What Is the EEI POSS Test?
The EEI POSS Test (Plant Operator Selection System) is a collection of 4 pre-employment assessment tests used to screen power plant operators. The test is designed and administered by the Edison Electric Institute (EEI).
The 4 sections of the EEI POSS assess 4 cognitive abilities, meant to measure how well you are predicted to perform as a plant operator.
Test Structure and Question Format
The EEI POSS Test is divided into 4 sections, each with its own content and time limit:
- Figural Reasoning – 20 questions in 10 minutes.
- Mathematical Usage – 46 questions in 17 minutes.
- Mechanical Concepts – 44 questions in 20 minutes.
- Reading for Comprehension – 36 questions in 30 minutes.
Let’s describe each of these sections in a bit more detail.
You will find detailed answers for the questions below (+more) in the Free Practice section.
The Figural Reasoning section assesses your ability to recognize and apply patterns depicted in abstract shapes. This section contains 20 questions divided into 3 types: Shape Series, Shape Sets, and Matrices. In the Free Practice section, we provide one sample question of each type.
Probably more than any other section in the POSS test, trying to solve the Figural Reasoning section with no previous acquaintance with it is likely to harm your score.
The Mathematical Usage section assesses your ability to understand numerical data and perform quick, accurate calculations. It is a major part of the POSS test and contains 46 questions in 17 minutes – a very narrow time frame. Questions come in three types: unit conversion, algebra, and word problems.
The Mathematical Usage section is probably the section in which time poses the greatest challenge. Focus on improving your solving speed to succeed.
The questions in the Mechanical Concepts section assess your understanding of basic mechanics and electricity. The questions do not require calculations, and therefore can be solved quickly. The section contains 44 questions to be solved in 20 minutes.
Here’s a question you may be asked:
The variety of questions in the Mechanical Concepts section requires you to understand the major physical principles at the heart of the test. Examples are law of the lever, centrifugal force, fluid mechanics, etc.
Reading for Comprehension
The last section measures your ability to understand and interpret text. You will be presented with a short piece of text (~400 words) and will be required to answer 9 questions about it.
4 such texts will be given throughout the section, so 36 questions overall. The total time limit is 30 minutes.
Check out the Free Practice section to try some of these questions yourself.
The POSS test interface is easy to follow and is similar to that of other EEI tests such as CAST, TECH, or MASS. Here are 4 basic things you should know about the test:
Each section on the EEI POSS Test is conducted separately, with its own content and time limit. For instance, the Reading for Comprehension section is very generous on time, while the Mathematical Usage section is very time tight. Since you must solve each section separately, make sure you are well-prepared for each section’s own time constraints.
You Can Move Between Questions
The POSS test allows you to move back and forth between questions or skip them and get back to them later. That allows better time management and development of solid solving methods while preparing.
No Points Reduced for Wrong Answers
Your score on the POSS Test will be determined only based on the questions you have solved correctly. This means that it’s better to guess than leave questions unanswered.
Calculators Are Not Allowed
Of all EEI tests, the math portion is mostly significant in the POSS test. Since the test aims to assess your calculation ability, you will not be allowed a calculator. As such, you should master pen-and-paper calculation to maximize your chances of success.
This free practice test includes 12 questions, and is designed to get you familiar with the types of questions on the EEI POSS Test and their level of difficulty.
You will also find answers, explanations, and tips for success.
Section 1 – Figural Reasoning
Question 1 (Shape Series)
Question 2 (Shape Sets)
Question 3 (Matrices)
Section 2 – Mathematical Usage
Question 4 (Unit Conversion)
When converting square units – don’t forget to square!
Question 5 (Word Problems)
87 tasks have been assigned to you and your team. On Monday, you completed 13 tasks. On Tuesday you completed 22 tasks. On Wednesday you completed 18 tasks, and on Thursday you completed 25 tasks. Today is Friday morning. How many tasks remain?
Question 6 (Algebra)
2x – 14 = 4.5x + 1 ; x = ?
Section 3 – Mechanical Concepts
While the mechanical concepts section does not require previous knowledge, being familiar with basic physics is going to give you a major advantage.
Section 4 – Reading for Comprehension
Use the following passage for questions 10-12.
Safety Measures in Electrical Work
Electricians work with potentially hazardous electrical systems, and ensuring their safety is paramount to prevent accidents and injuries. Implementing effective safety measures is crucial in minimizing risks and creating a secure working environment.
Wearing appropriate Personal Protective Equipment (PPE) is fundamental for an electrician’s safety, including insulated gloves, safety glasses, flame-resistant clothing, and steel-toed boots. PPE provides a protective barrier against electric shocks, burns, and other potential hazards. However, proper safety measures are designed to ensure that PPE remains only a backup plan.
Using the right tools for the job is crucial in that sense. Insulated and non-conductive tools help prevent electric shock, and regular maintenance ensures that tools remain in good working condition. Compliance ensures that electrical installations meet safety standards, reducing the risk of accidents and ensuring the longevity of the electrical systems. Having first aid kits, fire extinguishers, and other equipment in the worksite ensures a prompt and effective response in case of accidents or injuries.
Professional knowledge is an essential component of safe work. Hence, electricians must undergo proper training and obtain the necessary certifications. While in the case of other jobs this training is designed mostly for professional reasons, the electrician codes and regulations were designed to prevent serious injury and death. Therefore, an in-depth familiarity with them is non-negotiable in this case. This requirement translates to a legally mandated official certification in nearly all countries and states, yet the specifications may vary. This includes but is not limited to adequate knowledge of electrical systems, safety protocols, and emergency procedures. Some regulatory bodies also require first aid training.
As every working environment has its own unique features, a thorough risk assessment should be carried out by a certified electrical engineer or electrician before commencing any electrical work. Identifying potential hazards and implementing preventive measures ensures a safer work environment, including assessing the voltage levels, potential exposure to live circuits, and any other factors that may pose a risk.
The usage of lockout/tagout procedures is another highly important safety measure. These procedures involve isolating energy sources and using locks or tags to protect electricians from unexpected electrical discharges. De-energization of panels should be used whenever possible, as well as proper labeling of circuits for quick and accurate identification.
Additional safety measures should be implemented for electrical work at heights. This may include the use of harnesses, guardrails, and proper scaffolding. Implementing these measures helps prevent falls and the associated injuries. Safety organizations and labor unions regularly conduct training and certification plans for those working at height.
According to the text, which of the following may be prosecuted?
- An electrician using substandard equipment.
- An electrician not using lockout/tagout procedures.
- An electrician working at heights.
- An electrician without an official certification.
- An electrician who did not carry out a risk assessment.
In which paragraph would it be most relevant to describe new patented pliers especially designed for electricians?
- Paragraph 1
- Paragraph 2
- Paragraph 3
- Paragraph 4
- Paragraph 5
Which of the following measures could be described as “the last line of defense” in an electrician’s work?
- Risk assessment
- An official certification
- Proper work tools
- Professional knowledge