Top 1000+ Solved Fluid Mechanics (FM) MCQ Questions Answer
Q. When bypass valve is opened to
a. Increase Pressure
b. Increase Unit speed
c. Increase Unit power
d. Increase the amount of fresh steam
Q. With the increase in load, Energy in the turbine
a. Decreases
b. Increases
c. Remains same
d. Independent
Q. When the mechanical speed of the shaft increases beyond 110 percent, we use
a. Throttle governing
b. Steam governing
c. Nozzle governing
d. Emergency governing
Q. When the balancing of the turbine is disturbed, we use
a. Throttle governing
b. Steam governing
c. Nozzle governing
d. Emergency governing
Q. The flow rate of steam is controlled by regulating the_
a. Steam
b. Pressure
c. Temperature
d. Speed
Q. Pascal-second is the unit of
a. pressure
b. kinematic viscosity
c. dynamic viscosity
d. surface tension
Q. An ideal fluid is
a. one which obeys Newton’s law of viscosity
b. frictionless and incompressible
c. very viscous
d. frictionless and compressible
Q. If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, thenthe kinematic viscosity of that fluid in stokes is
a. 0.25
b. 0.50
c. 1.0
d. none of the above
Q. The viscosity of a gas
a. decreases with increase in temperature
b. increases with increase in temperature
c. is independent of temperature
d. is independent of pressure for very high pressure intensities
Q. Newton’s law of viscosity relates
a. intensity of pressure and rate of angular deformation
b. shear stress and rate of angular deformation
c. shear stress, viscosity and temperature
d. viscosity and rate of angular deformation
Q. An open tank contains 1 m deep water with 50 cm depth of oil of specificgravity 0.8 above it. The intensity of pressure at the bottom of tank will be
a. 4 kN/m2
b. 10 kN/m2
c. 12 kN/m2
d. 14 kN/m2
Q. The position of center of pressure on a plane surface immersed vertically ina static mass of fluid is
a. at the centroid of the submerged area
b. always above the centroid of the area
c. always below the centroid of the area
d. none of the above