Fluid Flow MCQs : Here you will find MCQ Questions related to "Fluid Flow" in Bioprocess Engineering. These Fluid Flow MCQ Questions Will help you to improve your Bioprocess Engineering knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.
Question 1
_____________ is a part of fluid mechanics and deals with fluid dynamics.
A. Fluid Mixing
B. Fluid Flow
C. Fluid Transfer
D. None of the above
View Answer
Ans : B
Explanation: Fluid Flow is a part of fluid mechanics and deals with fluid dynamics. It involves the motion of a fluid subjected to unbalanced forces. This motion continues as long as unbalanced forces are applied.
Question 2
Which fluid cannot be compressed and the viscosity doesn’t fall?
A. Newtonian fluid
B. Real fluid
C. Ideal fluid
D. Ideal plastic fluid
View Answer
Ans : C
Explanation: Ideal fluid : A fluid is said to be ideal when it cannot be compressed and the viscosity doesn’t fall in the category of an ideal fluid. It is an imaginary fluid which doesn’t exist in reality.
Question 3
Viscosity of real fluid is?
A. Non-zero
B. Zero
C. Infinite
D. Both A and B
View Answer
Ans : A
Explanation: Viscosity of real fluid is Non-zero
Question 4
Density of Incompressible fluid is?
A. Variable
B. Constant
C. Both A and B
D. None of the above
View Answer
Ans : B
Explanation: Density of Incompressible fluid is Constant.
Question 5
Compressible subsonic flow has M between 0.3 to 1.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
View Answer
Ans : A
Explanation: True, Compressible subsonic flow has M between 0.3 to 1.
Question 6
Incompressible flow has Mach number greater than?
A. 0
B. 0.1
C. 0.2
D. 0.3
View Answer
Ans : D
Explanation: Incompressible flow has M<0.3.
Question 7
Which of the following is not an example of a Newtonian fluid?
A. Water
B. Glycerine
C. Non- Drip Paints
D. Alcohol
View Answer
Ans : C
Explanation: Stirring a non-Newtonian fluid can cause the viscosity to decrease, so the fluid appears “thinner” (this is seen in non-drip paints). There are many types of non-Newtonian fluids, as they are defined to be something that fails to obey a particular property – for example, most fluids with long molecular chains can react in a non-Newtonian manner.
Question 8
Venturi relation is one of the applications of ___________
A. Light equation
B. Speed equation
C. Equation of continuity
D. Bernoulli’s equation
View Answer
Ans : D
Explanation: The flow speed of a fluid can be measured using a device such as a Venturi meter or an orifice plate, which can be placed into a pipeline to reduce the diameter of the flow. For a horizontal device, the continuity equation shows that for an incompressible fluid, the reduction in diameter will cause an increase in the fluid flow speed.
Question 9
What is the SI unit of apparent viscosity?
A. Pascal – second
B. Pascal
C. Newton – second
D. Newton / hr
View Answer
Ans : A
Explanation: Apparent viscosity has the SI derived unit Pa•s (Pascal-second, but the centipoise is frequently used in practice: (1 mPa*s = 1 cP).
Question 10
Fluid flow can be steady only.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
View Answer
Ans : B
Explanation: Fluid flow can be steady or unsteady, depending on the fluid’s velocity:
Steady : In steady fluid flow, the velocity of the fluid is constant at any point
Unsteady: When the flow is unsteady, the fluid’s velocity can differ between any two points.