Temperature remains constant
Compressibility is greater than zero
Density does not change with pressure & temperature
Is frictionless
✅ The correct answer is option C.
Chemical Engineering MCQs
In case of a pipe exit fitted with a nozzle, the
Conversion of kinetic head to pressure head is facilitated
Conversion of pressure head to kinetic head is facilitated
Power transmitted through the nozzle is maximum, when the head lost due to friction in the pipe is equal to one third of the total supply head
Both B and C
✅ The correct answer is option D.
What is the co-efficient of contraction, if a fluid jet discharging from a 50 mm diameter orifice has a 40 mm diameter at its vena-contracta?
0.64
1.65
0.32
0.94
✅ The correct answer is option A.
Bernoulli’s equation for steady, frictionless, continuous flow states that the __________ at all sections is same.
Total pressure
Total energy
Velocity head
None of these
✅ The correct answer is option B.
High specific speed of a pump implies that, it is a/an __________ pump.
Centrifugal
Mixed flow
Axial flow
None of these
✅ The correct answer is option C.
Gradually varying fluid flow is an example of __________ flow.
Non-steady uniform
Non-steady non-uniform
Steady uniform
Steady non-uniform
✅ The correct answer is option A.
__________ forces act on a particle moving through a stationary fluid.
Gravity
Drag
Buoyant
All of the above
✅ The correct answer is option D.
Which of the following is not dimension-less?
Froude number
Kinematic viscosity
Pressure co-efficient
None of these
✅ The correct answer is option B.
Centre of pressure in an immersed body is __________ the centre of gravity.
Above
Below
At
Either above or below; depends on the liquid density
✅ The correct answer is option B.
The most important factor, which determines the maximum height to which water can be lifted by a pump at standard temperature is the
Barometric pressure
Speed of the impeller
Diameter of the impeller
Both B and C
✅ The correct answer is option A.