Explore topic-wise MCQs in Fluid Mechanics.

This section includes 59 Mcqs, each offering curated multiple-choice questions to sharpen your Fluid Mechanics knowledge and support exam preparation. Choose a topic below to get started.

51.

WHICH_EQUATION_MUST_BE_PERFUNCTORILY_SATISFIED_WHILE_DEALING_WITH_FLUID_FLOW_PROBLEMS??$

A. Newton’s second law
B. Newton’s third law
C. Law of conservation of momentum
D. Continuity equation
Answer» E.
Discussion
52.

Convective_acceleration_is_defined_as_the_rate_of_change_of_velocity_due_to_change_of_velocity_with_respect_to_time.$

A. True
B. False
Answer» C.
Discussion
53.

Total acceleration has the same value as convective acceleration in case of unsteady flow?

A. True
B. False
Answer» C.
Discussion
54.

Local acceleration has constant value for a steady flow.

A. True
B. False
Answer» C.
Discussion
55.

Convective acceleration cannot be found if the fluid flow equation is not satisfying

A.
B. True
Answer» C.
Discussion
56.

A fluid flow field is given by

A. k
B.
C. 28i-3j+125k
D. 28i-3j-125k
Answer» E.
Discussion
57.

Determine the third velocity component such that continuity equation is satisfied if two components are u=x2+y2+z2, v=xy2 – yz2 + xy$

A. -3xz-2xyz+z<sup>2</sup>/3+f(y,z)
B. -3xz+2xyz+z<sup>3</sup>/3+f(y,z)
C. -3xz-2xyz+z<sup>3</sup>/3+f(x,z)
D. -3xz-2xyz+z<sup>3</sup>/3+f(y,z)
Answer» E.
Discussion
58.

Determine the third velocity component such that continuity equation is satisfied if two components are u=2y2, w=2xyz.

A. -2xy+x<sup>2</sup>y+f(y,z)
B. 4xy-x<sup>2</sup>y+f(y,z)
C. -4xy-x<sup>2</sup>y+f(y,z)
D. -2xy-x<sup>2</sup>y+f(y,z)
Answer» D. -2xy-x<sup>2</sup>y+f(y,z)
Discussion
59.

The velocity vector in a fluid is given V=5x4+3y2+2z( in metre/sec). What is the acceleration of it at point (1,3,4) ?

A. 40 m/s<sup>2</sup>
B. 20 m/s<sup>2</sup>
C. 60 m/s<sup>2</sup>
D. 80 m/s<sup>2</sup>
Answer» B. 20 m/s<sup>2</sup>
Discussion