25. As an indication that an air compressor air intake filter needs to be replaced or cleaned, what statement is true?

For a given air demand, the compressor would run for shorter periods and the air intake pressure as measured between the filter and the compressor inlet would be less negative than with a clean filter.
For a given air demand, the compressor would run for shorter periods and the air intake pressure as measured between the filter and the compressor inlet would be more negative than with a clean filter.
For a given air demand, the compressor would run for longer periods and the air intake pressure as measured between the filter and the compressor inlet would be less negative than with a clean filter.
For a given air demand, the compressor would run for longer periods and the air intake pressure as measured between the filter and the compressor inlet would be more negative than with a clean filter.

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