✅ The correct answer is option D.
Hydraulics and Fluid Mechanics MCQs
The vacuum pressure is always the negative gauge pressure.
Yes
No
✅ The correct answer is option A.
The factional resistance of a pipe varies approximately with __________ of the liquid.
pressure
velocity
square of velocity
cube of velocity
✅ The correct answer is option C.
An air vessel is provided at the summit in a syphon to
avoid interruption in the flow
increase discharge
increase velocity
maintain pressure diff
✅ The correct answer is option A.
The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is
200 kg/m3
400 kg/m3
600 kg/m3
800 kg/m3
✅ The correct answer is option D.
Euler’s number is the ratio of __________ force to pressure force.
inertia
gravity
viscous
✅ The correct answer is option A.
The property of a liquid which controls its rate of flow is called viscosity.
TRUE
FALSE
✅ The correct answer is option A.
A flow whose streamline is represented by a straight line, is called __________ dimensional flow.
one
two
three
four
✅ The correct answer is option A.
The specific weight of water in S.I. units is taken as
9.81 kN/m3
9.81 x 103 kN/m3
9.81 x 10-6 N/mm3
any one of these
✅ The correct answer is option A.
Bernoulli’s equation is applied to
venturimeter
orifice meter
pitot tube
all of these
✅ The correct answer is option D.