Thickness only
Outer diameter only
Thickness & outer diameter both
Inner diameter
✅ The correct answer is option C.
Chemical Engineering MCQs
Capacity of a hydraulic accumulator is defined in terms of maximum
Amount of energy stored
Flow rate through accumulator
Rate of falling of ram
Volume available in the cylinder
✅ The correct answer is option A.
With decrease in particle size to be fluidised by a particular fluid, the operating range of fluidisation velocity
Widens
Squeezes
Does not change
Unpredictable from the data
✅ The correct answer is option C.
What is the maximum theoretical suction lift (metres) of a reciprocating pump?
5
10
50
100
✅ The correct answer is option B.
Minimum fluidisation velocity for a specific system depends upon the
Particle size
Fluid viscosity
Density of both the particle & the fluid
All of the above
✅ The correct answer is option D.
Actual lift of a pump is always less than the theoretical lift and is limited by the
Specific gravity & temperature of the liquid
Leakage & pressure decreasing at higher elevations
Frictional resistance through pipes, fittings & passages
All of the above
✅ The correct answer is option D.
For flow past a flat plate, if x is the distance along the plate in the direction of flow, the boundary layer thickness is proportional to
√x
1/√x
X
1/x
✅ The correct answer is option A.
Which of the following equations is valid for laminar flow of a fluid through packed bed?
Fanning equation
Kozney – Karman equation
Hagen – Poiseuille equation
Blake – Plummer equation
✅ The correct answer is option B.
Boundary layer separation is caused by the
Reduction of pressure below vapour pressure
Reduction of pressure gradient to zero
Adverse pressure gradient
Reduction of boundary layer thickness to zero
✅ The correct answer is option C.
Momentum transfer in laminar flow of fluids results due to the
Viscosity
Density
Velocity gradient
None of these
✅ The correct answer is option C.