Press
Turbine
Pump
Coupling
✅ The correct answer is option A.
Chemical Engineering MCQs
The bulk modulus of elasticity of a liquid
Is zero for incompressible liquid
Decreases with pressure
Is independent of temperature & pressure
Increases with pressure
✅ The correct answer is option D.
For turbulent flow of newtonion fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is
0.5
1
0.66
< 0.5
✅ The correct answer is option B.
A relief valve
Provides back pressure for a cylinder
Unloads a pump
Is a directional control valve
None of these
✅ The correct answer is option C.
Head developed by a centrifugal pump depends on its
Speed
Impeller diameter
Both A and B
Neither A nor B
✅ The correct answer is option C.
The ratio of hydrodynamic boundary layer to thermal boundary layer thickness in case of liquid metals is
< 1
1
> 1
2
✅ The correct answer is option A.
Equivalent length of a pipe fitting is
Dependent on Reynolds number
Independent of Reynolds number
Dependent on the length of the pipe
None of these
✅ The correct answer is option A.
For steady ideal fluid flow, the Bernoulli’s equation states that the
Velocity is constant along a stream line
Energy is constant throughout the fluid
Energy is constant along a stream line, but may vary across stream lines
None of these
✅ The correct answer is option C.
The ratio of maximum to average velocity in case of streamline flow between parallel plates is
1
1.5
2
2.5
✅ The correct answer is option B.
The time of oscillation of a floating body is
Longer, if metacentric height is increased
Independent of the metacentric height
Dependent on the buoyant forces only
None of these
✅ The correct answer is option D.