The most common use of math in welding shops is for ____________________ and pricing.
Fill in the blank(s) with the appropriate word(s).
dimensioning
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All materials are elastic to some degree. It is desirable that certain parts of some designs compress when a load is applied to assist in making the part air- or watertight. The test results in the following table resulted from a test on a material known as Silon Q-177.
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(a) Plot the data on semilog paper.
(b) Using the method of least squares, find the equation of the line of best fit.
(c) Draw the line on the curve.
(d) Calculate the coefficient of correlation.
(e) What pressure should be applied to achieve a relative compression of 60%?
The temperature created when the arc is concentrated to form a plasma is about ____degrees Fahrenheit.
A. 1,000 B. 11,000 C. 43,000 D. 110,000
During testing, fluid leaks through a newly brazed joint. What may have occurred to cause this?
A) The fitting was heated before the pipe. B) The pipe was heated before the fitting. C) The pipe was cleaned immediately before brazing. D) The pipe was cleaned ½ in beyond the fitting.
Which of the following is NOT an advantage of GPS tracking devices?
A. helping drivers get the best route information B. real-time feedback to end users, including location, direction of travel, and speed C. sending alerts when an asset breaches a preset boundary on a map D. a reduction in insurance premiums