Under the official Railway Recruitment Board (RRB) Centralised Employment Notice (CEN), the Computer Based Typing Skill Test (CBTST) is conducted under strict standardized parameters.
1. Official Notification Clause 13.5 Specifications
| Criteria / Rule | Official RRB English Standard | Official RRB Hindi Standard |
|---|---|---|
| Notification Clause | Para 13.5 (CBTST) | Para 13.5 (CBTST) |
| Test Duration | 10 Minutes | 10 Minutes |
| Minimum Words in Passage | 300 Words | 250 Words |
| Minimum Qualifying Net Speed | 30 WPM (Words Per Minute) | 25 WPM (Words Per Minute) |
| Permitted Keyboard Font | Standard English QWERTY | KrutiDev 010 / DevLys 010 / Mangal |
| Editing & Backspace | Disabled (Locked after Space) | Disabled (Locked after Space) |
| Retyping Facility | Enabled (Cycle repeat if finished) | Enabled (Cycle repeat if finished) |
2. The Official RRB Mistake Calculation Formula
As per the official RRB CBTST evaluation manual:
Mistakes Allowed (5% Exemption) = Total Words Typed × (5 / 100)
Excess Mistakes = Total Mistakes Committed - Mistakes Allowed
Penalty Deductions = Excess Mistakes × 10 Words
Net Speed (WPM) = (Total Words Typed - Penalty Deductions / 10 Minutes)
📌 Notification Case Study:
-
Scenario A: Candidate types 350 words with 15 mistakes.
- 5% exemption = 350 × 0.05 = 17.5 mistakes exempted.
- Since total mistakes (15) are within 17.5, zero penalty is deducted.
- Net Speed = 350 ÷ 10 = 35 WPM → QUALIFIED!
-
Scenario B: Candidate types 350 words with 25 mistakes.
- 5% exemption = 17.5 mistakes.
- Excess Mistakes = 25 − 17.5 = 7.5 mistakes.
- Penalty Deductions = 7.5 × 10 = 75 words deducted.
- Net Words = 350 − 75 = 275 words.
- Net Speed = 275 ÷ 10 = 27.5 WPM → DISQUALIFIED (Below 30 WPM Cutoff).
3. Practice Under Official RRB CBTST Interface
Practice with the exact locked-backspace algorithm and 10x deduction scoring on TypingWire.in.
⚡ Exam Day Interface & Software Behavior Checklist
Candidates preparing for this examination must train under realistic test software parameters to avoid unexpected failure on exam day:
- No Auto-Highlighting: The official test software displays the master passage statically. Words will not turn green or red as you type, and your active cursor position is not highlighted. You must maintain visual tracking independently.
- Manual Passage Scrolling: As you complete visible lines, the passage does not scroll down automatically. You must manually scroll using the mouse wheel or the downward arrow key on your keyboard.
- The 5-Minute Mock Trial Run: Prior to the real evaluation, a short demo session is conducted. Physically test every critical key:
- Tap Spacebar, Backspace, and Enter repeatedly to detect sticky membranes.
- Verify both Left Shift and Right Shift keys.
- If any key requires abnormal pressure or fails to register, raise your hand immediately to request a replacement terminal before the main exam timer begins.
- Accuracy Over Unchecked Speed: Because penalization algorithms deduct heavily for uncorrected errors, typing smoothly at a steady pace with 98%+ accuracy yields higher qualifying scores than rushing with frequent typos.
🔗 Related Examination & Speed Guides
Continue preparing with official error annexures, software interface rules, and speed conversion benchmarks:
- Bihar Beltron DEO & BSSC Inter-Level Typing Rules: Read the full breakdown in Bihar Beltron DEO & BSSC Inter-Level Typing Rules.
- MP CPCT Typing Test Rules & Scorecard Validity: Read the full breakdown in MP CPCT Typing Test Rules & Scorecard Validity.
- UPSSSC Junior Assistant & Clerk Typing Test Rules: Read the full breakdown in UPSSSC Junior Assistant & Clerk Typing Test Rules.
- RSSB RSMSSB LDC Typing & Computer Efficiency Rules: Read the full breakdown in RSSB RSMSSB LDC Typing & Computer Efficiency Rules.
