Formules Flashcards
Area= length x width
True
For a circular area is equal 0.7854 times the diameter. Diameter times itself
5”= 5 x 5 x 0.7854
Trues
Pressure = force divided by area
A force of 200 lb apply to an area of 4 sq ft is?
200 divided by 4 = 50 psi
True
Work = force times distance
True
Distance= work divided by force
True
Force= work divided by force
True
Power= force x distance divided time
True
Work= force x distance
True
A horse power equals to______ft lb of work per minute
33,000
Fahrenheit scale
32
Celcius scale
0
Rankine scale
460
Kelvin scale
273
778 ft lb equals a BTU
True
A BTU
970.3
A horse power
33.475
Developed horsepower
LB Ttimes evaporation devided by 34.5
Developed boiler horsepower with unknown evaporation factor
BTu minus Temperature minus 32 times lb of steam devided by 33.475
Horsepower of work
Ft lb divided by
Time times 33,000
Pyrometers measure
Air velocity
Draft
Super heater floe
Temperature
Temperature
A ringleman test is used to determine
CO2 in gases of combustion
Smoke density
Flame failure
Steam quality
Smoke density
A manometer is read in
Inches of water
Psig
Psia
Inches of water
Draft is measured with a
Pyrometer
Hydrometer
Manometer
Potentiometer
Manometer
Fuel oil with a high viscosity is
Hard to pump
Easy to pump
Hard to pump
