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For the symmetric triangular truss shown, what is the vertical reaction at support A?
The vertical load is applied at the midspan top joint of a symmetric truss, so the vertical reactions split equally: R_A = P/2 = 10/2 = 5 kip.
Practice in the real timed interface.
A full-length, timed exam that mirrors test day: a live countdown, your reference open on the left, flag-for-review, and an end-of-section review map. So when it counts, nothing about the screen is new.

The full timed simulator runs on a desktop monitor. On mobile, here's a sample practice question with a worked solution.
Simulated product interface for illustration. The reference panel in the desktop simulator is an illustrative Stamp Prep formula sheet, not the NCEES Reference Handbook. NCEES® is a registered trademark of the National Council of Examiners for Engineering and Surveying. Stamp Prep is not affiliated with or endorsed by NCEES.
Practice quizzes that show the work.
Every problem ships with a full, step-by-step worked solution and a citation to the NCEES Reference Handbook page it came from. No more guessing why you got something wrong. See exactly which equation, which assumption, which line.
- Structured steps, not vague hints.
- References back to the handbook when they apply.
A simply-supported beam carries a point load of 12 kN at midspan. Which expression gives the maximum bending moment?
- 01Reactions at each support are equal: R = P/2 = 6 kN.
- 02Cut the beam at midspan and sum moments about the cut.
- 03Max moment occurs at the load: Mmax = R · L/2 = PL/4.
Exam coverage by discipline.
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$49.99/mo for the PE.
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Still got questions?
The answers most engineers ask before signing up.
Can I cancel anytime?
Yes, anytime. Monthly plans (FE, PE, and trades) bill month-to-month; cancel whenever and you keep access through the end of the billing period, then it stops. The 3, 6, and 12-month plans are one-time purchases that never auto-renew, so there's nothing to cancel, and we email you before access ends.
What is the Stamp Prep FE to PE loyalty discount?
It's a price break for engineers who study with us across both exams. Pass your FE with Stamp Prep, send us the verifiable link from the front page of your MyNCEES account, and your PE subscription drops from $49.99 to $29.99/mo. Heads up: the discount kicks in from your next billing cycle once we verify. We don't refund or backdate it for charges that already went through, so send your verification in before you sign up or renew your PE plan.
Which FE and PE disciplines do you cover?
Every FE discipline currently administered by NCEES (Civil, Mechanical, Chemical, Electrical & Computer, Environmental, Industrial & Systems, Other) and the major PE disciplines (Civil General, Mechanical General, Chemical, Electronics-Controls-Communications, Environmental, Control Systems Engineering). New disciplines are added as NCEES rolls them out.
Are the questions current with the latest NCEES handbook?
Yes. The bank is mapped to the current NCEES Reference Handbook revision (2026). Every problem references the specific handbook page its solution comes from, so when NCEES updates the handbook, we audit and update.
Does the timed simulator match the real NCEES CBT?
Yes: same pacing, same break structure, same on-screen calculator constraints. We're not affiliated with NCEES. We built it to match what you'll see on test day so the real thing feels familiar.
More questions. Less money.
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