MCQs on Circulation

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

1. : Around a velocity field, which of the following is the line integral of a closed curve?
(A) Vorticity
(B) Circulation
(C) Dilatation
(D) Streamline

2. : Which of the following is circulation?
(A) Divergence of velocity
(B) Velocity field
(C) Flux of vorticity
(D) Velocity

3. : Among the following, which has more viscosity?
(A) Water
(B) Honey
(C) Oil
(D) Juice

4. : At which layer is the boundary formed?
(A) Boundary of an object
(B) Surface of an object
(C) At a point on an object
(D) Edges of an object

5. : What is the circulation when the flow is irrotational everywhere within the contour of integration?
(A) 1
(B) Positive
(C) Negative
(D) Zero

6. : Which of the following is the equal component of vorticity normal to dS?
(A) Circulation per unit area
(B) Negative of flow per unit area
(C) Zero
(D) Circulation

7. : The boundary layer’s nature depends upon _____
(A) Mach number
(B) Inertia force
(C) Reynold’s number
(D) Viscosity

8. : Circulation is a _______ quantity, in microscopic view.
(A) Vector
(B) Dimensionless
(C) Scalar
(D) Non-measurable