?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
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.
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).
When viewed over the top line, dairy goats should be which of the following?
a. Wedge shaped c. Muscled b. Thick d. All answers