# Hydraulics And Fluid Mechanics Set 7

This set of Hydraulics and Fluid Mechanics Multiple Choice Questions & Answers (MCQs) focuses on Hydraulics And Fluid Mechanics Set 7

Q1 | 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.
Q2 | An ideal flow of any fluid must fulfill the following
Q3 | The flow in a pipe or channel is said to be uniform when
Q4 | Surface tension
Q5 | Select the wrong statement
Q6 | manometers because Alcohol is used in
Q7 | If no resistance is encountered by displacement, such a substance is known as
Q8 | The kinematic viscosity is the
Q9 | The viscosity of water is __________ than that of mercury.
Q10 | Surface energy per unit area of a surface is numerically equal to
Q11 | The specific weight of sea water is __________ that of pure water.
Q12 | Which of the following instruments is used to measure flow on the application of Bernoulli's theorem?
Q13 | The depth of the centre of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is
Q14 | An internal mouthpiece is said to be running free if the length of the mouthpiece is __________the diameter of the orifice.
Q15 | An ideal flow of any fluid must satisfy
Q16 | The height of a water column equivalent to a pressure of 0.15 MPa is
Q17 | The region between the separation streamline and the boundary surface of the solid body isknown as
Q18 | Froude number is significant in
Q19 | The ratio of specific weight of a liquid to the specific weight of pure water at a standardtemperature is called
Q20 | A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to
Q21 | The total head of a liquid particle in motion is equal to
Q22 | Free surface of a liquid tends to contract to the smallest possible area due to force of
Q23 | The Metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select thecorrect statement.
Q24 | The rise or depression of liquid in a tube due to surface tension will increase in size of tube will
Q25 | The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)