The duty factor is a ______ number with a value between _____.

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Sharpen your skills for the Davies Publishing SPI Test with targeted flashcards and multiple-choice questions, complete with hints and clarifications. Prepare thoroughly for success!

Multiple Choice

The duty factor is a ______ number with a value between _____.

Explanation:
The duty factor is a fraction of time: it measures how much of one cycle the system is active. Since it’s a ratio of on-time to total cycle time, the units cancel, leaving a pure number with no units—so it’s unitless. Its value sits between 0 and 1 because you can’t have negative active time and you can’t exceed the full cycle: 0 means never on during the cycle, and 1 means on the entire cycle. In this context, the range is inclusive, so the duty factor can be exactly 0 or exactly 1.

The duty factor is a fraction of time: it measures how much of one cycle the system is active. Since it’s a ratio of on-time to total cycle time, the units cancel, leaving a pure number with no units—so it’s unitless. Its value sits between 0 and 1 because you can’t have negative active time and you can’t exceed the full cycle: 0 means never on during the cycle, and 1 means on the entire cycle. In this context, the range is inclusive, so the duty factor can be exactly 0 or exactly 1.

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