Fluid Mechanics Test Questions Start Creating PDF

MCQ: According to Archimede's principle, if a body is immersed partially or fully in a fluid then the buoyancy force is _______ the weight of fluid displaced by the body.

1. equal to
2. less than
3. more than
4. unpredictable

MCQ: When is a liquid said to be not in a boiling or vaporized state?

1. If the pressure on liquid is equal to its vapour pressure
2. If the pressure on liquid is less than its vapour pressure
3. If the pressure on liquid is more than its vapour pressure
4. Unpredictable

MCQ: Bulk modulus is the ratio of

1. shear stress to volumetric strain
2. volumetric strain to shear stress
3. compressive stress to volumetric strain
4. volumetric strain to compressive stress

MCQ: Which type of body is an airfoil?

1. streamline body
2. wave body
3. bluff body
4. induced body

MCQ: The body whose surface does not coincide with the streamline when places in a flow is called as

1. streamline body
2. wave body
3. bluff body
4. induced body

MCQ: The sum of components of shear forces in the direction of flow of fluid is called as

1. shear drag
2. friction drag
3. skin drag
4. all of the above

MCQ: The component of the total force exerted by fluid on a body in the direction parallel to the direction of motion is called as

1. lift
2. drag
3. both a. and b.
4. none of the above

MCQ: Boundary layer thickness is the distance from the boundary to the point where velocity of the fluid is

1. equal to 10% of free stream velocity
2. equal to 50% of free stream velocity
3. equal to 90% of free stream velocity
4. equal to 99% of free stream velocity

MCQ: Square root of the ratio of inertia force to elastic force is called as

1. Mach's Number
2. Cauchy's Number
3. Both a. and b.
4. None of the above

MCQ: Which of the following number is applicable in open hydraulic structure such as spillways, where gravitational force is predominant?

1. Reynold's Number
2. Euler's Number
3. Weber's Number
4. Froude's Number