Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer
Q. The characteristic curves of a centrifugal pump, plots required by the pump.
a. Velocity
b. Pressure
c. NPSH
d. Velocity and pressure View Answer
Q. Which among the following is not a characteristic curve for centrifugal pump?
a. Transfer speed vs Transfer pressure
b. Head vs Flow rate
c. Power input vs pump efficiency
d. Specific speed vs pump efficiency View Answer
Q. The consequence of Newtons second law is
a. Conservation of angular momentum
b. Conservation of mass
c. Conservation of potential energy
d. Conservation of kinetic energy View Answer
Q. Which of the following is taken into account during a characteristic curve?
a. Flow rate
b. Cavitation
c. Tolerances
d. Casing View Answer
Q. As the specific speed increases, the slope of HQ curve
a. Decreases
b. Increases
c. Independent
d. Remains the same View Answer
Q. The primary selection tool is called as
a. Pump curve
b. Speed curve
c. Power curve
d. Fluid curve View Answer
Q. Voids are created due to
a. Reaction ratio
b. Pressure ratio
c. Liquid free layers
d. Volumetric layers View Answer
Q. Cavitation usually occurs due to the changes in
a. Pressure
b. Temperature
c. Volume
d. Heat View Answer
Q. Degree of reactions are most commonly used in
a. Turbomachinery
b. Pressure drag
c. Aerodynamics
d. Automobiles View Answer
Q. At high pressure, the voids can generate
a. Drag force
b. Mass density
c. Shock waves
d. Flow speed View Answer
Q. Voids that implode near metal surface develops a
a. Drag force
b. Cyclic stress
c. Shock waves
d. Flow speed View Answer
Q. Internal cavitation occurs due to
a. Drag force
b. Cyclic stress
c. Shock waves
d. Flow speed View Answer
Q. The velocities of the blade angles can be found out using
a. Mach number
b. Froude’s number
c. Velocity triangles
d. Reynolds number View Answer
Q. Hydrodynamic cavitation is due to the process of
a. Vaporisation
b. Sedimentation
c. Filtration
d. Excavation View Answer
Q. The process of bubble generation leads to
a. High temperatures
b. High pressures
c. High energy densities
d. High volumetric ratio View Answer