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Amidst several acronyms used for admission tests, let us introduce you to ESAT. It stands for the Engineering and Science Admissions Test. Conducted by the ‘University Admissions Test-UK’ (UAT-UK), it is one of the key tests required for admission into engineering and science undergraduate programmes at prominent universities like Cambridge, UCL, and Imperial College London.
If you are aiming to study Chemical Engineering at Imperial College, you may have noticed that the university guidelines stipulate that the ESAT exam is an essential requirement. Here we will look at what you need to know if it's Imperial College you’re targeting. We have covered the basics previously, but we will give enough context here to guide you.
What is ESAT?
It is a computer-based admissions test designed to assess your aptitude in specific scientific and mathematical principles. It replaces older tests like the NSAA and ENGAA, consolidating them into a single format for universities to evaluate applicants fairly.
Structure of the ESAT Exam
Understanding the layout of the ESAT UK assessment is the first step toward success. The exam is divided into distinct modules, and which ones you take depends entirely on your chosen course at Imperial.
ESAT Modules Explained
There are a total of five modules in the ESAT:
- Mathematics 1
- Mathematics 2
- Physics
- Chemistry
- Biology
Most colleges require a student to sit compulsorily for Mathematics 1 and two other modules, depending upon the course. So, most likely you will need to sit for three modules. Continuing with our example of studying Chemical Engineering at Imperial College, you will be required to sit for:
- Mathematics 1
- Mathematics 2
- Chemistry
Important: It goes without saying, but always check the entry requirements for each course before you submit your college application.
Format and Timing
The ESAT exam is a computer-based test taken at a Pearson VUE centre (the same testing centre used for other common exams like the GED).
Duration
Each module consists of 27 multiple-choice questions to be answered in 40 minutes. That means a total of 81 questions to be answered in 2 hours.
Restrictions:
Warning! Unlike the SATs, you cannot use a calculator in the ESAT.
Marking
There are no negative markings and no such thing as pass or fail. So do your best!
How the ESAT is Scored
The easy part is that every correct answer carries one mark, and as we said, there is no negative marking. The score for each module is calculated separately and is scored on a scale of 1 to 9 upto 1 decimal point. One Reddit user broke down the way the conversion happens from raw score to the scale points.
Target Scores for Imperial
While there is no official pass mark for getting into Imperial, the historical data for the 2025 entry cycle gives us some idea. For competitive departments like Aeronautical Engineering, successful applicants typically need scores around Mathematics 1 ≥ 7.0, Mathematics 2 ≥ 6.5, and Physics ≥ 6.5. For Chemical Engineering, a score of 7.0 or above in the Chemistry module is often expected.
Achieving these scores can be challenging. Data from 2025 shows that only about 10% of all test-takers score 7.0 or above in any given module. It is also crucial to know that Imperial considers the ESAT as one part of a complete application, alongside predicted grades and the personal statement. A high score doesn't guarantee a place, and a slightly lower score doesn't automatically disqualify someone.
Essential ESAT Prep Strategies
To succeed, you need a solid strategy. The right ESAT prep can make the difference between a mediocre score and a competitive one.
Start with the Syllabus
The best place to start would be to check the content specification for the ESAT. It is basically the syllabus for the exam, containing the themes to be covered in each module. It's a great resource because it doesn’t just list topics for a module, but also tells you what they expect you to know from that topic.
For example, the following is an excerpt from the Biology module specification:
“Know and understand the structure and function of the main sub-cellular components of eukaryotic cells (both animal and plant), including: cell membrane, cytoplasm, nucleus, mitochondrion, cell wall (plant only), chloroplast (plant only), vacuole (plant only)”
Utilize Official Sample Questions
You must also check out the sample questions posted by the UAT-UK. Sharing an example below from their Mathematics-1 module-
The good thing is that the sample tests open up in the Pearson VUE test player, the same program you will use in the actual exam. This allows you to practice the test in a similar environment, aiding in your ESAT prep.
We highly recommend attempting the sample tests in a time-bound manner to enhance your chances of doing well when the exam rolls in.
