Automotive Systems Chapter 3 Automotive Technology A Systems Approach Answers
This Chapter has been updated, commenter William French, has been most generous. Please reference the updated answers below. Reminder to our readers, you should still check/verify the answers, before copying them.
1. The first sentence of your answer is 100% right. The second sentance is incorrect. (p. 38) The "A" in CAFE stands for average - they avereage the mpg for all models a manufacturer makes and that average must meet the standard. A manufacturer that does not meet the standard for a given model year faces penalties.
2. Nit picky, but i think you should change "an engine" to "the combustion chamber of an engine"
6. D - the text refers to the "power" not the "combustion" stroke
10. A - Technician B is incorrect because he says OIL is circulated through the cooling system, when we know it is COOLANT
11. B - It's probably not be the battery since the engine is turning over. There is no spark, and the spark is provided by the ignition system, so Tech B is correct.
14. D Tech A is wrong because tx's deliver power to the left and right front axels, and in the case of 4wd/awd also to a transfer case which then delivers that power to the rear diff. Tech B is incorrect because all? FWD vehicles use a transaxle and most 4WD pickups and suvs are based upon RWD driveline.
15. A - the differential is part of the drivetrain. Suspension is the first running gear item listed on p. 53
17. D - Older cars used a single coil for all cylinders so 1 is possible. pg 47 it says that today's systems have several coils - 1 for each spark plug or PAIR of sparkplugs so 4 or 2 coils in all on a 4 cylinder engine.
19. False - HEVs use regenerative braking to slow, but use conventional brakes to safely stop the vehicle (p.55-56)
20. A
21. C - Both seem correct to me. Did I miss something in B's statement?
24. C - After re-reading p.56, I think both statements are correct.
Previous Answers:
1. Under CAFE standards, Gas powered vehicles from all vehicle manufacturer are tested for fuel efficiency.Any vehicle that fails to meet CAFE standards will face heavy fines.
2. Internal combustion is the burning of fuel and air mixture in a combustion chamber such as an engine.
3. The charging system comprise of AC generator, voltage regulator, indicator light, and wirings.
4. EPA
5. C torque converter
6. is wrong question. all are part of the four stroke. compression, intake, exhaust, and combustion.
7. B
8. C
9. Valve train opens and closes the intake and exhaust ports.
10. C
11. A
12. B exhaust gas recirculation or EGR
13. C
14. C
15.Suspension
16. C
17. C
18. B
19. T
20. B
21. A
22. B
23. D
24. D.
25. D.
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Number 6 is D
ReplyDeletePlease people - do not rely on these answers. Fewer than 50% are correct.
ReplyDeleteThanks for the comment @william french. Feel free to post what you think are the correct answers. And I'll be sure to update the visitors to check the comments section for your answers.
ReplyDelete1. The first sentance of your answer is 100% right. The second sentance is incorrect. (p. 38) The "A" in CAFE stands for average - they avereage the mpg for all models a manufacturer makes and that average must meet the standard. A manufacturer that does not meet the standard for a given model year faces penalties.
ReplyDelete2. Nit picky, but i think you should change "an engine" to "the combustion chamber of an engine"
6. D - the text refers to the "power" not the "combustion" stroke
10. A - Technician B is incorrect because he says OIL is circulated through the cooling system, when we know it is COOLANT
11. B - It's probably not be the battery since the engine is turning over. There is no spark, and the spark is provided by the ignition system, so Tech B is correct.
14. D Tech A is wrong because tx's deliver power to the left and right front axels, and in the case of 4wd/awd also to a transfer case which then delivers that power to the rear diff. Tech B is incorrect because all? FWD vehicles use a transaxle and most 4WD pickups and suvs are based upon RWD driveline.
15. A - the differential is part of the drivetrain. Suspension is the first running gear item listed on p. 53
17. D - Older cars used a single coil for all cylinders so 1 is possible. pg 47 it says that today's systems have several coils - 1 for each spark plug or PAIR of sparkplugs so 4 or 2 coils in all on a 4 cylinder engine.
19. False - HEVs use regenerative braking to slow, but use conventional brakes to safely stop the vehicle (p.55-56)
20. A
21. C - Both seem correct to me. Did I miss something in B's statement?
24. C - After re-reading p.56, I think both statements are correct.
chapter 6 please....... i would be appriciated
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