AUTOMOTIVE TECHNOLOGY-NATEF TASK SHEETS
6th Edition
ISBN: 9780135257418
Author: Halderman
Publisher: PEARSON
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Chapter 30, Problem 5CQ
A warped aluminum cylinder head can be restored to useful service by _____________.
- a. grinding the gasket surface and then align honing the camshaft bore
- b. heating it in an oven at 500°F with shims under each end, allowing it to cool, and then machining it
- c. heating it to 500°F for five hours and cooling it rapidly before final machining
- d. machining the gasket surface to one-half of the warped amount and then heating the head in an oven and allowing it to cool slowly
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dx
(σ(x)) + b(x) = 0
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Hooke's law
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axial stress in the rod.
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An elastic bar of the length L and cross section area A is rigidly attached
to the ceiling of a room, and it supports a mass M. Due to the
acceleration of gravity g the rod deforms vertically. The deformation of
the rod is measured by the vertical displacement u(x) governed by the
following equations:
dx
(σ(x)) + b(x) = 0
PDE
σ(x) = Edx
du
Hooke's law
(1)
b(x) = gp=
body force per unit volume
where E is the constant Young's modulus, p is the density, and σ(x) the
axial stress in the rod.
g
* I u(x)
L
2
Chapter 30 Solutions
AUTOMOTIVE TECHNOLOGY-NATEF TASK SHEETS
Ch. 30 - What is meant by the term crossflow head?Ch. 30 - Prob. 2RQCh. 30 - What is the recommended cylinder head...Ch. 30 - What are the advantages of using four valves per...Ch. 30 - How is valve stem-to-guide clearance measured?Ch. 30 - Cylinder heads with four valves flow more air than...Ch. 30 - Two technicians are discussing a Hemi engine....Ch. 30 - Technician A says that an Audi five-valve engine...Ch. 30 - The gasket surface of a cylinder head, as measured...Ch. 30 - A warped aluminum cylinder head can be restored to...
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