?Describe how the free bend test is performed.

What will be an ideal response?


?The 1 in. (25 mm) strips of the finished weld are cut out using a saw or thermal cutting process.  The strips are placed in a vise and bent using a ball-peen hammer until the root of the weld is stretched,Figure 19-5.  Observe the root of the weld to see if the weld had complete fusion.

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Potential or voltage transformers are _____.

a. buck-and-boost transformer b. three-phase transformers c. control transformers d. single-phase transformers

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Which of the following is a true statement about the Peng-Robinson parameters a andb?

A. The b variable is ultimately a function of universal physical constants and so has the same value for all compounds. B. The a variable can have units of L•J/kmol•mol C. The a variable is calculated by 27/64 (R^2 T_c^2)/P^2 D. The b variable has dimensions of amount of substance per length to the third power. E. None of these statements are true.

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The ____________________ of a relay or contactor must make good direct contact when energized for the device to function properly.

Fill in the blank(s) with the appropriate word(s).

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When viewed over the top line, dairy goats should be which of the following?

a. Wedge shaped c. Muscled b. Thick d. All answers

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