Physics MCQs for entry test ECAT

By: Prof. Dr. Fazal Rehman | Last updated: May 20, 2025

1. : In an unbroken stream, the flow of jet of oil can be attributed?
(A) Capillarity
(B) Surface tension
(C) Temperature
(D) Density

2. : Newtonian’s fluid example is?
(A) Water
(B) Plastic
(C) Colloids
(D) Gel

3. : Due to which principle does the aircraft fly in the atmosphere?
(A) Archimedes principle
(B) Bernoulli’s principle
(C) Gravitational force
(D) Newton’s law of viscosity

4. : What is V in the equation V = 1/ν * D(ν)/Dt?
(A) Change in velocity
(B) Divergence of velocity
(C) Volume
(D) Velocity as a function of time

5. : Under which flow similarity do scale, volume, and length fall?
(A) Geometric Similarity
(B) Kinematic Similarity
(C) Dynamic Similarity
(D) Dimensionless number

6. : The shock wave is formed in?
(A) Subsonic flow
(B) Transonic flow
(C) Supersonic flow
(D) Incompressible flow

7. : For a fluid, which of the following is a suitable flow model?
(A) Finite control volume approach
(B) Infinitesimal fluid element approach
(C) Molecular approach
(D) All three models can be applied based on the requirement

8. : Under which flow similarity does the force of inertia fall?
(A) Geometric Similarity
(B) Kinematic Similarity
(C) Dynamic Similarity
(D) Dimensionless number

9. : Which of the following is the ratio of Reynolds number?
(A) Inertia force to viscous force
(B) Viscous force to inertia force
(C) Inertia force to gravity force
(D) Pressure force to inertia force