NEC® Article __________ provides many installation requirements for overcurrent protection devices.
a. 210
b. 230
c. 250
d. None of the above
d. None of the above
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Indicate the sequence of steps that must be taken to determine level by measuring weight starting with 1._____ Use the formula 
_____ Weigh the container_____ Use the formula 
_____ Weigh the container with the contents_____ Use the formula W = Measured Weight - Container Weight
What will be an ideal response?
Most lumber used in building construction is visually graded. The traditional visual grading was done by trained graders, who would examine each lumber member for the straightness of grain and the number and size of defects (knots, shakes, and splits) and mark the appropriate grade on the member based on visual assessment. Recently, this procedure has been replaced by an alternative procedure.
What is this new procedure called, and what is the fundamental difference between the new and the traditional procedure? What will be an ideal response?
The set and travel for all the lines in an equal-spread offset are _____.
a. always different b. usually different c. always the same d. multiplied by 0.4142
What is used to clean the surfaces of the heat exchanger?
A) wire brush B) razor blade C) abrasive sponge D) soft cloth