Top 150+ Solved Hydraulics MCQ Questions Answer
Q. The imaginary line, drawn in the fluid E in such a way that the tangent to any point gives thedirection of motion (velocity) at the point is called
a. stream line
b. streak line
c. potential line
d. stream tube
Q. The instantaneous pictures of the position of all fluid particles, which have passed through agiven point at some previous time, are called
a. stream line
b. streak line
c. potential line
d. stream tube
Q. The lines joining the points of equal potential (head) on adjacent low lines are called
a. stream line
b. streak line
c. potential line
d. stream tube
Q. An element of fluid bonded by a number of stream lines, which confine the flow, is called
a. stream line
b. streak line
c. potential line
d. stream tube
Q. If Reynolds Number is between 2000 to 4000, the type of flow is,
a. Laminar flow
b. Transition flow
c. Turbulent flow
d. None of the above
Q. If Reynolds Number is less than 2000, the type of flow is,
a. Laminar flow
b. Transition flow
c. Turbulent flow
d. None of the above
Q. If Reynolds Number is greater than 4000, the type of flow is,
a. Laminar flow
b. Transition flow
c. Turbulent flow
d. None of the above
Q. “For a fluid flowing throw the pipe the quantity of fluid passing per second is constant at all section.” This is statement of
a. Pascal’s law
b. Continuity equation
c. Bernoulli’s equation
d. Darcy’s law
Q. The diameters of a pipe at the sections 1 and 2 are 10 cm and15 cm respectively. Find the discharge through the pipe if the velocity of water flowing through the pipe at section 1 is 5 m/s.
a. 0.00393 m3/sec
b. 0.0393 m3/sec
c. 0.393 m3/sec
d. 3.93 m3/sec
Q. Liquid is flowing through 200 mm diameter tube with mean velocity of 2 m/sec. If density ofliquid is 912 kg/m3and viscosity is0.38 N.S/m2find type of flow.
a. Laminar flow
b. Transition flow
c. Turbulent flow
d. None of the above
Q. The diameters of a pipe at the sections 1 and 2 are 10 cm and15 cm respectively. The velocityof water flowing through the pipe at section 1 is 5 m/s. Determine the velocity at section 2.
a. 0.22 m/sec
b. 0.45 m/sec
c. 2.22 m/sec
d. 4.40 m/sec
Q. The energy possessed by a liquid particle by virtue of its position is known as
a. potential energy
b. kinetic energy
c. pressure energy
d. friction energy
Q. The energy possessed by a liquid particle by virtue of its existing pressure is known as
a. potential energy
b. kinetic energy
c. pressure energy
d. friction energy
Q. The energy possessed by a liquid particle by virtue of its velocity or motion is known as
a. potential energy
b. kinetic energy
c. pressure energy
d. friction energy
Q. “In a steady, ideal flow of an incompressible fluid, the total energy at any point of the fluid is constant."This is statement of
a. Pascal’s law
b. Continuity equation
c. Bernoulli’s equation
d. Darcy’s law