AC continually changes in amplitude and ___ reverses direction.

Prepare for the Weapons CDC Test with interactive learning tools, including flashcards and multiple-choice questions. Each question comes with detailed explanations. Ace your exam with confidence!

Multiple Choice

AC continually changes in amplitude and ___ reverses direction.

Explanation:
AC is characterized by a current that changes sign in a regular, repeating way. The waveform rises to a positive peak, crosses zero, then falls to a negative peak, and this pattern repeats at a steady rate defined by the supply frequency. Because those direction reversals occur at fixed intervals, calling them periodic best captures the idea. Saying it reverses direction describes the action, but specifying that it happens periodically emphasizes the regular timing of those reversals. The other options don’t convey that regular timing: constantly suggests no rhythm, reverses alone lacks the sense of repetition, and alternates would be awkward or redundant in this wording.

AC is characterized by a current that changes sign in a regular, repeating way. The waveform rises to a positive peak, crosses zero, then falls to a negative peak, and this pattern repeats at a steady rate defined by the supply frequency. Because those direction reversals occur at fixed intervals, calling them periodic best captures the idea. Saying it reverses direction describes the action, but specifying that it happens periodically emphasizes the regular timing of those reversals. The other options don’t convey that regular timing: constantly suggests no rhythm, reverses alone lacks the sense of repetition, and alternates would be awkward or redundant in this wording.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy