Sharpen Your Edge: Timed MCQs with Accuracy and Speed Analytics

Practice smarter with AI-powered, adaptive MCQs—Java to System Design and beyond. Timed questions, instant verdicts, concise explanations, and profile-based personalization.

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  • Timer per question
  • Friendly UX
  • Session stats & accuracy

Pick from suggestions below or add your own. Click a chip to add it. Press Enter to add the typed topic.

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Dark-themed infographic for the AI-powered MCQ practice web app (practice.engineeringtheinvisible.dev): choose topics, answer & submit, instant verdict with answer summary, and topic/subtopic analytics.

How it Works

  1. Step 1
    Set your profile

    Add name, email, topics, level.

  2. Step 2
    Practice timed MCQs

    Single/multiple answers, countdown, auto-submit.

  3. Step 3
    Review & improve

    Instant verdicts, summaries, session stats.

Frequently Asked Questions

How do timers and auto-submit work?
The countdown is 75s (Beginner), 60s (Intermediate), 45s (Advanced). When it hits zero, we auto-submit your current selection (or a blank if none) and prefetch the next question without rendering it. You decide when to click Next.
Do you support multiple-answer questions?
Yes. Options render as checkboxes and you can select all that apply. For "single", you’ll get radio buttons.
What data is stored locally?
Your profile (name, email, topics, level) and session stats/records are stored in localStorage on this device only. Use Clear to remove them anytime.
Why doesn’t the next question load automatically?
We prefetch after each submit but only render on your Next click to avoid needless server calls if you’re idle. It’s faster and more respectful of quotas.
How are accuracy and stats calculated?
We track total time, loaded, attempted, evaluated, and correct. Accuracy = correct / evaluated. When you end session, you can see this analytics by subtopic wise.
Can I add custom topics?
Yes—use the free-text field. Press Enter to add, click chips to select/remove. These feed into the request’s domain.
how are correct answers highlighted?
After submit, correct options are highlighted in green; any chosen wrong options in red. A short success/failure flash appears on the card.
how would I know if "why" my answer was wrong?
After submit, Along with correct option we show a short summary explaining why correct answers are correct.

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