If the vector diagram of two AC waveforms is a right angle, then the waves _____
a. are in phase
b. are 90° out of phase
c. have the same frequency
d. have the same peak voltage
b
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The short cutback for a 6 × 6, 30-degree, Schedule 40 lateral would be _____ inch(es).
a. 7/8 b. 1-3/8 c. 2 d. 3
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Before the advent of canning and refrigeration, about the only way of preserving meat was to ____________________ or dry it
Fill in the blank(s) with correct word
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If you need a 30 amp compressor contactor, which of the following is the best choice?
a. 30 amp inductive – 20 amp resistive b. 20 amp inductive – 30 amp resistive
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Frequency shift keying is a type of encoding in which a digital signal modulates the frequency of a higher frequency sine wave is frequency shift keying
Indicate whether the statement is true or false
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