What acronym does Mercedes Benz use for the engine controller module used on pre-2007 versions of MB-900 and MB-4000 engines?
A. ECM
B. ECU
C. VCU
D. PLD
Answer: D
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What is meant by handoff interval and handoff region? Explain their usefulness with appropriate diagrams.
What will be an ideal response?
Which of the following is NOT one of the three stages of a vehicle computer, processing cycle?
A. data input B. data processing C. outputs D. multiplexing
A technician measures a return air temperature at the furnace of 70°F and a supply air temperature of 180°F on a furnace whose temperature rise is rated at 40°F - 60°F. The technician should
A) Increase the gas manifold pressure to reduce the temperature rise B) Leave it alone, it is working great C) Increase the airflow to reduce the temperature rise D) Decrease the airflow to reduce the temperature rise
What does the electronic pressure control (EPC) solenoid use to control mainline pressure?
A) Resistance B) Current C) Voltage D) Torque