Most Repeated ECAT MCQs by Subject: Physics, Chemistry, Math & English

Unlike MDCAT, ECAT has no Biology section — it's Physics, Chemistry, Mathematics and English, drawn from the FSc pre-engineering syllabus. And like MDCAT, it repeatedly leans on the same load-bearing concepts rather than testing 11,000 random facts. Here's a subject-by-subject map of what tends to carry weight, illustrated with sample questions in the same style as the real thing.

Physics — mechanics, electricity and waves

1. The unit of work and energy in the SI system is the:

• A) Watt
• B) Joule ✅
• C) Newton
• D) Pascal

2. The phenomenon of bending of light around obstacles is called:

• A) Reflection
• B) Refraction
• C) Diffraction ✅
• D) Dispersion

3. Which law states that every action has an equal and opposite reaction?

• A) Newton's First Law
• B) Newton's Second Law
• C) Newton's Third Law ✅
• D) Law of Conservation of Energy

Chemistry — physical, organic and inorganic

4. The number of electrons in the outermost shell of an atom is called its:

• A) Atomic number
• B) Mass number
• C) Valence electrons ✅
• D) Isotope number

5. Which of the following is an organic compound?

• A) Sodium chloride
• B) Methane ✅
• C) Calcium carbonate
• D) Water

6. The general formula for alkanes is:

• A) CnH2n
• B) CnH2n+2 ✅
• C) CnH2n−2
• D) CnHn

Mathematics — algebra, calculus and trigonometry

7. The value of sin(90°) is:

• A) 0
• B) 1 ✅
• C) −1
• D) 0.5

8. The integral of a constant "k" with respect to x is:

• A) k
• B) 0
• C) kx + C ✅
• D) x

9. In a right-angled triangle, the Pythagorean theorem relates:

• A) All three angles
• B) The three sides ✅
• C) Area and perimeter
• D) Height and base only

English — grammar and vocabulary

10. Choose the correct passive voice: "She writes a letter."

• A) A letter was written by her.
• B) A letter is written by her. ✅
• C) A letter is writing by her.
• D) A letter has written by her.

Why This Works Better Than a Flat Question List

Notice each question above tests a concept — Newton's Third Law, the alkane formula, sin(90°) — not a memorised answer string. ECAT rewrites the specific numbers and phrasing every year, but the underlying idea stays stable, which is exactly why chapter-wise, concept-first practice consistently beats cramming a single leaked paper.

HighYield's ECAT question bank is organised by subject and topic with a full explanation on every question. For a mixed-section timed mock test instead of a subject review, see our free ECAT mock test. Try the first 20 questions of the full bank free from the UET ECAT question bank page.

Want a full chapter-wise breakdown of English specifically? See our ECAT English MCQs by chapter.