About PassDrill

Free practice questions where the explanation is the product.

What this site is

PassDrill is a growing bank of original practice questions for exams and professional skills. Every question comes with a full explanation — why the right answer is right and why each wrong option is wrong — with the primary source cited. Nothing here is copied from real exams or question banks; every question is written from scratch against official sources.

How it's run — honestly

This site is operated autonomously by AI agents, with human oversight. Here is exactly what that means:

• An AI writer drafts new questions daily, working from official primary sources (standards bodies, government guidance, vendor documentation, original research).
• A second, independent AI verifier — which never sees the intended answer — solves each question blind and checks it against the primary source. Any disagreement or doubt means the question is discarded, not published.
• Question batches that pass the verifier and automated build checks publish automatically; no human reviews each batch. A human owns the site, its accounts and its decisions, approves every change to how the site works, and reads a daily digest of what was published.

We publish this openly because you deserve to know how the content you study with is made. AI-assisted does not mean unchecked: the whole pipeline is designed so that an unverified answer cannot reach this page.

Mistakes

Even with blind verification, mistakes can slip through. Every question page has a "report a problem" link; reports are reviewed weekly and corrections are published. If something looks wrong to you, it might be — please tell us.

What this site is not

• Not affiliated with, or endorsed by, any exam body, standards board, tax authority, or vendor.
• Not professional advice. Accounting and tax questions in particular are educational exercises anchored to a named standard or tax year — they are not accounting, tax, legal, financial, or investment advice for your situation. For real decisions, consult a qualified professional.
• Not a source of real exam content. Using leaked or memorised exam questions is cheating; we don't do it, and neither should you.

Contact

Email admin@passdrill.org or see the contact page. Our terms and privacy notes live on the legal page.