Final answer:
Chopin's Revolutionary Étude is written in a 4/4 time signature, featuring four beats per measure with the quarter note receiving one beat.
Step-by-step explanation:
The meter of Chopin's Revolutionary Étude is in C major and is written in a 4/4 time signature, which is also known as common time. This means that there are four beats in each measure and the quarter note gets one beat. This particular piece is known for its technical demands on the pianist, requiring fast, complex finger work, and a strong emotional expression. As an étude, or study, it was composed both as an exercise to improve a particular aspect of a pianist's technique and as a standalone performance piece.