301. A flow in which each liquid particle does not have a definite path and the paths of individual particles also cross each other, is called turbulent flow.
Agree
Disagree
✅ The correct answer is option A.
Hydraulics and Fluid Mechanics MCQs
302. The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is
✅ The correct answer is option B.
303. Falling drops of water become spheres due to the property of
surface tension of water
compressibility of water
capillarity of water
viscosity of water
✅ The correct answer is option A.
304. The hammer blow in pipes occurs when
there is excessive leakage in the pipe
the pipe bursts under high pressure of fluid
the flow of fluid through the pipe is suddenly brought to rest by closing of the valve
the flow of fluid thro
✅ The correct answer is option C.
305. The purpose of a surge tank is
to control the pressure variations due to rapid changes in the pipe line flow
to eliminate water hammer possibilities
to regulate flow of water to turbines by providing necessary retarding head of water
all of the above
✅ The correct answer is option D.
306. A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.
coincides with
lies below
lies above
✅ The correct answer is option B.
307. The metacentric height is the distance between the
centre of gravity of the floating body and the centre of buoyancy
centre of gravity of the floating body and the metacentre
metacentre and centre of buoyancy
original centre of buo
✅ The correct answer is option B.
308. An average value of coefficient of velocity is
0.62
0.76
0.84
0.97
✅ The correct answer is option D.
309. The hydraulic gradient line lies over the centre line of the pipe by an amount equal to the
pressure head
velocity head
pressure head + velocity head
pressure head – veloci
✅ The correct answer is option A.
310. The point at which the resultant pressure on an immersed surface acts, is known as
centre of gravity
centre of depth
centre of pressure
centre of immersed sur
✅ The correct answer is option C.