FE Industrial and Systems Systems Engineering, Analysis, and Design Practice Problems

The current FE Industrial and Systems specification assigns 8-12 of the 110 exam questions to Systems Engineering, Analysis, and Design. Form A contains 10 original problems in this area. The sample below is published in full, with the same worked-solution format used throughout the book.

Free sample problem

Three independent series components have reliabilities 0.98, 0.95, and 0.99. System reliability is most nearly:

(A)0.23
(B)0.461
(C)0.691
(D)0.922

Show worked solution

Answer: (D)

Series reliability is 0.922.

The system structure, reliability, or life-cycle relation defines the result.

R_{s} = \prod R_{i}

Substitution and unit reduction give the reported value.

R_{s} = 0.98 (0.95) (0.99) = 0.922

FE Reference Handbook — Reliability: Series Systems

Why the other choices appear

(A)This introduces an extra factor of 0.25 that is not present in the governing relation.
(B)This value is 50% below the verified result; no stated conversion creates that change.
(C)The units are retained, but an unsupported 0.75 multiplier changes the requested magnitude.

The complete FE Industrial and Systems practice exam contains 10 problems in this area and 110 problems overall, with an answer key, full solutions, and a score sheet by knowledge area.

Free FE Industrial and Systems problems in the other knowledge areas

Mathematics · Engineering Sciences · Ethics and Professional Practice · Engineering Economics · Probability and Statistics · Modeling and Quantitative Analysis · Engineering Management · Manufacturing, Service, and Other Production Systems · Facilities and Supply Chain · Human Factors, Ergonomics, and Safety · Work Design · Quality

Retaking this exam? The FE exam retake guide turns the NCEES diagnostic report into an area-by-area plan.