ECAT Past Papers: What Repeats and Which Topics Matter
We went through seven UET ECAT past papers question by question. 29 questions appear in more than one paper, and a handful of chapters carry a large share of the marks. Here's what we found.
By ParhaiKrlo Team · Published 22 Oct 2026 · 2 min read
Yes, ECAT repeats. In our seven UET ECAT past papers, 29 questions appear word for word in more than one paper, and 3 appear in three.
That's from our own count of 700 questions. UET publishes no papers, so these are the widely shared reconstructions of past tests.
Quick answer
- Papers counted: 7 full ECAT papers, 700 MCQs
- Questions in more than one paper: 29
- In three papers: 3
- Top Physics chapter: Motion and Force (32 questions)
- Top Maths chapter: Trigonometry (33)
- Top Chemistry chapter: Liquids and Solids (23)
What kind of questions repeat
The repeats are mostly standard concept questions, for example:
- The photoelectric effect and what sets the energy of emitted electrons
- Why water falling from a tap narrows (the equation of continuity)
- What alkanes are made of
- Heisenberg's uncertainty principle
- What a single-diode rectifier outputs
- Young's double-slit experiment
So the lesson isn't to memorise answers. It's that ECAT keeps testing the same core ideas.
Physics: the chapters tested most
| Chapter | Questions (of 210) |
|---|---|
| Motion and Force | 32 |
| Waves | 20 |
| Electronics | 16 |
| Alternating Current | 16 |
| Current Electricity | 14 |
Mathematics
| Chapter | Questions (of 210) |
|---|---|
| Trigonometry | 33 |
| Differentiation | 25 |
| Functions and Limits | 22 |
| Integration | 21 |
| Matrices and Determinants | 19 |
| Quadratic Equations | 18 |
Calculus (differentiation, integration, limits) together is about a third of the Maths section.
Chemistry
| Chapter | Questions (of 210) |
|---|---|
| Liquids and Solids | 23 |
| Electrochemistry | 20 |
| p-Block Elements | 15 |
| Atomic Structure | 13 |
| Solutions | 11 |
English
Of 70 English questions, 38 were grammar and usage, 20 reading comprehension and 12 vocabulary.
How to use this
- Cover the top chapters first, but don't skip the rest. Every chapter shows up somewhere.
- Sit full papers, not just topic drills. The paper mixes everything under one clock.
- When you see a question you've met before, check that you know why the answer is right. A small change in the numbers can change it.
Frequently Asked Questions
Do ECAT questions repeat?
Yes. In our seven ECAT past papers (700 MCQs), 29 questions appear word for word in more than one paper and 3 appear in three.
Which Physics chapter comes most in ECAT?
Motion and Force, with 32 of 210 Physics questions in our seven papers, followed by Waves (20).
Which Maths chapter comes most in ECAT?
Trigonometry, with 33 of 210 Maths questions in our seven papers. Differentiation, limits and integration together are about a third of the section.
Does UET publish ECAT past papers?
No. The papers in circulation are reconstructions of past tests. Ours have every answer checked and every unanswerable item replaced.
Sit the papers yourself
All seven are on our UET ECAT past papers page: 100 questions each, timed at 100 minutes, every answer checked and explained step by step.