is used to drive the wheels, while MG1 primarily functions as a generator and starter for the engine.

Question 8

All dual-clutch transmissions use wet clutches to prevent overheating and damage.

Accepted Answer

Dual-clutch transmissions can use either wet or dry clutches; the choice depends on the specific application, design, and performance requirements. Wet clutches are lubricated with oil to manage heat, while dry clutches do not use oil, which can make them lighter but potentially less durable under high stress.

Question 9

If a CVT is equipped with five or six predetermined pulley stops in the transmission, it is known as a(n) _____.
A) manual transmission
B) automatic transmission
C) stepless transmission
D) stepped transmission

Accepted Answer

A CVT (Continuously Variable Transmission) with predetermined pulley stops is known as a stepped transmission. These stops create fixed ratios similar to traditional automatic transmissions, blending CVT efficiency with the familiar feel of gear changes.

Question 10

DCTs were first put into production by _____.
A) Volkswagen
B) Borg Warner
C) BMW
D) Porsche

Accepted Answer

Borg Warner was the first company to put dual-clutch transmissions (DCTs) into production in the early 2000s. While BMW, Volkswagen, and Porsche all use DCTs in their vehicles, they were not the first to do so.

Question 11

Motor generator 1 (MG1) and Motor generator 2 (MG2) are components found in _____.
A) Toyota and Lexus hybrids
B) Ford hybrids
C) BMW hybrids
D) Honda hybrids

Accepted Answer

MG1 and MG2 are components found in Toyota and Lexus hybrids.

Question 12

A CVT without a torque converter may use a(n) _____.
A) dual-clutch flywheel
B) start clutch
C) planetary gear
D) initial start pulley

Accepted Answer

A start clutch can be used in place of a torque converter in a CVT to provide initial starting power and smooth engagement. Dual-clutch flywheels are typically used in dual-clutch transmissions, not CVTs. Planetary gears and initial start pulleys are not typically used in CVTs without torque converters.

Question 13

The size of the pulleys in a CVT is _____ controlled to select the best overall drive ratio based on throttle position, vehicle speed, and engine speed
A) manually
B) automatically
C) electronically
D) computer

Accepted Answer

The size of the pulleys in a CVT is electronically controlled using sensors that transmit data to the vehicle's computer, which then calculates the optimal drive ratio for the given driving conditions. This process happens automatically and continuously, without the need for any manual adjustment.

Question 14

The most complex transmissions are those used in most high-performance vehicles.

Accepted Answer

High-performance vehicles often use advanced transmissions, but complexity varies widely across different types of vehicles, including commercial, industrial, and luxury vehicles, which may have transmissions that are equally or more complex for different purposes.

Question 15

Currently, Audi has more models available with DCTs than any other manufacturer.

Accepted Answer

Volkswagen Group, which Audi is part of, widely uses DCTs across its brands, but Audi itself does not have the most models with DCTs compared to all other manufacturers. Brands like Volkswagen and Porsche also offer numerous models with DCTs, and other manufacturers outside the Volkswagen Group offer a variety of models with DCTs as well.

Question 16

Sequential manual transmissions (SMTs) work like typical manual transmissions, except automatic actuators shift the gears and work the clutch.

Accepted Answer

Sequential manual transmissions (SMTs) require the driver to manually shift gears in a sequential order, unlike typical manual transmissions where the driver can select any gear. They do not use automatic actuators for shifting or clutch operation.

Question 17

Dual-clutch transmissions are being discussed: Technician A says these transmissions use a modified torque converter to transfer power from the engine to the transmission. Technician B says dual-clutch transmissions can use either wet or dry clutches. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Accepted Answer

Dual-clutch transmissions use two separate clutches, one for odd-numbered gears and one for even-numbered gears, to preselect a gear before engaging it. These clutches can be either wet or dry. They do not use a torque converter. Therefore, only Technician B is correct.

Question 18

In a typical CVT, one pulley is the drive member and the other is the driven member.

Accepted Answer

In a typical CVT (Continuously Variable Transmission), one pulley serves as the drive member and the other pulley serves as the driven member. The pulley sizes can vary to change the gear ratio and provide a seamless variation in the transmission's output.

Question 19

A CVT transmission is an automatic transmission which functions like a manual transmission.

Accepted Answer

A CVT transmission, or continuously variable transmission, uses a belt and pulley system to provide an infinite number of gear ratios, similar to how a manual transmission allows the driver to shift through gears. However, in a CVT transmission, the shifting is done automatically by the transmission control module.

Question 20

Controller area network (CAN) components are used in _____ to interconnect the network of electronic control modules.
A) Toyota and Lexus hybrids
B) Ford hybrids
C) BMW hybrids
D) Honda hybrids

Accepted Answer

The answer of Controller area network (CAN) components are used...

Quiz 11: Electronically Controlled and Automated Transmissions Diagnosing Advanced Electronic Systems

Dual-clutch transmissions can change gears faster than any other geared transmission.

Two-mode hybrid vehicles can rely on electric motor power, engine power, or both.

A DCT transmission is really two separate transmissions, one for the even-numbered gears and one for the odd-numbered gears.

A(n) _____ is a fully automated, manual transmission with two computer-controlled clutches.

In Toyota and Lexus hybrids, MG1 is used as a starter activator and a generator.

The _____ hybrid system, found in GM, BMW, and DaimlerChrysler vehicles, relies in advanced hybrid, transmission, and electronic technologies to improve fuel economy and overall vehicle performance.

Technician A says both MG1 and MG2 are used to power the drive wheels in a Toyota hybrid drive system. Technician B says only MG1 is used to drive the wheels. Who is correct?

All dual-clutch transmissions use wet clutches to prevent overheating and damage.

If a CVT is equipped with five or six predetermined pulley stops in the transmission, it is known as a(n) _____.

DCTs were first put into production by _____.

Motor generator 1 (MG1) and Motor generator 2 (MG2) are components found in _____.

A CVT without a torque converter may use a(n) _____.

The size of the pulleys in a CVT is _____ controlled to select the best overall drive ratio based on throttle position, vehicle speed, and engine speed

The most complex transmissions are those used in most high-performance vehicles.

Currently, Audi has more models available with DCTs than any other manufacturer.

Sequential manual transmissions (SMTs) work like typical manual transmissions, except automatic actuators shift the gears and work the clutch.

Dual-clutch transmissions are being discussed: Technician A says these transmissions use a modified torque converter to transfer power from the engine to the transmission. Technician B says dual-clutch transmissions can use either wet or dry clutches. Who is correct?

In a typical CVT, one pulley is the drive member and the other is the driven member.

A CVT transmission is an automatic transmission which functions like a manual transmission.

Controller area network (CAN) components are used in _____ to interconnect the network of electronic control modules.