2025 | COMPLETE QUESTIONS AND CORRECT
ANSWERS | GRADED A+ | VERIFIED ANSWERS |
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,Terms in this set (106)
At 0 PSIG, how many BTU are necessary to change 1 lb of water at 212 degrees Fahrenheit into 1 lb of steam? a) 1
b) 180
c) 970
d) 1,190
Radiation is
a) the movement of liquids or gases created by a temperature difference.
b) the transfer of heat by direct molecular contact. c) the weight of a substance compared to unity.
d) a form of heat transfer by waves.
Steam at 100 PSI and 400 degrees Fahrenheit is a) saturated.
b) wet.
c) superheated.
d) none of the above.
,Which of the following most closely defines sensible heat?
a) An established relationship comparing any substance to the heat content of water
b) Heat quantity that can be felt or measured by a thermometer.
c) Heat quantity above the point of saturation
d) Measure of heat intensity.
What is required to raise the temperature of 1 lb of water from 32 degrees to 212 degrees Fahrenheit? a) 144 Btu
b) 180 Btu
c) 970.3 Btu
d) Saturated heat
, Increasing the pressure has what effect on the boiling point of water? a) No change
b) Temperature will be lowered
c) Temperature will be raised
d) Temperature will increase 2 degrees Fahrenheit for every PSI
Heat absorbed by water when it changes from liquid to steam at the boiling point is called a) sensible heat.
b) latent heat.
c) specific heat.
d) superheat
Heat may be transferred in how many ways? a) One
b) Two
c) Three
d) Four