EngineerProof practice series

FE Electrical and Computer Practice Exam

Name: Electrical and Computer Practice Exam, Form A
Brand: EngineerProof
Price: 29 USD
Availability: InStock

Form A

110 original problems in the FE Electrical and Computer format, with complete worked solutions. Every problem is answerable with the on-screen reference handbook alone, every solution names the governing handbook equation, and every numeric answer was reproduced by a second, independent calculation route before publication.

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What is in the exam

110 problems distributed across all 17 knowledge areas of the current FE Electrical and Computer specification, with per-area counts inside the published NCEES ranges. Two timed sittings of 55 problems reproduce the pace of the real 5-hour-20-minute appointment.

Knowledge area	This form	NCEES range	Free sample
Mathematics	12	11-17	View
Probability and Statistics	5	4-6	View
Ethics and Professional Practice	4	4-6	View
Engineering Economics	5	5-8	View
Properties of Electrical Materials	4	4-6	View
Circuit Analysis (DC and AC Steady State)	12	11-17	View
Linear Systems	6	5-8	View
Signal Processing	6	5-8	View
Electronics	8	7-11	View
Power Systems	8	8-12	View
Electromagnetics	5	4-6	View
Control Systems	7	6-9	View
Communications	6	5-8	View
Computer Networks	4	4-6	View
Digital Systems	9	8-12	View
Computer Systems	5	5-8	View
Software Engineering	4	4-6	View

How the solutions are written

A short derivation in plain professional prose: what governs, the governing equation named as it appears in the reference handbook, and the result with units.
A one-line explanation of each wrong choice, computed from the specific error that produces that exact value — never invented.
Every answer verified by a second, independent route — an alternate formula, a limiting case, or a direct recomputation — before release.
Typeset as a clean, monochrome book: the full form, an answer key, and complete solutions in one print-ready PDF.
A score sheet groups your results by knowledge area — the same area-by-area view as the NCEES diagnostic report — so a retake candidate can check that the weak areas from a previous attempt have actually closed.

Sample problem

Mathematics

Two feeder branches deliver phasor currents $I_{1} = 12∠2 5^{\circ}$ A and $I_{2} = 9∠ - 4 0^{\circ}$ A into a common node, both referred to the same voltage reference. The magnitude of the total current leaving the node is most nearly:

(A)11.6 A
(B)15.0 A
(C)17.8 A
(D)21.0 A

Show worked solution

Answer: (C)

Added in rectangular form, the two branch currents give a resultant of 17.8 A. The 65 degree phase separation is what holds the total below the 21 A arithmetic sum.

Phasor addition requires rectangular components, since the two branch currents differ in phase by 65 degrees.

I_{1} = 12 (cos 2 5^{\circ} + j sin 2 5^{\circ}) = 10.876 + j 5.071 A

I_{2} = 9 (cos 4 0^{\circ} - j sin 4 0^{\circ}) = 6.894 - j 5.785 A

Component-wise addition leaves a resultant almost aligned with the real axis, the imaginary parts nearly cancelling.

I_{1} + I_{2} = 17.770 - j 0.714 A

Magnitude of the resultant follows from its rectangular components.

∣ I_{1} + I_{2} ∣ = 17.77 0^{2} + 0.71 4^{2} = 17.8 A

FE Reference Handbook — Mathematics: Complex Numbers, Polar and Rectangular Forms

Why the other choices appear

(A)Subtracts the phasors instead of adding them, giving sqrt(225 - 91.29) = 11.56 A.
(B)Treats the two currents as orthogonal, giving sqrt(12^2 + 9^2) = 15.0 A.
(D)Adds the magnitudes arithmetically, 12 + 9 = 21 A, ignoring the 65 degree phase separation.

One free sample problem with its complete worked solution is published for each knowledge area — open any area from the table above.

Retaking the exam?

Repeat attempts pass at roughly half the first-time rate, and the difference is almost always the plan, not the person. Read the FE Electrical and Computer retake guide — the current NCEES rules, how to read your diagnostic report, and how to use this form's knowledge-area score sheet as the go/no-go check before you pay for the next appointment.

Corrections and provenance

Every problem in this book is an original work written for this publication. Official examination questions are confidential and are not reproduced or paraphrased. If an error survives the two-route verification, the correction is published on this site with a version number, and buyers can re-download the corrected PDF from their receipt link at no charge. Support: support@inshihub.com.