AUTOMOTIVE TECHNOLOGY TECH MANUAL
7th Edition
ISBN: 9781337794220
Author: ERJAVEC
Publisher: CENGAGE L
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Chapter 34, Problem 2ASRQ
To determine
The technician with correct approach while discussing tailpipe emissions and cylinder misfiring.
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5. (计算题)
Calculate the DOF of following mechanisms. If there are compound hinge, passive DOF or Redundant Constraint, please point
them out.
品
⑤A
(a) 凸轮拨杆机构
6.(计算题)
Calculate the DOF of following mechanisms. If there are compound hinge, passive DOF or Redundant Constraint, please point
them out.
E
D
A
B
C
F
A hot surface at 150°C is to be cooled by attaching 3-cm-long, 0.25-cm-diameter aluminum pin fins (k = 237 W/m-K) to it, with a center-
to-center distance of 0.6 cm. The temperature of the surrounding medium is 30°C, and the heat transfer coefficient on the surfaces is
35 W/m²K. Determine the rate of heat transfer from the surface for a 1-m × 1-m section of the plate. Also determine the overall
effectiveness of the fins.
0.6 cm
0.25 cm
The total rate of heat transfer is
kW.
The fin effectiveness is
Chapter 34 Solutions
AUTOMOTIVE TECHNOLOGY TECH MANUAL
Ch. 34 - A rich air-fuel ratio causes HC emissions to...Ch. 34 - What will result from too little EGR flow? And...Ch. 34 - What can result from a charcoal canister that is...Ch. 34 - What happens if a PCV valve is stuck in the open...Ch. 34 - Explain why the I/M 240 and similar tests are...Ch. 34 - How do you test the efficiency of a secondary AIR...Ch. 34 - List five common causes for high HC emissions.Ch. 34 - Describe carbon monoxide (CO) emissions in...Ch. 34 - An EGR valve that does not fully close can cause...Ch. 34 - A restricted catalytic converter can cause all of...
Ch. 34 - Which of the following statements about EVAP...Ch. 34 - As a catalytic converter begins to deteriorate,...Ch. 34 - How much pressure does a typical EVAP pressure...Ch. 34 - Which of the following exhaust gases is typically...Ch. 34 - Prob. 7MCCh. 34 - While discussing the proper way to test a...Ch. 34 - Prob. 2ASRQCh. 34 - While discussing catalytic converter diagnosis:...Ch. 34 - While discussing EGR valve diagnosis: Technician A...Ch. 34 - While discussing EGR valve diagnosis: Technician A...Ch. 34 - When discussing the diagnosis of a positive back...Ch. 34 - While diagnosing a PCV problem: Technician A says...Ch. 34 - Technician A says that the AIR system should pump...Ch. 34 - While discussing PCV system diagnosis: Technician...Ch. 34 - While discussing EVAP testing: Technician A says...
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