Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 12, Problem 2MC
To allow the engine to run on the Atkinson cycle, Toyota’s VVT-i system causes the-
- intake valve to open early
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11-68. The rectangular plate shown is subjected to a uniaxial
stress of 2000 psi. Compute the shear stress and the tensile
developed on a plane forming an angle of 30° with the longitud
axis of the member. (Hint: Assume a cross-sectional area of unity)
2000 psi
2000 psi
hp
11-70. A shear stress (pure shear) of 5000 psi exists on an element.
(a) Determine the maximum tensile and compressive stresses
caused in the element due to this shear.
(b) Sketch the element showing the planes on which the
maximum tensile and compressive stresses act.
11-20. An aluminum specimen of circular cross section, 0.50 in.
in diameter, ruptured under a tensile load of 12,000 lb. The plane
of failure was found to be at 48° with a plane perpendicular to the
longitudinal axis of the specimen.
(a) Compute the shear stress on the failure plane.
(b) Compute the maximum tensile stress.
(c) Compute the tensile stress on the failure plane.
hp
Chapter 12 Solutions
Automotive Technology
Ch. 12 - Explain staged and continuously variable value...Ch. 12 - Prob. 2SACh. 12 - Define valve margin.Ch. 12 - What usually causes warpage in an aluminum cylin...Ch. 12 - What are the two ways pushrods can be checked for...Ch. 12 - True False? Fiats MultiAir system relies on...Ch. 12 - True False? Camshaft straightness is checked using...Ch. 12 - Which of the following is not true of knurling? It...Ch. 12 - To allow the engine to run on the Atkinson cycle,...Ch. 12 - To ensure proper seating of the valve, the valve...
Ch. 12 - Many engines with WT have a phaser mounted to the...Ch. 12 - Multiple valve engines tend to be more efficient...Ch. 12 - Which of the following is not a type of valve...Ch. 12 - What type of valve lifter automatically...Ch. 12 - Prob. 8MCCh. 12 - While discussing the reasons for resurfacing a...Ch. 12 - While inspecting the timing gears of an engine:...Ch. 12 - Technician A says that positive valve stem seals...Ch. 12 - Prob. 4ASRQCh. 12 - Technician A says an engine may use one or more...Ch. 12 - Technician A says it is not necessary to measure...Ch. 12 - While discussing the Valvetronic system:...Ch. 12 - While checking a hydraulic phaser after the...Ch. 12 - While servicing a pair of aluminum cylinder heads:...Ch. 12 - While discussing camshafts Technician A says valve...
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