Top 350+ Solved Turbine MCQ Questions Answer
Q. Specific speed develop a hydraulic flow through the centrifugal pumps.
a. True
b. False
c. none
d. none
Q. Specific speed is the speed of the turbine which is similar to its
a. Temperature difference
b. Pressure difference
c. Aspect ratio
d. Speed of rotor
Q. Specific speed develops a unit power under a unit
a. Temperature
b. Pressure
c. Volume of the flow
d. Head
Q. Impeller in a motor is used to
a. Change temperatures
b. Change Pressure
c. Kinetic energy change
d. Change density
Q. Hydraulic head is also called as
a. Pressure head
b. Density head
c. Kinetic head
d. Piezometric head
Q. Specific speed of a Pelton wheel with single jet is
a. 8.5 to 30
b. 30 to 51
c. 51 to 225
d. 230 to 500
Q. Specific speed is an index used to predict
a. Head race distance
b. Tail race distance
c. Tank dimensions
d. Turbine performance
Q. Specific speed of a Pelton wheel with multiple jets is
a. 8.5 to 30
b. 30 to 51
c. 51 to 225
d. 230 to 500
Q. Specific speed less than 500 are called
a. Positive displacement pumps
b. Negative displacement pumps
c. Draft tubes
d. Tanks
Q. With the increase in specific speeds,
a. Head race distance increases
b. Tail race distance increases
c. Tank dimensions increases
d. Diameters of impeller increases
Q. Specific speed is used to predict desired pump or turbine performance.
a. True
b. False
c. none
d. none