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Heavy Duty Truck Systems

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Quiz 21 :

Electronically Controlled Automatic Transmissions Ecats

Quiz 21 :

Electronically Controlled Automatic Transmissions Ecats

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Which of the following is generally true of a non-latching solenoid?
Free
Multiple Choice
Answer:

Answer:

A

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Which of these clutches puts an Allison WT drop-box into extra-low range?
Free
Multiple Choice
Answer:

Answer:

C

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Which of the following are advantages of using secondary submodulation of solenoids?
Free
Multiple Choice
Answer:

Answer:

C

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When does an Allision WT transmission use fast adaptive mode?
Multiple Choice
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A solenoid that requires a momentary voltage source to change position,then holds position and requires reverse current pulse to revert to its original position known as?
Multiple Choice
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Which of the following terms are used by Allison to describe the solenoids used in WT controls?
Multiple Choice
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When Allison WT drop-box output is split between the front and rear axles,how much of the available torque would normally go to the front axle?
Multiple Choice
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What is the minimum number of planetary gearsets used in a Caterpillar CX ECAT?
Multiple Choice
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How many planetary gearsets are there in an Allison TC10 ECAT?
Multiple Choice
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What is used to signal accelerator position to an Allison ECAT electronics?
Multiple Choice
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Which of the following Allison WT clutches are designed to transmit rotating torque to the planetary gears?
Multiple Choice
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Technician A says that an Allison TC10 splits input torque between a pair of countershafts.Technician B says that it is possible to transmit output torque from a TC10 bypassing the gearbox module.Who is correct?
Multiple Choice
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Which of the folowing is a full-authority ECAT?
Multiple Choice
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Which of the following WT clutches are designed to hold at least one member of a planetary gearset stationary?
Multiple Choice
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What is the minimum number of planetary gearsets used in an Allison WT transmission?
Multiple Choice
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What is the source address (SA)of the transmission ECU on the J1939 data bus?
Multiple Choice
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Which of the following statements accurately describe primary and secondary modulation of solenoids in a WT transmission?
Multiple Choice
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Which of the following descriptions best describes the older Allison CEC family of electronically-managed transmissions?
Multiple Choice
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When ordering parts for any WT transmission,what information must be communicated accurately to identify the transmission?
Multiple Choice
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Which of the following true statements is true regarding solenoid operation in an Allison ECATs?
Multiple Choice
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