Active-high PLC modules are referred to as __________ input modules.
A. sourcing
B. sinking
Answer: B
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The radius of a circle is defined as _____.
a. the length from one edge of the circle to the other edge through the center point b. the distance around the circle c. the distance from the center point to the edge of the circle d. a closed curved line whose points are all the same distance from its center
Compute the reactions at supports A and E of the three-hinged parabolic arch in Figure P6.23. Next compute the shear, axial load, and moment at points B and D, located at the quarter points.
What source of information contains important safety information about hazardous materials?
A) SAE B) MSDS C) NATEF D) HEPA
One of the advantages of an SSR over an EMR is its _____.
a. low initial cost b. resistance to effects of temperature c. ability to stand surge currents d. response time