DETERMINATION OF STATIC, VELOCITY AND TOTAL PRESSURE USING MANOMETERS AND PITOT TUBE

Question 1

The pitot tube was invented by

Answer 1

Henri Pitot

Question 2

, Bernoulli’s equation states

Answer 2

Stagnation pressure = static pressure + dynamic pressure

Question 3

The fluid flow rate in a duct can then be estimated from:

Answer 3

Volume flow rate (cubic feet per minute) = duct area (square feet) × flow velocity (feet per minute)

Question 4

t is the analysis of an applied force by a fluid (liquid or gas) on a
surface. Pressure is typically measured in units of force per unit of surface area. Many
techniques have been developed for the measurement of pressure and vacuum.

Answer 4

Pressure measurement

Question 5

directional component of pressure in a moving

fluid is

Answer 5

dynamic pressure

Question 6

is a device used to measure the fluid flow measurement invented by Henri
Pitot, a French engineer in 18th century.
It is widely to measure the airspeed of aircrafts, speedboat speed and for fluid flow
measurement in industrial application. Pitot tube measures the pressure point in
contact.

Answer 6

Pitot tube

Question 7

Advantages of pitot tube.

Answer 7

Small and do not contain any moving parts
Low cost
Low permanent pressure loss.
Ease of installation into an existing system

Question 8

Disadvantages of pitot tube

Answer 8

Foreign material in a fluid can easily clog pitot tube and disrupt normal reading as a result.
Low accuracy
Low rangeability

Question 9

is also a measure of the amount that fluid pressure exceeds local
atmospheric pressure, but it includes the effect of the fluid velocity converted to
pressure. It is measured through a flat opening that is perpendicular to the direction of
fluid flow and facing into the fluid flow.

Answer 9

Stagnation pressure

Question 10

l

Answer 10

l

Question 11

is used to determine
changes in air pressure that occur as the aircraft’s altitude changes. must be calibrated prior to flight to register the pressure as an altitude above
sea level. T

Answer 11

pressure altimeter, also known as the barometric altimeter

Question 12

is used to show the ratio of true airspeed in relation to the speed of sound.

Answer 12

machmeter

Question 13

is the pitot-static instrument used to determine whether or not an aircraft
is flying in level flight.[4] The vertical speed specifically shows the rate of climb or the
rate of descent, which is measured in feet per minute or meters per second.[4] The
vertical speed is measured through a mechanical linkage to a diaphragm located within
the instrument

Answer 13

variometer