EBK 3I-EBK: WELDING PRINCIPLES & APPLIC
8th Edition
ISBN: 9780176919764
Author: Jeffus
Publisher: VST
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Chapter 16, Problem 21R
Why must the tube of a flow meter be vertical?
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1. A simply supported shaft is shown in Figure 1 with wo = 25 N/cm and M = 20 N cm. Use
singularity functions to determine the reactions at the supports. Assume EI = 1000 kN cm².
M
Wo
0 10 20 30 40 50 60 70
80 90
100 110 cm
Figure 1 - Problem 1
2. A support hook was formed from a rectangular bar. Find the stresses at the inner and outer
surfaces at sections just above and just below O-B.
210 mm
A distillation column with a total condenser and a partial reboiler is separating ethanol andwater at 1.0 atm. Feed is 0.32 mol fraction ethanol and it enters as a saturated liquid at 100mol/s on the optimum plate. The distillate product is a saturated liquid with 80 mol% ethanol.The condenser removes 5615 kW. The bottoms product is 0.05 mol fraction ethanol. AssumeCMO is valid.(a) Find the number of equilibrium stages for this separation. [6 + PR](b) Find how much larger the actual reflux ratio, R, used is than Rmin, i.e. R/Rmin. [3]Note: the heats of vaporization of ethanol and water are λe = 38.58 and λw = 40.645
Chapter 16 Solutions
EBK 3I-EBK: WELDING PRINCIPLES & APPLIC
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Ch. 16 - How can the end of a tungsten electrode be shaped?Ch. 16 - Why should a grinding stone that is used for...Ch. 16 - Why should the grinding marks run lengthwise on...Ch. 16 - What are three ways of breaking off the...Ch. 16 - What is the correct color to use on the balled end...Ch. 16 - Why should the torch be as cool as possible?Ch. 16 - What will happen to a water-cooled torch cable if...Ch. 16 - Why must shielding gas hoses not be made from...Ch. 16 - What materials can be used to make nozzles?Ch. 16 - What problem can a long nozzle cause to the...Ch. 16 - Why must the tube of a flow meter be vertical?Ch. 16 - What is the heat distribution with DCEN welding...Ch. 16 - What is the heat distribution with DCEP welding...Ch. 16 - What is the heat distribution with AC welding...Ch. 16 - Why must AC welding power use high frequencies to...Ch. 16 - Why are argon and helium known as inert gases?Ch. 16 - Why is argon's ease of ionization a benefit?Ch. 16 - What makes helium difficult to use for manual...Ch. 16 - What are the benefits of adding hydrogen to argon...Ch. 16 - What is the purpose of a hot start?Ch. 16 - Using Table 16-3, determine the gas post flow time...Ch. 16 - What functions can a remote control provide the...Ch. 16 - Using Table 16-4, determine the minimum gas flow...
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