Uniform flow occurs when

A The direction and magnitude of the velocity at all points are identical
B The velocity of successive fluid particles, at any point, is the same at successive periods of time
C The magnitude and direction of the velocity do not change from point to point in the fluid
D The fluid particles move in plane or parallel planes and the streamline patterns are identical in each pleasure

Correct Answer: The magnitude and direction of the velocity do not change from point to point in the fluid

Bissoy MCQ
#Mechanical Engineering #Hydraulics And Fluid Mechanics In ME

Related Questions

Uniform fluid flow occurs, when the derivative of the flow variables satisfy the following condition.
A $$\frac{\partial }{{\partial {\text{t}}}} = 0$$
B $$\frac{\partial }{{\partial {\text{t}}}} = {\text{constant}}$$
C $$\frac{\partial }{{\partial {\text{s}}}} = 0$$
D $$\frac{\partial }{{\partial {\text{s}}}} = {\text{constant}}$$
The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)
A 0.423 D
B 0.577 D
C 0.223 D
D 0.707 D
Non uniform flow occurs when
A The direction and magnitude of the velocity at all points are identical
B The velocity of successive fluid particles, at any point, is the same at successive periods of time
C Velocity, depth, pressure, etc. change from point to point in the fluid flow
D The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane
A flow through a long pipe at decreasing rate is called __________ uniform flow.
A Steady
B Unsteady
C Both A and B
D None of these
An example of unsteady non uniform flow is the flow of liquid under pressure through a
A Tapering pipe at constant flow rate
B Tapering pipe at either decreasing or increasing flow rate
C Long pipeline of constant diameter
D None of these
Steady non-uniform flow is exemplified by flow through a/an
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at increasing rate
D Expanding tube at constant rate
Unsteady uniform flow is represented by flow through a/an
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at increasing rate
D Expanding tube at constant rate
Unsteady non-uniform flow is represented by flow through a/an
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at increasing rate
D Expanding tube at constant rate
Steady uniform flow is represented by flow through a/an
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at constant rate
D None of these
Machine A produces bolts at a uniform rate of 120 every 40 seconds and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously , how many seconds will it take for them to produce a total of 200 bolts.
A 22
B 25
C 28
D 32

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