Top 350+ Solved Hydraulics and Fluid Mechanics MCQ Questions Answer
Q. The total energy of a liquid particle in motion is equal to
a. pressure energy + kinetic energy + potential energy
b. pressure energy - (kinetic energy + potential energy)
c. potential energy - (pressure energy + kinetic energy)
d. kinetic energy - (pressure energy + potential energy)
Q. An orifice is said to be large, if
a. the size of orifice is large
b. the velocity of flow is large
c. the available head of liquid is more than 5 times the height of orifice
d. the available head of liquid is les than 5 times the height of orifice
Q. A weir is said to be narrow-crested weir, if the width of the crest of the weir is
a. equal to
b. less than
Q. A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a
a. notch
b. weir
c. mouthpiece
d. nozzle
Q. In a short cylindrical external mouthpiece, the vena contracta occurs at a distance
a. equal to
b. one-fourth
c. one-third
d. one-half
Q. The viscosity of water at 20? C is
a. one stoke
b. one centistroke
c. one poise
d. one centipoise