Chapters 18 and 19 Flow and Final Fontenot

A compressible fluid is a fluid where the volume and density change when the fluid is subjected to a change in pressure

True

Standard conditions are an accepted set of temperature and pressure conditions used as a basis for measurement 

True

The type of fluid is the most important characteristic of a fluid that affects flow

True

A flow profile is a representation of the velocity of a fluid at different points across a pipe or duct

True

Density is the pressure and temperature of a gas or vapor at the point of measurement 

False

Smooth flow is fluid flow in which the flow profile is a flattened parabola, the streamlines are not present, and the fluid is freely intermixing

False

____ is the ratio of the density of a fluid to the density of a reference fluid

Specific gravity

____ viscosity is the resistance to flow of a fluid and has units of centipoise (cp)

Absolute

A(n) ____fluid is a fluid where there is very little change in volume when the fluid is subjected to change in pressure

Incompressible

A streamline is a line that shows the direction and ____ of smooth flow at every point across a pipe profile

Magnitude

___ is the quantity of fluid that passes a point during a specific time interval 

Total flow

___ is the quantity of fluid passing a point at a particular moment

Flow rate

If the absolute pressure on a gas is doubled while the temperature is held constant, the volume of the gas is ____

Halved

The vena contracta is the point of lowest pressure and highest velocity downstream from a primary flow element

Ch. 19

True

A low-loss flow tube is a primary flow element consisting of an arodynamix internal cross section with the low-pressure connection at the throat

Ch19

True

Flow measurement is only accurate as long as flowing conditions remain the same as when the system was designed 

Ch19

True

Pressure-sensing taps are located in piping a fixed distance upstream and downstream of a flow nozzle

Ch19

True

A blocking valve is a valve used at a differential measuring instrument to equalize high and low pressure sides of the differential instrument 

Ch19

True

When liquid flow is measured, the presence of air bubbles in the impulse lines improves the measurement accuracy 

False

____ is the ratio of maximum flow to minimum measurable flow at a desired measurement accuracy.

Ch19

Rangeability

A Venturi tube is a pipeline restriction that causes a ___ used to measure flow.

Pressure drop

When steam flow is measured, the measuring instrument must be located ___ the flow element.

Ch19

Below

An ___ is the tubing or piping connection that connects flow meter taps to any differential pressure instruments. 

Ch19

Impulse line

An ____ is a primary flow element consisting of a thin circular metal plate with a sharp-edged round hole in it and a tab that protrudes from the flanges.

Ch19

Orfice plate

Bernoulli determined that ___ was present at any point in a closed pipe.

Ch 19

All of the above (below)

Static head due to elevation

Static head due to applied pressure

Velocity head