NATE Final Exam 1 Latest 2026 Actual Questions
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Terms in this set (50)
Generally, vibration eliminators in D: Parallel to the compressor crankshaft
piping should be installed:
A: At a 45 degree angle
B: At a 90 degree angle
C: Perpendicular to the compressor
crankshaft
D: Parallel to the compressor
crankshaft
If you purchased ten filter-driers for B: $10.00
$100.00, what was the price of each
filter-drier?
A: $100.00
B: $10.00
C: $1.00
D: $1.10
,Which of the following jobs C: Brazing
requires safety glasses?
A: Driving a vehicle
B: Extending a ladder
C: Brazing
D: Pulling thermostat wire
Which of the following instruments A: Micron gauge
would typically be used to measure
a vacuum?
A: Micron gauge
B: Thermostat
C: Anemometer
D: Differential pressure gauge
, ASHRAE Standard 34 deals with: D: Refrigerant toxicity and flammability
A: Carbon monoxide safety levels ANSI/ASHRAE 34 published in 2001 and entitled
"Designation and Safety Classification of
B: Refrigerant quality Refrigerants".
• Class A signifies refrigerants for which toxicity
C: Equipment room ventilation and has not been identified at concentrations less
alarms than or equal to 400 ppm;
• Class B signifies refrigerants for which there is
D: Refrigerant toxicity and evidence of toxicity at concentrations below 400
flammability ppm.
• Class 1 indicates refrigerants that do not show
flame propagation when tested in air at 21°C and
101 kPa;
• Class 2 indicates refrigerants having a lower
flammability limit of more than 0.10 kg/m3 at 21°C
and 101 kPa and a heat of combustion of less than
19 kJ/kg;
• Class 3 indicates refrigerants that are highly
flammable as defined by a lower flammability
limit of less than or equal to 0.10 kg/m3 at 21°C
and 101 kPa or a heat of combustion greater than
or equal to 19 kJ/kg.
What control would you use on a C: Thermostatic temperature control
capillary tube or automatic
expansion valve system to maintain
the desired temperature?
A: Dual pressure control
B: High pressure control
C: Thermostatic temperature
control
D: Low pressure control
& Verified Answers (Latest Update)
A+ Grade 100% Guarantee Verified by Experts.
Save
Terms in this set (50)
Generally, vibration eliminators in D: Parallel to the compressor crankshaft
piping should be installed:
A: At a 45 degree angle
B: At a 90 degree angle
C: Perpendicular to the compressor
crankshaft
D: Parallel to the compressor
crankshaft
If you purchased ten filter-driers for B: $10.00
$100.00, what was the price of each
filter-drier?
A: $100.00
B: $10.00
C: $1.00
D: $1.10
,Which of the following jobs C: Brazing
requires safety glasses?
A: Driving a vehicle
B: Extending a ladder
C: Brazing
D: Pulling thermostat wire
Which of the following instruments A: Micron gauge
would typically be used to measure
a vacuum?
A: Micron gauge
B: Thermostat
C: Anemometer
D: Differential pressure gauge
, ASHRAE Standard 34 deals with: D: Refrigerant toxicity and flammability
A: Carbon monoxide safety levels ANSI/ASHRAE 34 published in 2001 and entitled
"Designation and Safety Classification of
B: Refrigerant quality Refrigerants".
• Class A signifies refrigerants for which toxicity
C: Equipment room ventilation and has not been identified at concentrations less
alarms than or equal to 400 ppm;
• Class B signifies refrigerants for which there is
D: Refrigerant toxicity and evidence of toxicity at concentrations below 400
flammability ppm.
• Class 1 indicates refrigerants that do not show
flame propagation when tested in air at 21°C and
101 kPa;
• Class 2 indicates refrigerants having a lower
flammability limit of more than 0.10 kg/m3 at 21°C
and 101 kPa and a heat of combustion of less than
19 kJ/kg;
• Class 3 indicates refrigerants that are highly
flammable as defined by a lower flammability
limit of less than or equal to 0.10 kg/m3 at 21°C
and 101 kPa or a heat of combustion greater than
or equal to 19 kJ/kg.
What control would you use on a C: Thermostatic temperature control
capillary tube or automatic
expansion valve system to maintain
the desired temperature?
A: Dual pressure control
B: High pressure control
C: Thermostatic temperature
control
D: Low pressure control
