18. Identification & Diagnosis of Malfunctions 

Directions: Read each statement carefully and mark the response that best answers the question. 

1. The lubrication system lubricates, cools, and cleans the:
2. The __________ is a series of connected mechanical parts which take the power generated by the engine and applies it to the tractor’s drive wheels.
3. A defect in the braking system can interfere with a vehicle’s ability to:
4. This system is what connects the tractor and trailer.
5. When looking over the suspension system, you need to check for cracked, loose, or:
6. If your exhaust temperature is too high, what can get damaged?
7. When checking the coupling system, you need to:
8. The suspension system allows the axles to move up and down in response to ground changes without seriously affecting the load. __________ allows the stress of road shocks to be distributed evenly throughout the frame.
9. To keep vehicle systems in good operating condition:
10. As part of an oil change, the condition of the __________ should be assessed. This item can help prolong the life of the engine by removing contaminants as oil passes through it.

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