Question 1

What is used to signal rail position in early versions of AutoShift AMTs?

Accepted Answer

A)  Potentiometers 
B)  Hall-effect sensors 
C)  Variable capacitance sensors 
D)  Inductive pulse generators 
A)  Potentiometers 
B)  Hall-effect sensors 
C)  Variable capacitance sensors 
D)  Inductive pulse generators

Question 2

What is used to stop the countershafts for a shift in a RoadRanger AMT if the clutch is either defective or out of adjustment?

Accepted Answer

A)  nothing,gear clash will result 
B)  inertia brake 
C)  clutch brake 
D)  snubber valve 
A)  nothing,gear clash will result 
B)  inertia brake 
C)  clutch brake 
D)  snubber valve

Question 3

Which of the following AMTs are two-pedal systems?

Accepted Answer

A)  UltraShift 
B)  Mercedes AGS 
C)  FreedomLine 
D)  all of the above 
A)  UltraShift 
B)  Mercedes AGS 
C)  FreedomLine 
D)  all of the above

Question 4

Technician A says that in the event of a loss of chassis electricity,an Eaton AMT will default to mechanical operation.Technician B says that so long as the engine continues to run,the output shaft on an Eaton AMT must rotate.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Question 5

How often is an Eaton AMT electric shifter assembly calibrated?

Accepted Answer

A)  each time the ignition key is turned off 
B)  each time the ignition key is turned on 
C)  whenever a fault code is logged 
D)  whenever a technician accesses the data bus 
A)  each time the ignition key is turned off 
B)  each time the ignition key is turned on 
C)  whenever a fault code is logged 
D)  whenever a technician accesses the data bus

Question 6

Technician A says that multiplexing enables the transmission and engine to precisely synchronize engine and transmission shaft speeds for shift events.Technician B says that multiplexing communication betwen the engine and transmission makes the clutch unnecessary in AMTs.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Question 7

What gear oil is recommended by Eaton for use in their AMTs?

Accepted Answer

A)  40W Military spec mineral oil 
B)  synthetic E-500 
C)  Dexron II 
D)  5W-40 engine oil 
A)  40W Military spec mineral oil 
B)  synthetic E-500 
C)  Dexron II 
D)  5W-40 engine oil

Question 8

What servo force is used to engage an Eaton AMT inertia brake?

Accepted Answer

A)  electrical force 
B)  air pressure 
C)  hydraulic force 
D)  mechanical force 
A)  electrical force 
B)  air pressure 
C)  hydraulic force 
D)  mechanical force

Question 9

When an AMT is J1939 multiplexed to the chassis data bus,which of the following is true?

Accepted Answer

A)  transmission electronics are networked to the chassis data backbone 
B)  input hardware can be shared with other electronic systems on data bus 
C)  transmission can both broadcast and receive information from other chassis systems 
D)  all of the above 
A)  transmission electronics are networked to the chassis data backbone 
B)  input hardware can be shared with other electronic systems on data bus 
C)  transmission can both broadcast and receive information from other chassis systems 
D)  all of the above

Question 10

Technician A says that a self-adjusting,system-actuated clutch is used with a ZF Meritor FreedomLine transmission.Technician B says that Mercedes AGS troubleshooting is performed using Freightliner ServicePro software.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Question 11

Technician A says that a function of the power management electronics used with Eaton AMTs is to protect the ECU from voltage spikes that exceed 32 V-DC.Technician B says that the transmission ECU is located on the left side of current versions of RoadRanger AMTs.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Question 12

When removing an inertia brake from an Eaton AMT,which of the following must be done first?

Accepted Answer

A)  remove the transmission from the chassis 
B)  disconnect the vehicle battery bank 
C)  remove the transmission air/filter regulator 
D)  remove the transmission ECU 
A)  remove the transmission from the chassis 
B)  disconnect the vehicle battery bank 
C)  remove the transmission air/filter regulator 
D)  remove the transmission ECU

Question 13

Which of the following is NOT classified as an automated manual transmission (AMT)?

Accepted Answer

A)  Allison WT 
B)  RoadRanger AutoShift 
C)  Arvin Meritor FreedomLine 
D)  Mercedes Benz AGS 
A)  Allison WT 
B)  RoadRanger AutoShift 
C)  Arvin Meritor FreedomLine 
D)  Mercedes Benz AGS

Question 14

When a five-speed fallback condition has occurred which of the following is true?

Accepted Answer

A)  fault is in auxiliary section 
B)  main section is fully operational 
C)  shifting is limited to 5-speeds 
D)  all of the above 
A)  fault is in auxiliary section 
B)  main section is fully operational 
C)  shifting is limited to 5-speeds 
D)  all of the above

Question 15

Technician A says that the first step in troubleshooting Eaton AMT complaints should always be to identify any logged fault codes.Technician B says that an AutoShift pretest requires that the technician check the electrical and pneumatic inputs to the transmission before progressing to more detailed troubleshooting.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Question 16

Which of the following is true of the main box used on an Eaton AMT?

