Hi guys in this article we learn about MCQ questions on Fluid Mechanics some important mcq questions are given below. These questions are important for competitive exams and knowledge of fluids mechanics.

MCQ questions on Fluid Mechanics

MCQ questions on Fluid Mechanics

Q.no.1) The force of buoyancy is always ............ the weight of lequid displaced by the body.

a) equal to

b) less than

c) more than

d) none of these

Ans:- (a)

Q.no.2) Value of bulk modulus of fluid required to determine

a) reynolds's number

b) mach number

c) euler's number

d) froude's number

Ans:- (c)

Q.no.3) The ratio of inertia force is called 

a) reynold's number

b) weber's number

c) froude's number

d) none of these

Ans:- (a)

Q.no.4) Bulk modulus of fluid .......... as   the pressure increases.

a) remains same

b) decreases

c) increases

d) none of these

Ans:- (c)

Q.no.5)  Water is ........ fluid.

a) real

b) ideal

c) Newtonian

d) non Newtonian

Ans:- (c) 

Q.no.6) The dynamic viscosity of gases ....... with rise in temperature.

a) remain unaffected

b) increases

c) decreases

d) none of these

Ans:- (b) 

Q.no7) Stability of dam is checked for

a) tension of the base

b) sliding of the wall 

c) overturning of the wall

d) all of these

Ans:- (d)

Q.no.8) Manometer is used to measure

a) low pressure

b) moderate pressure

c) high pressure

d) atmospheric pressure

Ans:- (c)

Q.no.9) The liquid used to measure

a) low density

b) high density

c) low surface tension

d) high surface tension

Ans:- (d) 

Q.no.10) Piezometer tube is used for measuring

a) low pressure

b) high pressure

c) moderate pressure

d) vaccum pressure

Ans:- (c)

Q.no.11) What is the term used to describe the resistance of a fluid to flow?

a) Viscosity

b) Density

c) Pressure

d) Surface tension

Ans:- (a) 

Q.no.12) Which of the following statements about laminar flow is true?

a) It is characterized by irregular and chaotic fluid motion.

b) It occurs at high Reynolds numbers.

c) Velocity gradients are negligible in laminar flow.

d) It is more likely to occur in highly viscous fluids.

Ans:- (d) 

Q.no.13) What is the velocity profile of laminar flow in a pipe?

a) Parabolic

b) Flat

c) Exponential

d) Irregular

Ans:- (a) 

Q.no.14)  What is the dimensionless quantity that characterizes the ratio of inertial forces to viscous forces in a fluid flow?

a) Mach number

b) Froude number

c) Reynolds number

d) Weber number

Ans:- (c) 

Q.no.15) Which of the following is NOT a factor influencing the viscosity of a fluid?

a) Temperature

b) Pressure

c) Molecular weight

d) Density

Ans:- (d) 

Q.no.16) What type of flow occurs when the Reynolds number is between 2000 and 4000?

a) Laminar flow

b) Turbulent flow

c) Transitional flow

d) Steady flow

Ans:- (c) 

Q.no.17) What does the term "compressible flow" refer to?

a) Flow with varying velocity

b) Flow with changing density

c) Flow with constant temperature

d) Both (a) and (b)

Ans:- (b) 

Q.no.18) What is the relationship between pressure and velocity in Bernoulli's equation?

a) As velocity increases, pressure decreases.

b) As velocity decreases, pressure decreases.

c) Pressure and velocity are independent.

d) None of these

Ans:- (a) 

So in this article we learn about MCQ questions on Fluid Mechanics hope you understand well.

If you having any queries comments below. thanks for reading it.