Top 350+ Solved Turbine MCQ Questions Answer
Q. Hydrodynamic cavitation is due to the process of
a. Vaporisation
b. Sedimentation
c. Filtration
d. Excavation
Q. The process of bubble generation leads to
a. High temperatures
b. High pressures
c. High energy densities
d. High volumetric ratio
Q. Degree of reaction turbine is the ratio of?
a. Pressure energy to total energy
b. Kinetic energy to total energy
c. Potential energy to total energy
d. Kinetic energy to potential energy
Q. Which of these options are best suited for the total energy change inside the runner per unit weight?
a. Degree of action
b. Degree of reaction
c. Turbulence
d. Efficiency of turbine
Q. Which of these ratios are termed to be hydraulic efficiency?
a. Water power to delivered power
b. Delivered power to input power
c. Power lost to power delivered
d. Runner power to water power
Q. When a container containing a liquid is rotated, then due to centrifugal action, then which of these energies are changed?
a. Kinetic energy
b. Pressure energy
c. Potential energy
d. Energy due to viscous force
Q. Discharge through a reaction flow reaction turbine is given by, Q =
a. Pi*d*b*Vf1
b. Pi*d*d*b*Vf1
c. Pi*d*b*b*Vf2
d. Pi*b*b*Vf1
Q. When the thicknesses of vanes are to be considered in the discharge of a turbine, what will be the area under consideration?
a. Pi*d – n*t
b. Pi*d – n*n*t
c. Pi*d – t*t
d. Pi*d *d– n*t
Q. means the angle made by absolute velocity with the tangent on the wheel is 90 degrees and the component of whirl velocity is zero.
a. Axial discharge
b. Tangential discharge
c. Turbulent discharge
d. Radial discharge
Q. In a Francis turbine, degree of reaction lies between
a. 0 and 1
b. 1 and 2
c. 0 and 0.5
d. 0.5 and 0.1
Q. The water from penstocks enters the which is spiral in shape which the area of cross section of casing goes on decreasing gradually
a. guide wheel
b. draft tube
c. casing
d. runner
Q. If the water flows from inwards to outwards, the turbine is known as
a. Tangential flow turbine
b. Turbulent low inward flow
c. Inward flow turbine
d. Outward flow turbine
Q. In general, reaction turbines consist of which types of energies?
a. kinetic energy and potential energy
b. potential energy and pressure energy
c. kinetic energy and pressure energy
d. gravitational energy and potential energy
Q. is a circular wheel on which a series of smooth, radial curved vanes are fixed.
a. Guide wheel
b. Runner
c. Casing
d. Draft tube