Practise UPSC CSE Prelims · CSAT
Timed OMR simulation with pre-configured questions and duration. Mark answers, review flagged questions, and match against an answer key.
Mark your answers.
Click or tap a bubble to mark. Select it again to clear.
Keyboard: Tab to move between bubbles, then press A–D.
UPSC CSE Prelims · CSAT
Questions: 80 | Time: 120 mins
Marks: +2.5 / -0.83
UPSC CSE Prelims · CSAT scoring reference
The values below are the tool’s editable practice preset. Exam patterns and marking rules can vary by cycle, paper, and section; use the linked official source to confirm the notice that applies to you.
| Parameter | Page preset | How to use it |
|---|---|---|
| Questions | 80 | Preset count; verify the current paper |
| Correct answer | +2.5 marks | Editable calculator value |
| Wrong answer | −0.8333 marks | Editable calculator value |
| Duration | 120 minutes | Practice timer default |
| Options | 4 | Practice sheet layout |
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Score calculation formula
Net score = (correct × 2.5) − (wrong × 0.8333)
Example: 6 correct and 2 wrong yields 13.33 marks before official normalization or section qualifying rules.
Penalty deduction ratio: One-third penalty. View expected value calculations on the One-third penalty calculator →
Need a rapid marks calculation?
Estimate your UPSC CSE Prelims · CSAT score instantly without filling the OMR bubbles.
Expected value when eliminating choices
Expected value = (chance correct × positive marks) − (chance wrong × penalty). Break-even accuracy with these settings is 25.00%.
| Choices left | Chance correct | Expected marks | Estimate |
|---|---|---|---|
| 4 of 4 | 25.0% | +0.00 | Break-even threshold |
| 3 of 4 | 33.3% | +0.28 | Positive expected value |
| 2 of 4 | 50.0% | +0.83 | Positive expected value |
| 1 of 4 | 100.0% | +2.50 | Positive expected value |
This is a mathematical probability estimate under uniform assumption, not official test strategy.
Frequently asked questions
How do I practice the UPSC CSE Prelims · CSAT OMR sheet online?
Click the A, B, C, D bubbles for each of the 80 questions, use review flags to mark doubtful questions, and monitor your pace with the live 2 hours (120 mins) countdown timer. You can also print a blank A4 OMR sheet for pen-and-paper practice.
What is the negative marking deduction for UPSC CSE Prelims · CSAT?
For UPSC CSE Prelims · CSAT, each correct bubble scores +2.5 marks and each wrong bubble loses −0.8333 marks. Blank responses receive 0 marks.
How do I evaluate my answers with an answer key?
Paste or type your official answer key string (e.g. ABCD...) into the key input box. ExamMint immediately compares your attempts against the key and generates a breakdown of correct, incorrect, blank, and net marks.
Are my practice attempts and timer saved?
Yes, your answers, timer state, and review flags are auto-saved in your browser's local storage so you can resume even if the page refreshes. No data is sent to external servers.
Expected value when eliminating choices
Expected value = (chance correct × positive marks) − (chance wrong × penalty). Break-even accuracy with these settings is 25.00%.
| Choices left | Chance correct | Expected marks | Estimate |
|---|---|---|---|
| 4 of 4 | 25.0% | +0.00 | Break-even threshold |
| 3 of 4 | 33.3% | +0.28 | Positive expected value |
| 2 of 4 | 50.0% | +0.83 | Positive expected value |
| 1 of 4 | 100.0% | +2.50 | Positive expected value |
This is a mathematical probability estimate under uniform assumption, not official test strategy.
Frequently asked questions
How do I practice the UPSC CSE Prelims · CSAT OMR sheet online?
Click the A, B, C, D bubbles for each of the 80 questions, use review flags to mark doubtful questions, and monitor your pace with the live 2 hours (120 mins) countdown timer. You can also print a blank A4 OMR sheet for pen-and-paper practice.
What is the negative marking deduction for UPSC CSE Prelims · CSAT?
For UPSC CSE Prelims · CSAT, each correct bubble scores +2.5 marks and each wrong bubble loses −0.8333 marks. Blank responses receive 0 marks.
How do I evaluate my answers with an answer key?
Paste or type your official answer key string (e.g. ABCD...) into the key input box. ExamMint immediately compares your attempts against the key and generates a breakdown of correct, incorrect, blank, and net marks.
Are my practice attempts and timer saved?
Yes, your answers, timer state, and review flags are auto-saved in your browser's local storage so you can resume even if the page refreshes. No data is sent to external servers.