About the SSC CHSL DEO typing test
Data Entry Operators in central ministries are selected through the CHSL Data Entry Speed Test. Instead of words per minute, SSC measures key depressions per hour – every character, space and punctuation mark you press counts. DEO posts in the C&AG require 15,000 key depressions per hour, while DEO Grade ‘A’ requires 8,000. This page simulates the 15-minute DEST in the TCS iON layout and reports your KDPH score at the end.
| Conducting body | Staff Selection Commission |
|---|---|
| Posts | Data Entry Operator (DEO), DEO Grade A |
| English | 15,000 key depressions per hour · 15 minutes |
| Passage size | About 3,750 key depressions |
| Backspace | Allowed (no spell-check / auto-correct) |
| Errors | DEST is judged on key depressions. Only correctly typed matter is meant to count, so heavy errors pull your effective speed down. |
| Interface on this page | TCS iON style (SSC / RRB / central CBT) |
SSC CHSL DEO typing test rules
- DEO: 15,000 key depressions per hour – about 3,750 key depressions in 15 minutes.
- DEO Grade A: 8,000 key depressions per hour – about 2,000 key depressions in 15 minutes.
- Test is in English only and is qualifying in nature.
- The passage is shown on screen; you type it in the box below in the same order.
Always check the latest notification. Recruiting bodies revise speed, duration and error rules from time to time. Information here was last reviewed on 18 October 2026. Official website: ssc.gov.in. You can change the required speed and error limit in the simulator’s Advanced options.
How the SSC CHSL DEO typing test is evaluated
Data Entry Speed Test: key depressions per hour
DEST measures how many key depressions you make per hour: KDPH = key depressions ÷ minutes × 60.
Every key you press in the final text counts – letters, numbers, spaces and punctuation – so finishing the passage is the main goal.
Mistakes are still evaluated; heavy errors are treated as incorrect matter, so keep your accuracy high while you push for volume.
Worked example: To reach 15,000 key depressions per hour in 15 minutes you must type about 3,750 key depressions – roughly 658 average English words including spaces.
Read the complete explanation with more examples in How typing speed is calculated in government exams.
Preparation tips for SSC CHSL DEO
- Key depressions include spaces and punctuation – type every character of the passage, including commas and full stops.
- Maintain an even rhythm: 3,750 key depressions in 15 minutes means about 4.2 keystrokes every second.
- Use the number row confidently; DEST passages often contain figures and dates.
New to touch typing? Start with our universal touch typing guide and the step-by-step keyboard lessons, then follow the 30-day plan.
About this exam interface
This simulator copies the TCS iON computer-based test layout used by SSC, RRB and many central recruiters: a header with the exam name, candidate details and a countdown timer, the passage in an upper pane, and a plain typing box below it. There is no word highlighting and no live speed meter – exactly like the real test.
Want to practise a passage from a previous year or your coaching notes? Add it in My Paragraphs – it stays in your browser and appears in the passage list of every simulator.
SSC CHSL DEO typing test – FAQs
How is the SSC DEST speed calculated?
Key depressions per hour = (key depressions typed ÷ minutes) × 60. Typing 3,750 key depressions in 15 minutes equals 15,000 KDPH.
What is the difference between DEO and DEO Grade A speed?
DEO posts (C&AG) need 15,000 key depressions per hour, while DEO Grade A needs 8,000 key depressions per hour.
Is this SSC CHSL DEO typing test free?
Yes. TypingPrep is completely free. There is no registration – your results and your own paragraphs are stored only in your browser.
Does this SSC CHSL DEO practice test look like the real exam?
This simulator copies the TCS iON computer-based test layout used by SSC, RRB and many central recruiters: a header with the exam name, candidate details and a countdown timer, the passage in an upper pane, and a plain typing box below it. There is no word highlighting and no live speed meter – exactly like the real test.