# Hydraulics And Fluid Mechanics Set 8

This set of Hydraulics and Fluid Mechanics Multiple Choice Questions & Answers (MCQs) focuses on Hydraulics And Fluid Mechanics Set 8

Q1 | The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.
Q2 | The line of action of the buoyant force acts through the Centroid of the
Q3 | The intensity of pressure at any point, in a liquid, is
Q4 | During the opening of a valve in a pipe line, the flow is
Q5 | A manometer is used to measure
Q6 | For hypersonic flow, the Mach number is
Q7 | The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta)
Q8 | For pipes, laminar flow occurs when Reynolds number is
Q9 | When the flow in an open channel is gradually varied, the flow is said to be
Q10 | In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, thenthe mouthpiece is said to be
Q11 | The units of kinematic viscosity are
Q12 | The length of a liquid stream while flowing over a weir __________ at the ends of the sill.
Q13 | Newton's law of viscosity is a relationship between
Q14 | The total energy line lies over the hydraulic gradient line by an amount equal to the
Q15 | Choose the wrong statement
Q16 | In open channels, the specific energy is the
Q17 | For a floating body to be in stable equilibrium, its metacentre should be
Q18 | A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is
Q19 | Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surfacewill be
Q20 | If a body floating in a liquid occupies a new position and remains at rest in this new position, when given a small angular displacement, the body is said to be in __________ equilibrium.
Q21 | A streamline is defined as the line
Q22 | The flow in a pipe or channel is said to be non-uniform when
Q23 | Hydrometer is used to determine
Q24 | The dynamic viscosity of the liquid __________ with rise in temperature.
Q25 | For pipes, turbulent flow occurs when Reynolds number is