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. are 90° out of phase
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What is the guide for safe practices and procedures in the electrical field published by the National Fire Protection Association?
What will be an ideal response?
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In heavy-duty wall-form systems, the forms components are connected with _____.
a. screw clamps b. nuts and bolts c. form ties and walers d. quick-connect hardware
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Indicate whether the statement is true or false
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What will be an ideal response?
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