Formules Flashcards

1
Q

Area= length x width

A

True

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2
Q

For a circular area is equal 0.7854 times the diameter. Diameter times itself

5”= 5 x 5 x 0.7854

A

Trues

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3
Q

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

A

True

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4
Q

Work = force times distance

A

True

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5
Q

Distance= work divided by force

A

True

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6
Q

Force= work divided by force

A

True

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7
Q

Power= force x distance divided time

A

True

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8
Q

Work= force x distance

A

True

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9
Q

A horse power equals to______ft lb of work per minute

A

33,000

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10
Q

Fahrenheit scale

A

32

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11
Q

Celcius scale

A

0

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12
Q

Rankine scale

A

460

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13
Q

Kelvin scale

A

273

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14
Q

778 ft lb equals a BTU

A

True

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15
Q

A BTU

A

970.3

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16
Q

A horse power

A

33.475

17
Q

Developed horsepower

A

LB Ttimes evaporation devided by 34.5

18
Q

Developed boiler horsepower with unknown evaporation factor

A

BTu minus Temperature minus 32 times lb of steam devided by 33.475

19
Q

Horsepower of work

A

Ft lb divided by

Time times 33,000

20
Q

Pyrometers measure

Air velocity

Draft

Super heater floe

Temperature

A

Temperature

21
Q

A ringleman test is used to determine

CO2 in gases of combustion

Smoke density

Flame failure

Steam quality

A

Smoke density

22
Q

A manometer is read in

Inches of water

Psig

Psia

A

Inches of water

23
Q

Draft is measured with a

Pyrometer

Hydrometer

Manometer

Potentiometer

A

Manometer

24
Q

Fuel oil with a high viscosity is

Hard to pump

Easy to pump

A

Hard to pump

25
Q

The fyrite analyzer can be used to measured

Sulphur dioxide

Flyash

Oxygen

Pounds of steam per hour

A

Oxygen

26
Q

The orsat analyzer is used to determine the

Requiered chimney temperature

Combustion efficiency

Steam quality in the boiler

Heating value of the fuel

A

Combustion efficiency