Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer
Q. Centrifugal head in Outward flow reaction turbine
a. Increases
b. Decreases
c. Remains constant
d. Gradually decreases
Q. Discharge in outward 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. Tendency of wheel to race is predominant in turbine
a. Inward flow reaction turbine
b. Outward flow reaction turbine
c. Impulse turbine
d. Axial flow turbine
Q. Outward flow reaction turbine will quite suitable for_
a. High head
b. Medium head
c. Low head
d. Static head
Q. In outward flow reaction turbine tangential velocity at inlet is always_ than outlet velocity.
a. Equal
b. Less
c. More
d. Constant
Q. In outward radial flow reaction turbine if angle made by absolute velocity with its tangent is 90 degrees and component of whirl is zero at inlet is
a. Radial inlet discharge
b. Radial outlet discharge
c. Flow ratio
d. Speed ratio
Q. The main difference between reaction turbine and outward radial flow reaction turbine is water flows
a. Radial direction
b. Radially inward
c. Radially outward
d. Axial direction
Q. In outward 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. Conical diffuser draft tube is also called
a. Straight divergent tube
b. Simple elbow tube
c. Thermal tube
d. Elbow tube with varying cross section
Q. Turbine that consists of moving nozzles and with fixed nozzles is called as
a. Impulse turbine
b. Curtis turbine
c. Rateau turbine
d. Reaction turbine
Q. An example of reaction turbine is_
a. Parsons turbine
b. Curtis turbine
c. Rateau turbine
d. Pelton wheel
Q. When we arrange turbine blades in multiple stages it is called
a. Pressure change
b. Vane deviation
c. Compounding
d. Pressure ratio
Q. Compounding is needed to
a. Increase Pressure
b. Decrease temperature
c. Change volume
d. Increase efficiency