Test: Viscous Flow - 1 - Mechanical Engineering MCQ

the fluid is ideal

the fluid is viscous

the Reynolds number is less than 2000

there is considerable lateral dispersion of smoke or dye injected into the flow stream '

1.5 m/s

2.2 m/s

2.5 m/s

3 m/s

velocity of the fluid

density of the fluid

diameter of the pipe

length of the pipe

Euler’s equation

Reynolds equation

Navier-Stokes equations

Hagen-Poiseuille equations

pressure, viscous and turbulence

gravity, pressure and viscous

gravity, pressure and turbulence

pressure, gravity, turbulence and viscous

energy

mass

pressure

momentum

is constant over the cross-section

varies parabolically across the section

varies as three-halves power of distance from the mid-point

is maximum at the center, zero at the plates and the variation in between is linear

3.33

2

1.33

2.33

varies directly as distance from the mid-plane

varies inversely as distance from the midplane

varies parabolically across the gap

remains constant across the gap

1 m/s

1.5  m/s

2 m/s

2.5 m/s