Question 1

What type of signal is produced by the throttle position sensor used by Caterpillar ADEM managed engines?&#10;A) mechanical&#10;B) V-DC&#10;C) V-AC&#10;D) PWM

Accepted Answer

PWM&#10;

Question 2

What is used to ensure that Caterpillar ADEMS non-volatile RAM (NV-RAM) is not lost should the vehicle batteries become disconnected?&#10;A) internal ECM battery&#10;B) capacitor&#10;C) EEPROM back up&#10;D) pulse generator

Accepted Answer

The internal ECM (Electronic Control Module) battery is used to ensure that the non-volatile RAM (NV-RAM) in Caterpillar ADEMS (Advanced Diesel Engine Management System) is not lost if the vehicle batteries become disconnected. This internal battery provides power to preserve the memory.

Question 3

Technician A says that a flash memory chip may not be removed from a current Caterpillar ADEM ECM. Technician B says that the ADEM flash memory chip can be flashed with new programming. Who is right?&#10;A) Technician A only&#10;B) Technician B only&#10;C) Both A and B&#10;D) Neither A nor B

Accepted Answer

Technician A is correct because the flash memory chip is typically not removable from the ECM. Technician B is also correct because the flash memory chip can be updated or "flashed" with new programming.

Question 4

What is another way of describing Caterpillar SoftCruise?&#10;A) closed loop, hard cruise&#10;B) smart cruise&#10;C) progressive shifting logic driven&#10;D) autopilot

Accepted Answer

Caterpillar SoftCruise is a technology that allows for smoother operation and control, making "smart cruise" a fitting description.

Question 5

Which of the following is true concerning the Caterpillar ADEM personality module in engines built since EPA MY 2004?&#10;A) not reprogrammable&#10;B) cannot be separated from the ADEM ECM&#10;C) contains the master program for engine management&#10;D) no longer required in Cat ADEM

Accepted Answer

The answer of Which of the following is true concerning...

Question 6

What is Caterpillar ID?&#10;A) engine identification&#10;B) software identification&#10;C) driver information display&#10;D) driver identity software

Accepted Answer

Caterpillar ID refers to the driver information display used in Caterpillar machinery.

Question 7

When Caterpillar fuel injector actuators are energized by the ECM drivers, voltage peaks at:&#10;A) 5 V-DC&#10;B) 8 V-DC&#10;C) 12 V-DC&#10;D) + 108 V-DC

Accepted Answer

Caterpillar fuel injector actuators are energized by the ECM drivers with voltage peaks at +108 V-DC. This high voltage is necessary to quickly open the injector against the high pressure in the fuel system.

Question 8

When Caterpillar use the term flash programming, what is being referred to?&#10;A) setting the injector codes&#10;B) any reprogramming operation&#10;C) downloading Cat ID info&#10;D) uploading FIS info

Accepted Answer

Flash programming in the context of Caterpillar machinery refers to the process of reprogramming the software within the machine's electronic control modules (ECMs). This can include updates to the operating system, calibration updates, or changes to the machine's performance characteristics. It is not limited to a specific operation like setting injector codes, downloading Cat ID info, or uploading FIS info.

Question 9

Which of the following will immediately trigger the Caterpillar ADEM diagnostic recorder?&#10;A) driver toggle switch&#10;B) engine shutdown&#10;C) connecting an EST&#10;D) fault code

Accepted Answer

Fault code will immediately trigger the Caterpillar ADEM diagnostic recorder.

Question 10

What has to be used to read a Caterpillar code on the dash CEL?&#10;A) ignition key&#10;B) cruise switches&#10;C) stalk switch&#10;D) diagnostic fork

Accepted Answer

Cruise switches are used to read Caterpillar codes on the dash Check Engine Light (CEL). By manipulating the cruise control switches in a specific manner, one can access the diagnostic mode to read the fault codes directly from the dash, without the need for specialized diagnostic tools.

Deck 43: Caterpillar Engine Management Systems