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20 Cards in this Set
- Front
- Back
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Temperature is defined as:
A. how hot it is. B. the level of heat. C. how cold it is. D. why it is hot |
B. the level of heat.
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State the standard condition for water to boil at 212°F.
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At atmospheric pressure of 14.696 psia or 29.92 in Hg.
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List four types of temperature scales.
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Fahrenheit, Celcius, Rankin, and Kelvin.
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Under standard conditions water freezes at _____ Celcius.
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0 Degrees Celcius
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Molecular motion stops at _____ Fahrenheit.
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-460° Fahrenheit
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One British thermal unit will raise the temperature of ____ lb. of water ____ Fahrenheit.
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One pound of water one degree fahrenheit.
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In which direction does heat flow?
A. from a cold substance to a cold substance. B. up. C. down. D. from a warm substance to a cold substance. |
D. from a warm substance to a cold substance.
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Describe heat transfer by conduction.
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Heat transfers from molecule to molecule.
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A rise in sensible heat causes:
A. a rise in a thermometer. B. a fall in a thermometer. C. no change in a thermometer. D. ice to melt. |
A. a rise in a thermometer.
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Latent heat causes:
A. arise in a thermometer. B. temperature to rise. C. a change of state. D. temperature to fall. |
C. a change of state.
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Describe how heat is transfered by convection.
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It moves by moving in a medium such as air or water.
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Describe how heat is transfered by radiation.
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It is transfered through space without heating the space and heats the first solid object.
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Specific heat is the amount of heat necessary to raise the temperature of 1 lb of a ______ 1 degree fahrenheit.
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Substance
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Atmospheric pressure at sea level under standard conditions is ____ inches of mercury (Hg) or ____ pounds per square inch absolute (psia).
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29.92 in Hg, 14.696 psia.
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Describe the difference between a mercury and an aneroid barometer.
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A mercury barometer is a standing column of mercury supported by the atmosphere. An aneroid barometer is an enclosed chamber that moves with pressure and registers on a dial.
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Pressure inside a Bourdon tube pressure gage causes the Bourdon tube to straighten or curl?
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Straighten
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To change from psig to psia you must add ____ to psig.
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14.696
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Convert 80° Fahrenheit to Celcius.
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26.7°C
(80°F - 32) ÷ 1.8 = 26.66 |
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Convert 22° Celcius to Fahrenheit.
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71.6°F
(22°C x 1.8) + 32 = 71.6 |
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convert 70 psig to kPa (kilopascal)
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70 psig x 6.89 = 482.3 kPa.
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