Steady, incompressible, irrotational
Steady, compressible, irrotational
Steady, compressible and along a streamline
Unsteady, incompressible, irrotational
✅ The correct answer is option A.
Chemical Engineering MCQs
Poise is converted into stoke by
Multiplying with density (gm/c.c)
Dividing by density (gm/c.c)
Multiplying with specific gravity
Dividing by specific gravity
✅ The correct answer is option B.
During ageing of fluid carrying pipes, the
Pipe becomes smoother with use
Friction factor increases linearly with time
Absolute roughness decreases with time
Absolute roughness increases linearly with time
✅ The correct answer is option D.
When a fluid flows over a solid surface, the
Velocity is uniform at any cross-section
Velocity gradient is zero at the solid surface
Resistance between the surface & the fluid is lesser as compared to that between the fluid layers themselves
Velocity is not zero at the solid surface
✅ The correct answer is option B.
f = 16/NRe, is valid for
Turbulent flow
Laminar flow through an open channel
Steady flow
None of these
✅ The correct answer is option D.
Air vessel provided in a reciprocating pump is for
Increasing the acceleration head
Making the friction in pipe uniform
Decreasing the acceleration head
None of these
✅ The correct answer is option B.
The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonion fluid in a circular pipe is
0.5
1
2
0.66
✅ The correct answer is option A.
In the complete turbulence zone (in rough pipes), the
Rough and smooth pipes have the same friction factor
Laminar film covers the roughness projections
Friction factor depends upon NRe only
Friction factor is independent of the relative roughness
✅ The correct answer is option D.
The ratio of inertial forces to elastic forces is called the __________ number.
Reynolds
Mach
Euler
Weber
✅ The correct answer is option B.
Hot wire anemometer is used to measure the
Velocity of liquids
Temperature of liquids
Velocity of gases
Pressure of liquids
✅ The correct answer is option C.