Parabolic law
Linear law
Logarithmic law
None of these
✅ The correct answer is option C.
Chemical Engineering MCQs
For flow of fluids through packed bed, the superficial velocity is
Less than the average velocity through channels
More than the average velocity through channels
Dependent on the pressure drop across the bed
Same as the average velocity through channels
✅ The correct answer is option A.
A venturimeter measures the
Velocity head
Pressure
Point velocity
None of these
✅ The correct answer is option D.
The hydrodynamic and thermal boundary layers will merge, when
Prandtl number is one
Schmidt number tends to infinity
Nusselt number tends to infinity
Archimedes number is greater than 10000
✅ The correct answer is option A.
Hydraulic diameter for non-circular ducts is equal to __________ times the area of flow divided by the perimeter.
Two
Three
Four
Eight
✅ The correct answer is option C.
Select the correct practical example of steady non-uniform flow.
Motion of water around a ship in a lake
Motion of river around bridge piers
Steadily decreasing flow through a reducing section
Steadily increasing flow through a pipe
✅ The correct answer is option C.
Efficiency of power transmission (η) through a circular pipe is given by (ht – hf)/ht, which has a maximum value of __________ percent.
:03:00
50
66.6
88.8
✅ The correct answer is option C.
Which of the following is not a dimension-less parameter?
Euler number
Specific gravity
Fanning friction factor
None of these
✅ The correct answer is option D.
Ratio of inertial forces to surface tension forces is called the __________ number.
Euler
Froude
Mach
Weber
✅ The correct answer is option D.
A hydraulic ram acts as a/an __________ pump.
Centrifugal
Reciprocating
Impulse
Parallel cylinder
✅ The correct answer is option C.