The Staff Selection Commission (SSC) CHSL Skill Test demands a minimum typing speed of 35 Words Per Minute (WPM) in English (or 30 WPM in Hindi) within a 10-minute exam duration. This translates to 10,500 Key Depressions Per Hour (KDPH). While many candidates clear the written Tier 1 exam, hundreds fail at the skill test due to poor posture, keyboard unfamiliarity, and panic during live timing.
1. Understand the Official SSC WPM & KDPH Formula SSC calculates speed based on key depressions (strokes). A standard word is defined as 5 key strokes (including spaces and punctuation). Formula: Gross WPM = (Total Strokes Typed / 5) / 10 Minutes Net WPM = Gross WPM - (Total Penalty Mistakes / 10)
For English, typing 1,750 correct strokes in 10 minutes equals exactly 35 WPM.
2. Practice with Official SSC Error Criteria in Mind SSC divides errors into: - **Full Errors**: Omitting a printed word, substituting a word, adding an unprinted word. - **Half Errors**: Spacing mistakes, capital vs small letter typos, spelling mistakes, punctuation errors.
Unreserved (UR) category candidates get a maximum allowable error relaxation of 7%. Reserved candidates get 10%.