Reactive power is always _____.
a. equal to true power
b. 90° out of phase with true power
c. measured in ohms
d. responsible for performing most of the work in a circuit
b. 90° out of phase with true power
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NEC Article 430, Part VII covers _____.
a. hazardous locations b. overload protection c. motor controllers d. enclosures
The type of line that consists of a centerline having two dark, parallel lines, drawn at right angles to each end is:
A. Symmetry line B. Dimension line C. Cutting plane line D. Chain line
Suppose pistons A (diameter 1.25 inches) and B (diameter 0.75 inches) are connected by a simple hydraulic system. How much force does B exert if the input force on A is 3 pounds?
What will be an ideal response?
At one time, the entire wood industry was based on the natural growth of trees
Indicate whether the statement is true or false