Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer
Q. Inward radial flow reaction turbine is a turbine in which water flows across the blades of runner_
a. Radial direction
b. Radially inward
c. Radially outward
d. Axial direction
Q. Which of following is inward radial flow reaction turbine?
a. Pelton wheel
b. Francis turbine
c. Axial turbine
d. Kaplan turbine
Q. In Inward radial flow reaction turbine which is not required?
a. Runner
b. Air tight casing
c. Guide vanes
d. Breaking jet
Q. The main difference between reaction turbine and inward radial flow reaction turbine iswater flows
a. Radial direction
b. Radially inward
c. Radially outward
d. Axial direction
Q. In Inward radial flow reaction turbine the ratio of tangential wheel at inlet to given velocity of jet is known as
a. Speed ratio
b. Flow ratio
c. Discharge
d. Radial discharge
Q. In Inward radial flow reaction turbine the ratio of tangential velocity at inlet to the given velocity
a. Speed ratio
b. Flow ratio
c. Discharge
d. Radial discharge
Q. In Inward radial flow reaction turbine if angle made by absolute velocity with its tangent is 90 degrees and component of whirl is zero at outlet is
a. Radial inlet discharge
b. Radial outlet discharge
c. Flow ratio
d. Speed ratio
Q. In which of following turbine whirl component is zero?
a. Reaction turbine
b. Inward radial flow reaction turbine
c. Axial flow turbine
d. Impulse turbine
Q. Discharge in inward flow reaction turbine
a. Increases
b. Decreases
c. Remains constant
d. Gradually decreases
Q. Speed control of Outward flow reaction turbine is
a. Easy
b. Moderate
c. Difficult
d. Very difficult
Q. Centrifugal head in inward flow reaction turbine
a. Increases
b. Decreases
c. Remains constant
d. Gradually decreases
Q. Tendency of wheel to race is almost nil in turbine
a. Inward flow reaction turbine
b. Outward flow reaction turbine
c. Impulse turbine
d. Axial flow turbine
Q. The formation of vapour cavities is called
a. Static pressure drop
b. Cavitation
c. Isentropic expansion
d. Emulsion
Q. Voids are created due to
a. Reaction ratio
b. Pressure ratio
c. Liquid free layers
d. Volumetric layers