REC Study Guide 2026
Everything you need to pass the REC exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 REC Exam Format at a Glance
📚 REC Topics to Study (18)
✍️ Sample REC Questions & Answers
1. What is the purpose of the locomotive's Sanders system during an inspection?
The Sanders system deposits sand between the wheels and rail to increase adhesion during wheel slip or slippery rail conditions.
2. Which lighting component is required to be operational on a locomotive during nighttime operations per FRA rules?
FRA requires the front headlight, number lights, and sufficient cab lighting to be operational for safe nighttime locomotive operation.
3. Under FRA regulations, what is the maximum blood alcohol concentration (BAC) permitted for a railroad engineer on duty?
FRA regulations (49 CFR Part 219) set the maximum BAC for on-duty railroad employees at 0.04%, which is half the legal driving limit in most states.
4. What must be done before moving a train?
Before moving a train, a thorough brake test must be performed to ensure that all braking systems are fully functional and capable of safely stopping the train. This critical safety procedure verifies that the air brakes apply and release correctly on all cars, preventing uncontrolled movements or accidents.
5. What ethical consideration is most relevant to materials science & specifications in REC practice?
Maintaining confidentiality and acting in the best interest of stakeholders is the cornerstone ethical consideration for materials science & specifications in professional practice.
6. What is the minimum brake cylinder piston travel limit before corrective action is required on most freight locomotives?
FRA regulations specify that brake cylinder piston travel should not exceed 7 inches without corrective maintenance.
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📖 REC Guides & Articles
What Practice Test Geeks adds beyond an AI chat for REC
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length REC mock exam — 50 questions in 90 minutes with a 80% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed REC question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable REC cheat sheet you can print or save as a PDF.
- REC flashcards built from the same question bank.
- Free REC practice tests with the correct answer shown after each question.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- ecfr.gov — Score validity, test delivery, retake policy, eligibility · verified Nov 2026