An ________ displays a waveform and measures parameters such as amplitude, frequency, period, and duty cycle
Fill in the blank(s) with correct word
oscilloscope
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The total current in a parallel circuit is equal to the ____________________ of the currents in the separate components.
Fill in the blank(s) with the appropriate word(s).
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According to NEMA definitions, which of the following is a type of open motor?
a. Nonventilated b. Explosion-proof c. Weather-protected d. Water-to-air-cooled
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To increase the evaporator pressure, the adjustment on top of an automatic expansion valve should be:
A) Turned clockwise. B) Turned off. C) Turned on. D) Turned counterclockwise.
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A saltwater tank is easier to maintain than a freshwater tank.
Answer the following statement true (T) or false (F)
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