Explain why the filler rod end must be kept inside the protective zone.
What will be an ideal response?
The filler rod end must be kept inside the protective zone of the shielding gas. The end of the filler rod is hot, and if it is removed from the gas protection, it will oxidize rapidly. The oxide will then be added to the molten weld pool.
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Obtain the exponential Fourier series for the signal in Fig. 17.54.
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What are typical measurements made with a dial indicator?
What will be an ideal response?
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What does a pozzolanic material consist of?
What will be an ideal response?
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When a signal person working with a forklift operator stands with both hands clasped in front of them, this indicates that the operator should _____.
a. dog everything b. tilt the mast forward c. lower the tines d. raise the tines
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