?What can be added to FCAW electrode fluxes to affect the arc resistance?
A. ?deoxidizers
B. ?arc stabilizers
C. ?alloying elements
D. ?slag formers
Answer: B
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Define the term PLC.
What will be an ideal response?
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What problems may result if the taps are not connected properly on a three-phase transformer or bank of transformers?
What will be an ideal response?
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Air in a hydronic system can cause ____.
A. reduced water circulation B. increased efficiency C. corrosion D. both a and c
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A signal 
is sampled at 4 times its Nyquist rate. Another signal 
is sampled at the same rate. What is the smallest value of 
which is greater than 10 and for which the samples of 
are exactly the same as the samples of 
What will be an ideal response?
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