Exelon EEI Test Practice: ComEd, PECO, BGE
Preparation guide for the Edison Electric Institute tests in hiring at Exelon's utilities
What Exelon says about the test
Exelon runs one hiring process for its utilities, ComEd, PECO, BGE, Pepco, Delmarva Power and Atlantic City Electric, and its hiring process page says: "Some positions require passing an Edison Electric Institute (EEI) test." It encourages qualified applicants to take EEI's practice tests, which "are the same format and include the same concepts as the actual tests".
The page does not say which battery goes with which job. EEI matches them by job family, so the posting or your invitation will name one of these:
- CAST or CAST-R for line, substation, trades and meter work
- POSS for plant operators and MASS for plant maintenance
- TECH for technicians
- SO/PD II for system operators and dispatchers
Where it sits in Exelon hiring
How the EEI tests are marked
Every subtest is scored as the number you get right, and EEI's brochures say "There is no penalty for guessing or wrong answers", so leave nothing blank. The utility never sees a subtest on its own: the subtests in a battery are combined into one index (1 to 10 on CAST, 0 to 15 on POSS, Recommended or Not Recommended on SO/PD II), and the utility sets its own cut-off. Neither EEI nor any utility we have read publishes that cut-off, so aim to do well on every subtest rather than at a number. EEI does not give results to candidates; the utility does.
Practise for the Exelon EEI test
Each game below is one EEI subtest on EEI's own clock where EEI publishes one, with free movement between questions as on the paper and no penalty for a wrong answer. Together they are every subtest we simulate from CAST, CAST-R, MASS, POSS, TECH and SO/PD II.
- EEI Mechanical Concepts (44 questions · 20 minutes · free) - In CAST, CAST-R, MASS, POSS and TECH: 44 drawings in 20 minutes, three options each. Free, and the one to start with.
- EEI Reading Comprehension (26-36 · 22-30 minutes) - Choose your battery: 32 questions in 30 minutes for CAST, 36 in 30 for MASS and POSS, 26 in 22 for SO/PD II.
- EEI Mathematical Usage (18-46 · 7-17 minutes) - The short form, 18 questions in 7 minutes, or the long POSS form, 46 in 17. Formulas are given; the fifth option is N, none of these.
- EEI Graphic Arithmetic (16-21 · 19-30 minutes) - Arithmetic on dimensioned drawings that are not to scale. CAST and CAST-R settings, plus a TECH Graphic Problem Solving setting.
- EEI Assembling Objects (20 questions · 15 minutes) - MASS only: 20 puzzles in 15 minutes, joining labelled or unlabelled parts.
- EEI Figural Reasoning (20 questions · 10 minutes) - POSS only: 20 picture series, comparisons and progressions in 10 minutes, about 30 seconds each.
- EEI Interpreting Diagrams (20 questions · 15 minutes) - TECH: count and read symbols on a sector map against a legend. EEI publishes no clock, so ours is 20 questions in 15 minutes.
- EEI Reasoning from Rules (15 questions · 15 minutes) - TECH: apply a set of routing rules to each case. EEI publishes no clock, so ours is 15 questions in 15 minutes.
- EEI Analytic Thinking Skills (23 questions · 45 minutes) - SO/PD II: 23 questions in 45 minutes across arguments, problem solving and TRUE, FALSE or INDETERMINABLE logic.
Which subtests make up each battery, and what we do not simulate, is on the EEI practice page. The EEI test guide covers calculators, scoring and retake rules across utilities.
Common questions
Is the ComEd or PECO test different from Exelon's?
No. The hiring process page is shared across Exelon's utilities, and the same EEI batteries are used across the industry.
Which EEI test will I take?
The one for your job family. Exelon's page does not list them, so check the posting or invitation for CAST, POSS, MASS, TECH or SO/PD II.
Also applying elsewhere? Our FirstEnergy and Dominion Energy guides cover the same tests.