Top 350+ Solved Turbine MCQ Questions Answer
Q. Jet propulsion works on the principle of
a. Newton’s first law
b. Newton’s second law
c. Newton’s third law
d. Thermodynamic properties
Q. What does Cv in jet propulsion equation stand for?
a. Area of orifice
b. Velocity
c. Temperature coefficient
d. Velocity coefficient
Q. The movement of ships and boats in water is due to
a. Water currents
b. Jet propulsion
c. Mass flow rate
d. Volumetric changes
Q. In which of the following type of runners the velocity of whirl at inlet is greater than the blade velocity?
a. Such a case is practically impossible
b. Slow Runner
c. Medium Runner
d. Fast Runner
Q. In the figure shown below,which of the following angles replace the question mark?
a. Guide vane angle at inlet
b. Blade angle at inlet
c. Vane angle at inlet
d. Blade angle at outlet
Q. In the figure shown below, which of the following type of runners has the bladecurvature as shown in the above figure (The arrow denotes direction of blade motion)?
a. Information insufficient to determine
b. Slow Runner
c. Medium Runner
d. Fast Runner
Q. Francis turbine is typically used for which of the following values of available heads?
a. 300 m
b. 100 m
c. 30 m
d. 5 m
Q. Power developed by Francis turbine are calculated for a certain set of conditions. Now, the inlet whirl velocity is doubled, the blade velocity at inlet is doubled and the flow velocity is quartered. The power developed:
a. Is 4 times the original value
b. Is 2 times the original value
c. Is ½ times the original value
d. Is same as the original value
Q. The flow rate of the water flow in a Francis turbine is increased by 50% keeping all the other parameters same. The work done by the turbine changes by?
a. 50% increase
b. 25% increase
c. 100% increase
d. 150% increase