DeGarmo's Materials and Processes in Manufacturing
12th Edition
ISBN: 9781118987674
Author: J. T. Black, Ronald A. Kohser
Publisher: WILEY
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Chapter 32, Problem 11RQ
To determine
The statistical method to find the optimum rotational speed.
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1.
The figure shows a car jack to support 400kg (W=400kg). In the drawing, the angle (0) varies
between 15 and 70 °. The links are machined from AISI 1020 hot-rolled steel bars with a
minimum yield strength of 380MPa. Each link consists of two bars, one on each side of the
central bearings. The bars are 300mm in length (/) and 25 mm in width (w). The pinned ends
have the buckling constant (C) of 1.4 for out of plane buckling. The design factor (nd) is 2.5.
(1) Find the thickness (t) of the bars and the factor of safety (n).
(2) Check if the bar is an Euler beam.
D
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UNIVERSIDAD NACIONAL DE SAN ANTONIO ABAD DEL CUSCO
PRIMER EXAMEN PARCIAL DE MECÁNICA DE FLUIDOS I
............ Cusco, 23 de setiembre de 2024
AP. Y NOMBRES: ........
1.- Para el tanque de la figura:
a) Calcule la profundidad de la hidrolina si la profundidad del agua es de 2.8 m y el
medidor del fondo del tanque da una lectura de 52.3kPa.
b) Calcule la profundidad del agua si la profundidad de la hidrolina es 6.90 m y el medidor
de la parte inferior del tanque registra una lectura de 125.3 kPa.
Hidrolina
Sp=0.90
Abertura
Agua
sup suge to but amulor quit y
2.- Calcule la magnitud de la fuerza resultante sobre
el área A-B y la ubicación del centro de presión.
Señale la fuerza resultante sobre el área y
dimensione su ubicación con claridad.
3.5 ft
12 in:
Oil
(38-0.93)
14 in
8 in
Chapter 32 Solutions
DeGarmo's Materials and Processes in Manufacturing
Ch. 32 - Why are surface processes so important?Ch. 32 - What are some of the factors that should be...Ch. 32 - How is the surface and its integrity altered by...Ch. 32 - Two surfaces can have the same microinch roughness...Ch. 32 - What limits the resolution of a stylus-type...Ch. 32 - Prob. 6RQCh. 32 - Prob. 7RQCh. 32 - What are some common abrasive media used in...Ch. 32 - Prob. 9RQCh. 32 - Why might there be an optimum fill level in barrel...
Ch. 32 - Prob. 11RQCh. 32 - Prob. 12RQCh. 32 - Prob. 13RQCh. 32 - What are some of the mechanisms of alkaline...Ch. 32 - Prob. 15RQCh. 32 - In view of its many attractive features, why has...Ch. 32 - Prob. 17RQCh. 32 - Prob. 18RQCh. 32 - Prob. 19RQCh. 32 - What are some of the functions of a prime coat in...Ch. 32 - Prob. 21RQCh. 32 - Prob. 22RQCh. 32 - What are some of the attractive features of...Ch. 32 - Prob. 24RQCh. 32 - Prob. 25RQCh. 32 - Prob. 26RQCh. 32 - Prob. 27RQCh. 32 - What are the attractive properties of hard chrome...Ch. 32 - Prob. 29RQCh. 32 - Prob. 30RQCh. 32 - Prob. 31RQCh. 32 - When anodizing aluminum, what features determine...Ch. 32 - Prob. 33RQCh. 32 - Prob. 34RQCh. 32 - What types of particulate composites can be...Ch. 32 - Prob. 36RQCh. 32 - Prob. 37RQCh. 32 - How and why are burrs made by the milling process?...Ch. 32 - Prob. 39RQCh. 32 - What are the effects of stress level, surface...Ch. 32 - What effect would abrupt surface changes, such as...Ch. 32 - Prob. 4CSCh. 32 - Prob. 5CS
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