Top 150+ Solved Hydraulics MCQ Questions Answer
Q. Head loss due to entry.
a. h = 0.5 V12/2g
b. h = 0.5 V22/2g
c. h = (V2 – V3)2/2g
d. h = 0.5 V32/2g
Q. Head loss due to exist.
a. h = 0.5 V12/2g
b. h = 0.5 V22/2g
c. h = (V2 – V3)2/2g
d. h = 0.5 V32/2g
Q. Head loss due to sudden contraction.
a. h = 0.5 V12/2g
b. h = 0.5 V22/2g
c. h = (V2 – V3)2/2g
d. h = 0.5 V32/2g
Q. Head loss due to sudden enlargement.
a. h = 0.5 V12/2g
b. h = 0.5 V22/2g
c. h = (V2 – V3)2/2g
d. h = 0.5 V32/2g
Q. Head loss due to fitting in pipe.
a. h = 0.5 V12/2g
b. h = Kb V2/2g
c. h = (V2 – V3)2/2g
d. h = Kf V2/2g
Q. Head loss due to bend in pipe.
a. h = 0.5 V12/2g
b. h = 0.5 V22/2g
c. h = (V2 – V3)2/2g
d. h = 0.5 V32/2g
Q. In ___________ Reynolds carried out number of to decide the type of flow.
a. 1823
b. 1833
c. 1843
d. 1853
Q. In Reynolds experiment, the dye thread will move so steadily that it will be hardly seen to be in motion. Such a flow is known as
a. Laminar flow
b. Transition flow
c. Turbulent flow
d. None of the above
Q. Such a velocity, at which the dye thread starts becoming irregular is known as
a. lower critical velocity.
b. upper critical velocity
c. critical velocity
d. None of the above
Q. Such a velocity at which the whole dye thread is diffused, is known as
a. lower critical velocity.
b. upper critical velocity
c. critical velocity
d. None of the above
Q. In Reynolds experiment, beyond the upper critical velocity, the flow will be fully disturbed and such a flow is known as
a. Laminar flow
b. Transition flow
c. Turbulent flow
d. None of the above
Q. If pressure heads (P/w) of a liquid Bowing in a pipe be plotted as vertical ordinates on the center line of the pipe, then the line joining the tops of such ordinates is known as
a. Hydraulic Line
b. Hydraulic Gradient Line
c. Total Energy Line
d. Energy Line
Q. If the sum of pressure heads and velocity heads [(p/w) + (v2 /2g)] of a liquid flowing In a pipe be plotted as vertical ordinates on the centre line of the pipe. then the line joining the tops ofsuch ordinates is known as
a. Hydraulic Line
b. Hydraulic Gradient Line
c. Total Energy Line
d. Energy Line
Q. A nomogram is a graph in which lines representing different variables are arranged at certain distances is known as
a. Hazen Nomogram
b. William Nomogram
c. Hazen-William Nomogram
d. None of the above