NATE QUESTIONS AND ANSWERS
Heat Anticipators - correct answer Are wired in series
Cooling anticipators - correct answer Are wired parallel
Low pressure switches detects - correct answer a loss of refrigerant
Low pressure switches de energizes - correct answer the compressor
Electronic air cleaners do not - correct answer remove odors
Electronic air cleaners normally are - correct answer 4000 to 8000 dc volts
Air handlers above a ceiling have to have - correct answer a secondary pan
Latent heat - correct answer changes the state of a substance but not the
temp
Always size a heat pump - correct answer By the cooling capacity
Sensible heat - correct answer You can always read on a thermometer
Demand Defrost is... - correct answer looking for the coil temp and the
ambient temp to increase to initiate a defrost
Package units... - correct answer the pad must be isolated from the structure
to reduce vibration and noise
Balance point - correct answer is where the heat loss and heat gain are the
same
, if water is not drained away from the outdoor unit - correct answer ice will
form on the coil and reduce capacity
Radiation - correct answer Method of heat transfer that does not include fluids
or solids
Voltage - correct answer Electrical pressure
Current flow - correct answer Must have a power source, path, and a load
Ohms Law - correct answer E=I/R
Inductive electricity - correct answer Anything that moves, motors, solenoid
Heat Anticipators - correct answer Are wired in series
Cooling anticipators - correct answer Are wired parallel
Low pressure switches detects - correct answer a loss of refrigerant
Low pressure switches de energizes - correct answer the compressor
Electronic air cleaners do not - correct answer remove odors
Electronic air cleaners normally are - correct answer 4000 to 8000 dc volts
Air handlers above a ceiling have to have - correct answer a secondary pan
Latent heat - correct answer changes the state of a substance but not the
temp
Always size a heat pump - correct answer By the cooling capacity
Sensible heat - correct answer You can always read on a thermometer
Demand Defrost is... - correct answer looking for the coil temp and the
ambient temp to increase to initiate a defrost
Package units... - correct answer the pad must be isolated from the structure
to reduce vibration and noise
Balance point - correct answer is where the heat loss and heat gain are the
same
, if water is not drained away from the outdoor unit - correct answer ice will
form on the coil and reduce capacity
Radiation - correct answer Method of heat transfer that does not include fluids
or solids
Voltage - correct answer Electrical pressure
Current flow - correct answer Must have a power source, path, and a load
Ohms Law - correct answer E=I/R
Inductive electricity - correct answer Anything that moves, motors, solenoid
