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CHAPTER 18 AUTO EXAM QUESTIONS AND ANSWERS 100% PASS
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CHAPTER 18 AUTO EXAM QUESTIONS AND ANSWERS 100% PASS What two materials can cylinder heads be made of ? - Aluminum or cast iron What are the two types of valve guides? - Integral and replaceable inserts If a car decelerating on a hill has exhaust smoke, what are two possible causes? - Faulty in...

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  • December 22, 2024
  • 2
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • chapter 18 auto exam questions and answers 100 pa

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  • AUT 101-120
  • AUT 101-120

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KatelynWhitman

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CHAPTER 18 AUTO EXAM QUESTIONS AND
ANSWERS 100% PASS


What two materials can cylinder heads be made of ? - ✔✔Aluminum or cast iron


What are the two types of valve guides? - ✔✔Integral and replaceable inserts


If a car decelerating on a hill has exhaust smoke, what are two possible causes? - ✔✔Faulty intake valve

seal pulled oil into cylinder from low pressure of the intake stroke. Oil is not being diluted with fuel.


The ________ effect is the term for the reason that a vacuum can happen at the bottom of the exhaust

valve guide. - ✔✔Atomizer


What are three types of valve guide seals? - ✔✔umbrella, o-ring, positive


Up to what temperature is a low-quality valve guide seal good? A high-quality seal? - ✔✔(Lower 250°F)

(High 440°F)


What is the name of the process that hardens integral valve seats? - ✔✔Tempering or annealing


What can happen to a valve that has a margin that is too thin ? - ✔✔It can overheat and valve will get

burned


Why would a spring have inner and outer coils? - ✔✔two springs clockwise and counter clockwise help

prevent the spring to bend inward.


What is the name of the type of rocker arm stud that does not require a valve adjustment? - ✔✔Positive

stop used with hydraulic lifters




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