In closed-loop control applications it is necessary to convert some physical property into an electrical signal. The components that carry out this conversion are known as ____.
a. amplifiers
b. armatures
c. signal processors
d. transducers
d. transducers
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Find the average thickness, in inches, of several pieces of sheet metal that measure 0.313 inches, 0.267 inches, 0.417 inches, 0.135 inches, 0.547 inches, 0.226 inches, and 0.343 inches.
What will be an ideal response?
____ are materials that permit electrons to flow through them easily.
a. Conductors b. Insulators c. Semiconductors d. Liquids
Hygroscopic water in the soil:
A. is tightly absorbed to the soil particle. B. is held in the soil's crystalline structure. C. is the first water the plant will take up. D. drains out of the soil from gravitational pull.
In a capacitive AC circuit, the relationship between current and voltage is described as ____ degrees out of phase.
A. 30 B. 60 C. 90 D. 180