CAST Exam for Edison Electric Institute (EEI): Overview, Eligibility, and Preparation Guide
The Construction and Skilled Trades (CAST) Exam, administered by the Edison Electric Institute (EEI), is a crucial test for individuals seeking employment in the energy and utility industries. This exam assesses a candidate’s aptitude in areas necessary for skilled trade positions, including electrical work, mechanical maintenance, and construction roles. Companies in the utility sector use the CAST exam to evaluate candidates for positions such as lineworkers, plant operators, and maintenance technicians.
This article provides an in-depth look at the CAST exam, its eligibility requirements, and the best ways to prepare for success.
What is the CAST Exam?
The CAST Exam is designed to measure a candidate’s ability to perform essential tasks in skilled trade jobs within the utility industry. The exam evaluates problem-solving skills, mechanical aptitude, mathematical reasoning, and spatial ability. It consists of four sections:
- Graphic Arithmetic – Assesses the ability to read and interpret diagrams, blueprints, and graphs.
- Mechanical Concepts – Tests understanding of mechanical principles, including pulleys, levers, and gears.
- Reading Comprehension – Evaluates the ability to read and understand technical information.
- Mathematical Usage – Measures basic arithmetic and problem-solving skills, including fractions, percentages, and unit conversions.
The exam takes approximately two hours to complete, and scores are typically used by employers to rank candidates based on job suitability.
Eligibility Criteria for the CAST Exam
The CAST Exam does not have universal eligibility requirements since it is administered by utility companies for hiring purposes. However, general eligibility criteria may include:
- A high school diploma or equivalent (GED).
- A background in skilled trades, construction, or technical fields is preferred.
- Candidates must apply through the hiring utility company, as the test is not offered directly to individuals.
- Some employers may have physical and safety-related requirements for certain positions.
Since different utility companies have unique hiring processes, it is essential to check the specific requirements for the company where you are applying.
How to Prepare for the CAST Exam
1. Understand the Test Format
- Familiarize yourself with the four sections of the CAST exam.
- Review sample questions to understand the types of problems you’ll face.
- Check if your prospective employer provides study materials or sample tests.
2. Improve Your Mechanical Aptitude
- Study basic mechanical principles, including levers, pulleys, gears, and electrical circuits.
- Review physics concepts related to force, motion, and energy.
- Use online mechanical aptitude tests to practice.
3. Practice Graphic Arithmetic
- Focus on interpreting and analyzing diagrams, charts, and blueprints.
- Practice reading scales and measurements commonly used in technical drawings.
- Work on exercises that involve plotting points, estimating distances, and calculating areas.
4. Strengthen Your Math Skills
- Brush up on fractions, decimals, percentages, and basic algebra.
- Practice unit conversions and problem-solving with real-world scenarios.
- Utilize math workbooks or online resources to improve speed and accuracy.
5. Enhance Reading Comprehension
- Read technical manuals, instructional guides, and safety documents to get familiar with industry terminology.
- Practice summarizing key points and identifying important information from passages.
- Work on timed reading comprehension exercises to improve speed.
6. Take Practice Tests
- Use official EEI practice exams (if provided by your prospective employer).
- Find online CAST practice tests to simulate the exam environment.
- Time yourself to ensure you can complete each section within the allotted time.
7. Prepare for Test Day
- Get a good night’s sleep before the exam.
- Arrive at the testing center early and bring any required identification.
- Read instructions carefully and manage your time efficiently during the test.
Study Materials For CAST Exam!


The CAST Exam is a critical step for individuals seeking a career in the utility and skilled trades industry. By understanding the test structure, meeting eligibility requirements, and preparing effectively, candidates can increase their chances of securing a job in the energy sector. Utilizing study guides, practice tests, and hands-on problem-solving exercises will help ensure success on test day.
For those serious about passing the CAST exam, early preparation and consistent practice are key. Good luck!
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