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Heavy Duty Truck Systems - Chapter 27 Graded A+

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Heavy Duty Truck Systems - Chapter 27 Graded A+ What is the function of the truck's cooling system? The cooling system regulates the engine temperature by dissipating excess heat and preventing overheating. How does a truck's air conditioning system operate? The air conditioning syste...

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  • September 15, 2024
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  • 2024/2025
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  • Heavy Duty Truck Systems -
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Heavy Duty Truck Systems - Chapter 27
Graded A+
What is the function of the truck's cooling system?


✔✔ The cooling system regulates the engine temperature by dissipating excess heat and

preventing overheating.




How does a truck's air conditioning system operate?


✔✔ The air conditioning system uses refrigerant to absorb heat from the cabin and release it

outside, providing a comfortable temperature inside.




What role does the truck’s hydraulic system play?


✔✔ The hydraulic system operates various components like brakes, steering, and lift

mechanisms by using hydraulic fluid to transfer force.




How can you diagnose a problem with a truck’s electrical system?


✔✔ To diagnose electrical system issues, check for blown fuses, test the battery and alternator,

and inspect wiring and connections for damage.




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, What is the purpose of the truck’s differential in the drivetrain?


✔✔ The differential allows the wheels to rotate at different speeds, which is essential for smooth

turning and handling.




How does the truck’s exhaust system reduce emissions?


✔✔ The exhaust system uses components like catalytic converters and mufflers to reduce

harmful emissions and control noise.




What is a common sign that a truck’s transmission may be failing?


✔✔ Common signs of a failing transmission include slipping gears, unusual noises, and

difficulty shifting.




What should be checked during a truck’s pre-trip inspection of the braking system?


✔✔ During a pre-trip inspection, check for brake pad wear, brake fluid levels, and ensure that

the braking system operates effectively without leaks.




What is the function of the truck’s powertrain?


✔✔ The powertrain transmits power from the engine to the wheels, including components such

as the transmission, driveshaft, and differential.

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