Which of the Following Is an Example of the Alarm

question 21

Multiple Choice

Which of the following is an example of the alarm reaction stage of the general adaptation syndrome?

• A) A burst of energy enables Hassan to run fast when he sees a skunk in his path.
• B) Bill collapses by the side of the road after the marathon.
• C) Sheila almost drowned, but she was able to keep her head out of the water and focus on swimming to shore.
• D) William sleepwalks when he eats too much candy before bed.

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Definitions:

ECU

Stands for Engine Control Unit, a computer within a vehicle that controls various aspects of the engine's operation, including timing, air/fuel mixture, and more.

Truck System

A comprehensive arrangement of components and mechanisms which constitute the functionality of a truck, including its engine, transmission, drivetrain, and electronics.

Truck Data Bus System

A digital communication network in trucks that carries data between various electronic control units (ECUs).

SAE J1939

Covers both the hardware and software protocols used on the current CAN 2.0 platform for medium-/heavy-truck data bus. A J1939 truck data bus is accessed by connecting to an EST to a nine-pin Deutsch black (pre-2014) or green (post-2014) connector. Post-2014 Volvo-Mack applications require a J1962 connector.