Top 50+ Solved Motion of Fluid Particles and Streams MCQ Questions Answer
From 1 to 14 of 14
Q. If the flow is irrational as well as steady it is known as
a. Non-uniform flow
b. One-dimensional flow
c. Potential flow
d. None of the above.
Q. High velocity flow in a conduit of large size is known as
a. Laminar flow
b. Turbulent flow
c. Either of the above
d. None of the above.
Q. If the Reynolds number is less than 2000, the flow in a pipe is
a. Laminar flow
b. Turbulent flow
c. Transition flow
d. None of the above.
Q. The path followed by fluid particle in motion is called a
a. Streamline
b. Path line
c. Streak line
d. None of the above.
Q. A....is an imaginary line within the flow so that the tangent at any point on it indicates the velocity at thatpoint.
a. Streak line
b. Stream line
c. Path line
d. None of the above.
Q. A stream line is one
a. In which stream function does not change
b. In which the flow cannot cross the bounding surface
c. Which has a constant area throughout its length so that the velocity remains constant.
d. None of the above.
Q. ...... is a curve which gives an instantaneous picture of the location of the fluid particles which have passedthrough a given point.
a. Path line
b. Stream line
c. Streak line
d. None of the above.
Q. In fluid mechanics, the continuity equation is a mathematical statement embodying the principle of
a. Conservation of momentum
b. Conservation of mass
c. Conservation of energy
d. None of the above.
Q. An irrational flow is one in which
a. The stream lines of flow are curved and closely spaced
b. The fluid does not rotate as it moves along
c. The net rotation of fluid particles about their mass centres remains zero
d. None of the above.
Q. ....... is defined mathematically as the line integral of the tangential velocity about a closed path (contour).
a. Circulation
b. Vorticity
c. Either of the above
d. None of the above.
Q. The concept of stream function which is based on the principle of continuity is applicable to
a. Irrotational flow only
b. Two-dimensional flow only
c. Three-dimensional flow
d. Uniform flow only.
Q. The motion is described as ......when the components of rotation or vorticity are zero throughout certain point of the fluid.
a. Rotational
b. Irrotational
c. Either of the above
d. None of the above.
Q. ........ is defined as a scalar function of space and time such that its negative derivative with respect to any direction gives the fluid velocity in that direction.
a. Velocity potential function
b. Stream function
c. Circulation
d. Vorticity.
Q. A flow net is a graphical representation of strea lines and equipotential lines such that these lines
a. Intersect each other orthogonally forming curvilinear squares
b. Intersect each other at various different angles forming irregular-shaped nets
c. Indicate the direction and magnitude of vector
d. None of the above.
- 1 (current)