Automotive Technology (Custom)
6th Edition
ISBN: 9781337495356
Author: ERJAVEC
Publisher: Cengage
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Chapter 24, Problem 8ASRQ
Technician A says that the enable criteria are the criteria that must be met before the PCM completes a monitor test. Technician B says that a drive cycle includes operating the vehicle under specific conditions so that a monitor test can be completed. Who is correct?
- Technician A
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9.1. A pneumatic PI temperature controller has an output pressure of 10 psig when the set point
and process temperature coincide. The set point is suddenly increased by 10°F (i.e., a step
change in error is introduced), and the following data are obtained:
Time, s
psig
0-
10
0+
8
20
7
60
90
5
3.5
Determine the actual gain (psig per degree Fahrenheit) and the integral time.
2. A unit-step change in error is introduced into a PID controller. If Ke
TD = 0.5, plot the response of the controller P(t).
=
=10, 1, and
A distribution of values is normal with a mean of 211
and a standard deviation of 50.4.
Find the probability that a randomly selected value is
between 59.8 and 155.6.
P(59.8 X 155.6) =
Enter your answer as a number accurate to 4 decimal
places. Answers obtained using exact z-scores or z-
scores rounded to 3 decimal places are accepted.
Chapter 24 Solutions
Automotive Technology (Custom)
Ch. 24 - Describe the difference between an open- and a...Ch. 24 - Explain the use and importance of system strategy...Ch. 24 - Describe an OBD II warm-up cycle.Ch. 24 - Explain the trip and drive cycle in an OBD II...Ch. 24 - Describe how engine misfire is detected in an OBD...Ch. 24 - Describe the purpose of having both upstream and...Ch. 24 - Briefly describe the monitors in an OBD II system.Ch. 24 - Type B engine misfires are excessive if the...Ch. 24 - The monitor system checks the action of the can...Ch. 24 - The monitor system has a(n) and test to check the...
Ch. 24 - The fuel monitor checks fuel trim and fuel trim.Ch. 24 - Which sensor is used for misfire monitoring on OBD...Ch. 24 - Which of the following statements is not true?...Ch. 24 - A computer is capable of doing all of the...Ch. 24 - Which of the following memory circuits is used to...Ch. 24 - Technician A says that the oxygen sensor provides...Ch. 24 - While discussing OBD II systems: Technician A says...Ch. 24 - While discussing the catalyst efficiency monitor:...Ch. 24 - While discussing monitoring systems: Technician A...Ch. 24 - While discussing the comprehensive monitoring...Ch. 24 - Prob. 6ASRQCh. 24 - While discussing diagnostic procedures: Technician...Ch. 24 - Technician A says that the enable criteria are the...Ch. 24 - While discussing PCM monitor tests: Technician A...Ch. 24 - While discussing the misfire monitor: Technician A...
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