NATE EXAM|VERIFIED QUESTIONS AND CORRECT DETAILED
ANSWERS|RATED AND GRADED A+ NEW UPDATE| 2026/2027
Current in a closed circuit is limited by which of the following.
Resistance
Voltage
Temperature
Heat - ANSWER✔ Resistance
________ is the heat that is absorbed or extracted when a substance changes its state.
Latent heat
Specific heat
Enthalpy
Entropy - ANSWER✔ Latent Heat
Gas valves operate at ________ voltage.
24V
230V
120V
12V - ANSWER✔ 24V
When there is an increase in the heat load on the evaporator, the refrigerant will tend to evaporate at a
______ rate.
faster
slower - ANSWER✔ faster
, The ________ of the manifold gauge set is used to charge, evacuate, add oil, and recover refrigerant
from a refrigeration and air condition system.
Yellow Hose
Blue Hose
Red Hose - ANSWER✔ Yellow Hose
kWh of electric power is equivalent to _____ Btu per hour.
9412
6812
6412
3412 - ANSWER✔ 3412
A high pressure steam boiler operates at a pressure greater than ________.
20 psig
5 psig
25 psig
15 psig - ANSWER✔ 15 psig
An oil separator is located in the _____.
Liquid Line
Expansion Line
Suction Line
Discharge Line - ANSWER✔ Discharge Line
ANSWERS|RATED AND GRADED A+ NEW UPDATE| 2026/2027
Current in a closed circuit is limited by which of the following.
Resistance
Voltage
Temperature
Heat - ANSWER✔ Resistance
________ is the heat that is absorbed or extracted when a substance changes its state.
Latent heat
Specific heat
Enthalpy
Entropy - ANSWER✔ Latent Heat
Gas valves operate at ________ voltage.
24V
230V
120V
12V - ANSWER✔ 24V
When there is an increase in the heat load on the evaporator, the refrigerant will tend to evaporate at a
______ rate.
faster
slower - ANSWER✔ faster
, The ________ of the manifold gauge set is used to charge, evacuate, add oil, and recover refrigerant
from a refrigeration and air condition system.
Yellow Hose
Blue Hose
Red Hose - ANSWER✔ Yellow Hose
kWh of electric power is equivalent to _____ Btu per hour.
9412
6812
6412
3412 - ANSWER✔ 3412
A high pressure steam boiler operates at a pressure greater than ________.
20 psig
5 psig
25 psig
15 psig - ANSWER✔ 15 psig
An oil separator is located in the _____.
Liquid Line
Expansion Line
Suction Line
Discharge Line - ANSWER✔ Discharge Line
