Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Textbook Question
Chapter 43, Problem 8RQ
What is checked during a stall test?
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13.38 Consider the attic of a home located in a hot climate.
The floor of the attic is characterized by a width of
L₁ = 8 m while the roof makes an angle of 0 = 30° from
the horizontal direction, as shown in the schematic.
The homeowner wishes to reduce the heat load to the
home by adhering bright aluminum foil (ε = 0.07) onto
the surfaces of the attic space. Prior to installation of
the foil, the surfaces are of emissivity & = 0.90.
Attic
A2, 82, T2 0 = 30°
A1, E1, T₁
土
L₁ = 8 m
(a) Consider installation on the bottom of the attic
roof only. Determine the ratio of the radiation heat
transfer after to before the installation of the foil.
(b) Determine the ratio of the radiation heat transfer
after to before installation if the foil is installed
only on the top of the attic floor.
(c) Determine the ratio of the radiation heat transfer if
the foil is installed on both the roof bottom and the
floor top.
13.1
Determine F2 and F2 for the following configura-
tions using the reciprocity theorem and other basic
shape factor relations. Do not use tables or charts.
(a) Small sphere of area A, under a concentric hemi-
sphere of area A₂ = 3A₁
A₂
A1
(a)
(b) Long duct. Also, what is F₁₂?
A₂
Αν
(b)
(c) Long inclined plates (point B is directly above the
center of A₁)
B
100 mm
A₂
- 220 mm
(c)
(d) Long cylinder lying on infinite plane
+
A₁
Az
(d)
(e) Hemisphere-disk arrangement
-A₂, hemisphere,
diameter D
A₂
A₁, disk,
diameter D/2
(e)
(f) Long, open channel
1 m
AA₂
2 m
(f)
(g) Long cylinders with A₁ = 4A₁. Also, what is F₁₂?
-D₁
A1
-A₂
-D2
(e)
(h) Long, square rod in a long cylinder. Also, what
is F22?
w=D/5
18
A₁
-A2
(h)
-D
13.9 Determine the shape factor, F12, for the rectangles
shown.
6 m
1
3 m
6 m
1 m
2
6 m
1
0.5 m
2
1 m
(a) Perpendicular rectangles
without a common edge.
-1 m.
(b) Parallel rectangles of
unequal areas.
Chapter 43 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 43 - What is the most probable cause of a low fluid...Ch. 43 - What does milky colored ATF indicate?Ch. 43 - What do varnish or gum deposits on the dipstick...Ch. 43 - Typically during a pressure test, the pressure...Ch. 43 - What should you do if a valve does not move freely...Ch. 43 - Which of the following is the most likely cause...Ch. 43 - Ifa transmission does not have a dipstick, how do...Ch. 43 - What is checked during a stall test?Ch. 43 - When should the ATF level be checked on most...Ch. 43 - List five reasons for replacing a torque...
Ch. 43 - Pressure readings reveal possible problems in...Ch. 43 - Which of the following is a probable cause for a...Ch. 43 - When rebuilding an automatic transmission, which...Ch. 43 - Explain why oil circuit diagrams are invaluable...Ch. 43 - Explain how a plugged fluid cooler can cause a...Ch. 43 - Technician A says that a prerequisite to accurate...Ch. 43 - While discussing proper band adjustment...Ch. 43 - Technician A says that if the shift for all...Ch. 43 - Technician A says that the only positive way to...Ch. 43 - Technician A says that delayed shifting can be...Ch. 43 - While checking the condition of a cars ATF:...Ch. 43 - While discussing the results of an oil pressure...Ch. 43 - While discussing a pressure test: Technician A...Ch. 43 - While checking the engine and transmission mounts...Ch. 43 - While discussing the cause of aerated fluid in a...
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