Bundle: Welding: Principles and Applications, 8th + MindTap Welding, 4 terms (24 months) Printed Access Card
8th Edition
ISBN: 9781337219426
Author: Larry Jeffus
Publisher: Cengage Learning
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Textbook Question
Chapter 14, Problem 8R
What is the purpose of the hot pass?
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The constant 180 N-m
counterclockwise couple acts on the L-shaped rod ABC, which
rotates freely in the vertical plane about the pin at A. At this
moment, the angular velocity of the rod is 2 rad/s
counterclockwise. Determine the angular acceleration of the rod
and the reactions at A in the position shown.
Answer: a=1.7 rad/s², Ax = 25.3 N, Ay = 603 N
180 N-m
1.2 m
24 kg
20 kg
B
1.0 m
Circular fins of uniform cross section, with diameterof 10 mm and length of 50 mm, are attached to a wallwith surface temperature of 350°C. The fins are made ofmaterial with thermal conductivity of 240 W/m·K, and theyare exposed to an ambient air condition of 25°C and the convectionheat transfer coefficient is 250 W/m2·K. Determinethe heat transfer rate and plot the temperature variation of asingle fin for the following boundary conditions:(d) Convection from the fin tip
i am very confused any help appriechated
Chapter 14 Solutions
Bundle: Welding: Principles and Applications, 8th + MindTap Welding, 4 terms (24 months) Printed Access Card
Ch. 14 - The ends of pipe are beveled at what angle?Ch. 14 - How wide should the metal surface be ground clear...Ch. 14 - According to the API code, pipes of the same...Ch. 14 - When cutting off a coupon, why should you catch a...Ch. 14 - How many tack welds are required for a pipe joint?Ch. 14 - Why are the ends of tack welds ground to a...Ch. 14 - Why must the root weld be started on a tack weld?Ch. 14 - What is the purpose of the hot pass?Ch. 14 - How much space must be left in the groove so there...Ch. 14 - What is another name for the cover pass?
Ch. 14 - What is the maximum acceptable depth of undercut...Ch. 14 - What type of weld would be used to join a socket...Ch. 14 - What is used to grind the ends of a tack weld to a...Ch. 14 - Why should you grind the starting point of the...Ch. 14 - What can be done if there is undercut along the...Ch. 14 - What should the gun angle be at when starting the...Ch. 14 - Why would it be a good idea to increase the...Ch. 14 - How much should the first cover pass weld overlap...Ch. 14 - Why does the gun angle have to be constantly...Ch. 14 - Why should the cover pass be kept small on 6G...
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