NATE/ICE Test Questions & Answers.
100% Accurate. Rated A+
formula to convert celsius to fahrenheit - ✔✔-F = (1.8 x C) + 32
formula to convert fahrenheit to celsius - ✔✔-C = .56 (F - 32)
specific heat - ✔✔-the amount of heat required to raise 1 lb of a substance 1 degree fahrenheit
sensible heat - ✔✔-Is the heat that came be measured or sensed by a thermometer
latent heat - ✔✔-hidden heat that changes the state of a substance
Btu - ✔✔-The amount of heat requires to raise one pound of water one degree Fahrenheit
The amount of heat that it takes to change 1 lb of 212 degrees Fahrenheit water to 1 lb of 212 steam is -
✔✔-970 Btu
that amount of heat requires to change 1 lb of 32 degrees Fahrenheit ice to 1 lb of 32 water is - ✔✔-144
Btu
conduction - ✔✔-Is the transfer of heat from one molecule to another
convection - ✔✔-The transfer of heat from one place to another by fluid
radiation - ✔✔-The transfer of heat from a heat source to a solid object through space
, one ton of refrigerant is equivalent to _____ But per hour - ✔✔-12,000
when a substances changes from liquid to gas is - ✔✔-latent heat of vaporization
when a substance changes from gas to a liquid is called - ✔✔-latent heat of condensation
when a substance changes from a solid to a gas - ✔✔-sublimation
an _____ refrigerant is a mixture of two or more refrigerants that performs as a single component
refrigerant - ✔✔-azeotropic
a _____ refrigerant is a mixture of two or more refrigerants that have different boiling points - ✔✔-near-
azeotropic
a _____ refrigerant is a mixture of two or more refrigerants that have different boiling points - ✔✔-
zeotropic
a _____ refrigerant is a blend of three refrigerants that acts as a zeotropic refrigerant - ✔✔-ternary
zeotropic and near-azeotropic refrigerant must be charged into a system as a _____ or the refrigerant
will change it's composition - ✔✔-liquid
dewpoint line - ✔✔-used to measure superheat
bubble like - ✔✔-used to measure subcooling
temperature glide - ✔✔-The temperature difference between the vapor and liquid state of a near-
azeotropic, a zeotropic, and ternary blend refrigerant
an zeotropic refrigerant has a temperature glide of _____ - ✔✔-zero
100% Accurate. Rated A+
formula to convert celsius to fahrenheit - ✔✔-F = (1.8 x C) + 32
formula to convert fahrenheit to celsius - ✔✔-C = .56 (F - 32)
specific heat - ✔✔-the amount of heat required to raise 1 lb of a substance 1 degree fahrenheit
sensible heat - ✔✔-Is the heat that came be measured or sensed by a thermometer
latent heat - ✔✔-hidden heat that changes the state of a substance
Btu - ✔✔-The amount of heat requires to raise one pound of water one degree Fahrenheit
The amount of heat that it takes to change 1 lb of 212 degrees Fahrenheit water to 1 lb of 212 steam is -
✔✔-970 Btu
that amount of heat requires to change 1 lb of 32 degrees Fahrenheit ice to 1 lb of 32 water is - ✔✔-144
Btu
conduction - ✔✔-Is the transfer of heat from one molecule to another
convection - ✔✔-The transfer of heat from one place to another by fluid
radiation - ✔✔-The transfer of heat from a heat source to a solid object through space
, one ton of refrigerant is equivalent to _____ But per hour - ✔✔-12,000
when a substances changes from liquid to gas is - ✔✔-latent heat of vaporization
when a substance changes from gas to a liquid is called - ✔✔-latent heat of condensation
when a substance changes from a solid to a gas - ✔✔-sublimation
an _____ refrigerant is a mixture of two or more refrigerants that performs as a single component
refrigerant - ✔✔-azeotropic
a _____ refrigerant is a mixture of two or more refrigerants that have different boiling points - ✔✔-near-
azeotropic
a _____ refrigerant is a mixture of two or more refrigerants that have different boiling points - ✔✔-
zeotropic
a _____ refrigerant is a blend of three refrigerants that acts as a zeotropic refrigerant - ✔✔-ternary
zeotropic and near-azeotropic refrigerant must be charged into a system as a _____ or the refrigerant
will change it's composition - ✔✔-liquid
dewpoint line - ✔✔-used to measure superheat
bubble like - ✔✔-used to measure subcooling
temperature glide - ✔✔-The temperature difference between the vapor and liquid state of a near-
azeotropic, a zeotropic, and ternary blend refrigerant
an zeotropic refrigerant has a temperature glide of _____ - ✔✔-zero
