real fluid
ideal fluid
newtonian fluid
non-newtonian fluid
✅ The correct answer is option B.
Hydraulics and Fluid Mechanics MCQs
The highest efficiency is obtained with a channel of __________ section.
circular
square
rectangular
trapezoidal
✅ The correct answer is option D.
The power transmitted through the nozzle is maximum when the head lost due to friction in the pipe is __________ of the total supply head.
one-half
one-third
two-third
✅ The correct answer is option B.
The flow of water through the hole in the bottom of a wash basin is an example of
steady flow
uniform flow
free vortex
forced vortex
✅ The correct answer is option C.
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.
H/3
H/2
2H/3
3H/4
✅ The correct answer is option C.
The mercury does not wet the glass. This is due to the property of the liquid known as
cohesion
adhesion
viscosity
surface tension
✅ The correct answer is option D.
The centre of pressure for a vertically immersed surface lies at a distance equal to __________ the centre of gravity.
below
above
below
above
✅ The correct answer is option A.
In a lockgate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock)
P / 2sinα
✅ The correct answer is option C.
The specific weight is also known as weight density.
Correct
Incorrect
✅ The correct answer is option A.
The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)
w
wh
w/h
h/w
✅ The correct answer is option B.