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Fluid Dynamics MCQs for MDCAT

4 Fluid Dynamics questions from real MDCAT past papers (2025), each with the correct answer and a written explanation.

4 questionsPhysics

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1Physicscontinuity equation

Q142. An incompressible fluid flows through a pipe that becomes narrower in one section. The fluid speed in that region increases in that region to maintain:

  1. A.a) Constant pressure
  2. B.b) constant energy
  3. C.c) constant mass flow rate
  4. D.d) constant volume

Answer and explanation locked

2Physicsbernoulis principle

Q143. In a pipe of varying cross-section as fluid enters the narrower region, it exhibits:

  1. A.a) high velocity, high pressure
  2. B.b) high velocity, low pressure
  3. C.c) low velocity, high pressure
  4. D.d) low velocity, low pressure

Answer and explanation locked

3Physicsairfoil pressure

Q144. The curved shape of an airplane wing causes air to move faster over the top surface. This leads to:

  1. A.a) greater pressure on the top
  2. B.b) lower pressure on the top
  3. C.c) equal pressure on both sides
  4. D.d) zero pressure above the wing

Answer and explanation locked

4Physicsturbulent transition critical velocity

Q158. A fluid is flowing through a tube, to undergo transition from laminar to turbulent flow it's velocity must be:

  1. A.Slightly less than critical velocity
  2. B.equal to critical velocity
  3. C.greater than critical velocity
  4. D.increasing gradually but less than critical velocity

Answer and explanation locked

How Fluid Dynamics is examined

Fluid Dynamics sits in the official PMDC Physics curriculum, the document that defines what can and cannot appear in the 2026 paper. Everything on this page is tagged against that curriculum rather than against a chapter list invented for a website, which is why a chapter here matches the chapter your textbook and your teacher use.

Physics carries 36 of the 180 questions in the real paper - 20% of your MDCAT score, and the MDCAT is half your merit aggregate. PMDC does not publish how those 36questions are split across chapters, so no honest page can tell you “expect four from Fluid Dynamics”. What the archive can tell you is what actually appeared: 4 Fluid Dynamics questions out of the 234 Physics questions digitised so far.

Work through them with the explanations rather than checking answer letters. The explanation says why the other three options are wrong, and distractors get reused across years far more reliably than whole questions do.

Frequently asked questions

How many Fluid Dynamics MCQs are on this page?
4, drawn from one past paper - the 2025 paper. Every one is transcribed from the real paper rather than written to look like a past paper question, and each carries the correct answer with a written explanation. 0 of them are readable in full without an account.
Is Fluid Dynamics in the MDCAT 2026 syllabus?
Yes. Fluid Dynamics is a chapter of the official PMDC Physics curriculum, and PMDC has confirmed the 2026 syllabus is unchanged from the 2025 revision, so everything on this page is still examinable.
How many Fluid Dynamics questions come up in the MDCAT?
PMDC does not publish a per-chapter breakdown, so nobody can tell you a reliable number - be careful with pages that do. What can be counted is the paper as a whole: Physics is 36 of the 180 questions, and 2% of the Physics questions in our archive so far have come from Fluid Dynamics.
Do these Fluid Dynamics MCQs come with explanations?
Yes, and they are written from scratch rather than copied. An answer letter tells you nothing about why the other three options are wrong, which is the part that transfers to the next question. The first 0 questions of every paper are free to read in full; the rest need a pass.