What electrical quantity cannot be changed by a transformer?
A. Voltage
B. Current
C. Impedance
D. Frequency
Answer: D
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Caustic chemicals can burn through cloth and skin.
Answer the following statement true (T) or false (F)
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The additional crosshairs positioned a precise distance above and below the center horizontal crosshair on a transit telescope are called
a. back sights. b. stadia lines. c. leveling rods. d. telescopes.
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____ diodes are used to provide voltage regulation.
A. Regulating B. Zener C. Photo D. Light-emitting
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The ring around the 6GR all-position pipe is there to ________ the operation
A) Restrict B) Balance C) Hold heat for D) Improve E) None of the above
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