Free CNA practice quiz
40 unofficial scenario-based questions, one at a time, with a score and answer review.
Start the quizCNA career pathNew: Nov/Dec 2026 skills test changes (TN, WI)Unofficial · United States
Practical unofficial exam-prep tools and life-admin resources
KnowHowSupply is a small US business. We sell digital study guides and printable tools, and we offer a free unofficial CNA practice quiz.
Study guides
16 unofficial PDF study guides: 13 fire alarm, NICET, and low-voltage guides, plus a CNA exam study guide, a journeyman electrician calculations workbook, and a real estate exam math workbook.
See the guidesTools and planners
A 2026 holiday gift budget spreadsheet, plus two short humorous how-to guides.
See the toolsStudy guide highlights
All study guides- Journeyman Electrician Exam Calculations Workbook (Unofficial, PDF)Unofficial
- Real Estate Exam Math Workbook (Unofficial, PDF)Unofficial
- CNA Exam Study Guide 2026 + Skills Checklist (Unofficial, PDF)Unofficial
- NICET Fire Alarm Systems Level I Study Guide (Unofficial, PDF)Unofficial
- NICET Fire Alarm Systems Level II Study Guide (Unofficial, PDF)Unofficial
- NICET Fire Alarm Systems Level III Study Guide (Unofficial, PDF)Unofficial
- Fire Alarm Battery & Standby Power Calculations Guide (Unofficial, PDF)Unofficial
- Fire Alarm Initiating Devices & Detector Spacing Guide (Unofficial, PDF)Unofficial
- Fire Alarm Calculations Workbook (Unofficial, PDF)Unofficial
- NFPA 72 Tabbing & Lookup Cheat Sheet Pack (Unofficial, PDF)Unofficial
- NAC / Notification Appliance Spacing & Candela Quick Guide (Unofficial, PDF)Unofficial
- Circuit Classes A/B/N/X Quick Guide (Unofficial, PDF)Unofficial
- New Mexico ES-3J Fire Alarm Exam Prep (Unofficial, PDF)Unofficial
- Texas Fire Alarm SFMO Study Guide (Unofficial, PDF)Unofficial
- Florida FASA + Alarm Contractor I Exam Prep (Unofficial, PDF)Unofficial
- California C-7 Low Voltage Systems Study Guide (Unofficial, PDF)Unofficial
Tools and planners
Holiday Gift Budget Planner 2026
A spreadsheet for planning a holiday gift budget.
How to Make Toast
A short, humorous how-to guide.
How to Send an Email
A short, humorous how-to guide.
Future money and life-admin tools, and personalized products, are planned.