Hydraulics And Fluid Mechanics Set 12

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This set of Hydraulics and Fluid Mechanics Multiple Choice Questions & Answers (MCQs) focuses on Hydraulics And Fluid Mechanics Set 12

Q1 | A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6m, then the weight of the body is
Q2 | The force per unit length is the unit of
Q3 | When the Mach number is more than 6, the flow is called
Q4 | The upper surface of a weir over which water flows is known is
Q5 | One cubic metre of water weighs
Q6 | Kinematic viscosity is dependent upon
Q7 | The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)
Q8 | An error of 1% in measuring head over the apex of the notch (H) will produce an error of _________ in discharge over a triangular notch.
Q9 | The Euler's equation for the motion of liquids is based upon the assumption that
Q10 | The ratio of the inertia force to the viscous force is called
Q11 | The total energy of a liquid particle in motion is equal to
Q12 | Which of the following instrument can be used for measuring speed of a submarine moving in deep sea?
Q13 | The force present in a moving liquid is
Q14 | A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water?
Q15 | The flow in which the velocity vector is identical in magnitude and direction at every point, for anygiven instant, is known as
Q16 | The coefficient of discharge for an external mouthpiece depends upon
Q17 | The specific weight of water is 1000 kg/m3
Q18 | If the depth of water in an open channel is greater than the critical depth, the flow is called
Q19 | When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as
Q20 | The body will sink down if the force of buoyancy is __________ the weight of the liquid displaced.
Q21 | The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be
Q22 | The velocity at which the laminar flow stops, is known as
Q23 | The line of action of the buoyant force acts through the
Q24 | The buoyancy depends upon the
Q25 | Two dimensional flows occurs when