Accepted Answer

A)  single-countershaft 
B)  twin-countershaft 
C)  triple-countershaft 
D)  compound planetary gearset 
A)  single-countershaft 
B)  twin-countershaft 
C)  triple-countershaft 
D)  compound planetary gearset

Question 17

Technician A says that in downshift fallback mode,AutoShift only permits downshifts.Technician B says that when a transmission is in downshift fallback mode,it cannot be shifted out of neutral.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Question 18

Which of the following best describes the function of the gear select sensor in an Eaton AMT?

Accepted Answer

A)  shifts the rail shaft 
B)  signals the rail select motor 
C)  monitors shift finger position 
D)  positions the shift finger 
A)  shifts the rail shaft 
B)  signals the rail select motor 
C)  monitors shift finger position 
D)  positions the shift finger

Question 19

Which of the following is true of the function of an Eaton RoadRanger AMT electric shifter assembly?

Accepted Answer

A)  moves the shift finger transversely into one of the three rails 
B)  moves the ball screw block on the gear select yoke 
C)  actuates the shift shaft to move forward or rearward 
D)  all of the above 
A)  moves the shift finger transversely into one of the three rails 
B)  moves the ball screw block on the gear select yoke 
C)  actuates the shift shaft to move forward or rearward 
D)  all of the above

Question 20

Technician A says current versions of the AutoShift AMTs use a single-module controller.Technician B says that a disadvantage of current AutoShift AMTs is that the controller cannot be networked to a J1939 data bus.Who is correct?

Accepted Answer

A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B 
A)  Technician A only 
B)  Technician B only 
C)  Both A and B 
D)  Neither A nor B

Exam 20: Electronically Automated Standard Transmissions

What is used to signal rail position in early versions of AutoShift AMTs?

What is used to stop the countershafts for a shift in a RoadRanger AMT if the clutch is either defective or out of adjustment?

Which of the following AMTs are two-pedal systems?

Technician A says that in the event of a loss of chassis electricity,an Eaton AMT will default to mechanical operation.Technician B says that so long as the engine continues to run,the output shaft on an Eaton AMT must rotate.Who is correct?

How often is an Eaton AMT electric shifter assembly calibrated?

Technician A says that multiplexing enables the transmission and engine to precisely synchronize engine and transmission shaft speeds for shift events.Technician B says that multiplexing communication betwen the engine and transmission makes the clutch unnecessary in AMTs.Who is correct?

What gear oil is recommended by Eaton for use in their AMTs?

What servo force is used to engage an Eaton AMT inertia brake?

When an AMT is J1939 multiplexed to the chassis data bus,which of the following is true?

Technician A says that a self-adjusting,system-actuated clutch is used with a ZF Meritor FreedomLine transmission.Technician B says that Mercedes AGS troubleshooting is performed using Freightliner ServicePro software.Who is correct?

Technician A says that a function of the power management electronics used with Eaton AMTs is to protect the ECU from voltage spikes that exceed 32 V-DC.Technician B says that the transmission ECU is located on the left side of current versions of RoadRanger AMTs.Who is correct?

When removing an inertia brake from an Eaton AMT,which of the following must be done first?

Which of the following is NOT classified as an automated manual transmission (AMT)?

When a five-speed fallback condition has occurred which of the following is true?

Which of the following is true of the main box used on an Eaton AMT?

Technician A says that in downshift fallback mode,AutoShift only permits downshifts.Technician B says that when a transmission is in downshift fallback mode,it cannot be shifted out of neutral.Who is correct?

Which of the following best describes the function of the gear select sensor in an Eaton AMT?

Which of the following is true of the function of an Eaton RoadRanger AMT electric shifter assembly?

Technician A says current versions of the AutoShift AMTs use a single-module controller.Technician B says that a disadvantage of current AutoShift AMTs is that the controller cannot be networked to a J1939 data bus.Who is correct?

Introduction to Servicing Heavy-Duty Trucks

Shop Safety and Operations

Tools and Fasteners

Preventive Maintenance Program

Fundamentals of Electricity

Fundamentals of Electronics and Computers

Batteries

Charging Systems

Cranking Systems

Chassis Electrical Circuits

Diagnosis and Repair of Electronic Circuits

Multiplexing

Hydraulics

Clutches

Standard Transmissions

Standard Transmission Servicing

Torque Converters

Automatic Transmissions

Automatic Transmission Maintenance

Electronically Controlled Automatic Transmissions Ecats

Driveshaft Assemblies

Heavy-Duty Truck Axles

Heavy-Duty Truck Axle Service and Repair

Steering and Alignment

Suspension Systems

Wheels and Tires

Truck Brake Systems

Hydraulic Brakes and Air-Over-Hydraulic Brake Systems

Abs and Ebs

Air Brake Servicing

Vehicle Chassis Frame

Heavy-Duty Truck Trailers

Fifth Wheels and Coupling Systems

Heavy-Duty Heating, ventilation, and Air Conditioning Systems

Filters