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AUT 101-Chapter 4 Exam Questions and Answers 100% Pass $12.49
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AUT 101-Chapter 4 Exam Questions and Answers 100% Pass
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1. Under the CAFÉ standards, for what are vehicles tested? - Under CAFÉ standards, different models from each manufacturer are tested for the number of miles they can be driven on a gallon of gas. 2. Explain the four strokes of the internal combustion engine. - In a four-stroke cylinder engine,...

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  • 22 de diciembre de 2024
  • 8
  • 2024/2025
  • Examen
  • Preguntas y respuestas

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  • aut 101 chapter 4 exam questions and answers 100

Escuela, estudio y materia

  • AUT 101-120
  • AUT 101-120

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KatelynWhitman

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AUT 101-Chapter 4 Exam Questions and Answers
100% Pass


1. Under the CAFÉ standards, for what are vehicles tested? - ✔✔Under CAFÉ standards, different

models from each manufacturer are tested for the number of miles they can be driven on a gallon of gas.


2. Explain the four strokes of the internal combustion engine. - ✔✔In a four-stroke cylinder engine, the

piston moves through four different movements or strokes to complete one cycle. The four strokes are the

intake, compression, power and exhaust strokes. On the intake stroke, the piston moves downward, and

a charge of air-fuel mixture is introduced into the cylinder. As the piston travels upward, the air-fuel

mixture is compressed in preparation for burning. Just before the piston reaches the top of the cylinder,

ignition occurs and combustion starts. The pressure of expanding gases forces the piston downward on

its power stroke. When it reciprocates, or moves upward again, the piston is on the exhaust stroke.

During the exhaust stroke, the piston pushes the burned gases out of the cylinder.


3. In addition to the battery, what does the charging system include? - ✔✔AC generator, voltage

regulator, indicator light and the necessary wiring.


4. Which of the following is not a common emission control system? - ✔✔EVAP


5. Automatic transmission use a - ✔✔torque converter instead of a clutch to transfer power from the

flywheel to the transmission's input shaft.


6. Which of the following is not one of the strokes of a four-cycle engine? - ✔✔Ignition


7. Technician A says that the PCV system is designed to limit CO emissions. Technician B says that

catalytic converters reduce HC emissions at the tailpipe. Who is correct? - ✔✔Technician B




Created by Katelyn Whitman © 2025, All Rights Reserved.

, 2|Page


8. Which is not a common automotive fuel? - ✔✔Hydrogen


9. What does the valve train do? - ✔✔It opens and closes the intake and exhaust ports of each cylinder


10. Technician A says that liquid cooling an engine helps to maintain a consistent operating temperature.

Technician B says that oil is circulated through the cooling system to remove heat from the engine's parts.

Who is correct? - ✔✔Technician A


11. An engine will not start and no spark is found at the spark plugs when the engine is turned over by

the starter. Technician A says that the problem is probably the battery. Technician B says that the ignition

system is most likely at fault. Who is correct? - ✔✔Technician B


12. Which emission control system introduces exhaust gases into the intake air to reduce the formation of

NOx in the combustion chamber? - ✔✔EGR


13. Technician A says that many vehicles use an AC generator as the charging unit. Technician B says that

all vehicles use an alternator as the charging unit. Who is correct? - ✔✔Technician B


14. Technician A says that a transaxle delivers torque to the front and the rear drive axles. Technician B

says that a transaxle is most commonly found in 4WD pickups and SUVs. Who is correct? - ✔✔Neither A

nor B


15. Which of the following is not part of the running gear? - ✔✔Differential


16. Which of the following statements about anybody construction is not true? - ✔✔All unibodies are

constructed from steel.


17. Which type of transmission uses pulleys to change engine speed? - ✔✔Continuously variable


18. Which of the following components are used to dampen the upward and downward movement of a

vehicle's springs? - ✔✔Shock absorbers




Created by Katelyn Whitman © 2025, All Rights Reserved.

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