AI Learning · 7 MIN READ
CastIQ AI Quiz Generator: Auto-Generate Practice Questions from Any Source
How CastIQ turns notes, a PDF, or a video into a practice quiz — question mix, difficulty control, explanations per question, and how to actually use it for exam prep.
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CastIQ's Quiz feature turns notes, a PDF, or a YouTube video into a practice quiz — 1 to 100 questions, adjustable difficulty, and a question mix you control (conceptual, numerical, application, common-mistake, or exam-style) — with a worked explanation for every question, not just the correct answer.
Reading notes twice feels like revision, but it mostly tests whether you can recognize a sentence you already saw — not whether you can actually answer a question about it cold. Self-testing is one of the more consistently useful study techniques, and it's also the one most people skip, because writing your own practice questions is slow and doing it well is harder than it looks.
What makes CastIQ's quiz generator different
- Explanations on every question — including ones you got right, so a lucky guess doesn't look identical to actual understanding.
- 1–100 questions per generation, so a quiz can be a 5-minute check or a full mock test.
- Difficulty control — easy, medium, or hard.
- Question mix control — bias the set toward the kind of question you actually need practice with.
- Works from notes, a PDF, or a video directly — no need to generate notes first if you just want a quiz.
Question mix, explained
Conceptual — tests whether you understand the idea itself, not just a fact about it.
Numerical — calculation-based questions, for subjects where the answer is a number you derive, not a sentence you recall.
Application — takes a concept and asks you to apply it to a new scenario you haven't seen worded that way before.
Common mistake — targets the specific errors students typically make on a topic, which is a different (and often more useful) skill than answering a straightforward question correctly.
Exam-style — phrased and formatted the way a real exam question would be, for practice closer to the actual test format.
Balanced is a safe default
If you're not sure which mix to pick, balanced draws from all five types. Switch to a specific weighting once you know which type you personally get wrong most — numerical and common-mistake tend to be the most revealing about actual gaps, not just recall.
Already have a set of notes sitting unused?
Turn them into a quiz →How to generate a quiz with CastIQ
- 01
Pick a source
Use notes you already generated in CastIQ, or start fresh from a PDF or YouTube video.
- 02
Set question count and difficulty
Anywhere from 1 to 100 questions, at easy, medium, or hard difficulty.
- 03
Choose your question mix
Balanced, or weighted toward conceptual, numerical, application, common-mistake, or exam-style questions.
- 04
Attempt it
Get instant scoring, plus a worked explanation for every question — including the ones you got right.
A quiz tells you what you don't know — it doesn't explain it back to you in context. If a question keeps tripping you up, it's often faster to go back to the structured notes for that topic, or check an AI mind map to see how it connects to everything else, than to keep re-attempting the same quiz.
Frequently asked questions
Between 1 and 100 questions per quiz, in one generation.
Reading your notes twice isn't the same as knowing them.
Turn any source into a practice quiz with CastIQ.
Try CastIQ Free →