Top 350+ Solved Hydraulics and Fluid Mechanics MCQ Questions Answer

From 376 to 390 of 444

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)

  • a. pressure energy + kinetic energy + potential energy

Q. A notch is used to measure

a. pressure

b. Disagree

c. velocity

d. volume

  • b. Disagree

Q. The most efficient section of a channel is

a. triangular

b. rectangular

c. square

d. trapezoidal

  • d. trapezoidal

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

  • d. the available head of liquid is les than 5 times the height of orifice

Q. Water is a

a. real

b. ideal

c. newtonian

d. non-newtonian

  • c. newtonian

Q. The body will sink down if the force of buoyancy is

a. equal to

b. less than

  • b. less than

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

  • b. one-fourth

Q. The viscosity of water at 20? C is

a. one stoke

b. one centistroke

c. one poise

d. one centipoise

  • d. one centipoise

Q. A thick liquid like a syrup has a

a. lesser

b. greater

  • b. greater

Q. Laminar flow

a. takes

b. does not take

  • a. takes
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