Fluid Statics & Dynamics

An object moving through a fluid experience a retarding force called:

• Drag force

• Gravitational force

• Terminating force

• Frictional force

When weight of an object falling freely becomes equal to the drag force, then the body will move with:

• Increasing speed

• Decreasing speed

• Constant speed

• Constant acceleration

Tags

NGSS.HS-PS2-1

Turbulent flow is

• Unsteady and regular

• Steady and regular

• Unsteady and irregular

• Constantly Increasing

According to equation of continuity, A₁V₁ = A₂V₂ = constant. The constant is equal to:

• Flow rate

• Volume of fluid

• Mass of fluid

• Density of fluid

Velocity of fluid increases where the pressure differential is:

• Lower

• Greater

• Constant

• Zero

If cross-sectional area of pipe decreases, the speed of fluid must increase according to:

• Continuity equation

• Bernoulli's equation

• Torricelli's theorem

• Venture relation

Laminar flow is

• Unsteady and regular

• Steady and regular

• Unsteady and irregular

• Chaotic

Friction factor depends on

• Reynolds number

• diameter of pipe

• roughness of pipe material

• all of above

If every particle of fluid has irregular flow, then flow is said to be laminar flow.

• TRUE

• FALSE

Water

• is a Compressible liquid

• is an Incompressible liquid

• Gatorade not only quenches your thirst better, it tastes better too, idiot

• is hydrated HO

Tags

NGSS.HS-ESS2-5