NATE CORE EXAM|VERIFIED QUESTIONS AND CORRECT DETAILED
ANSWERS|RATED AND GRADED A+ NEW UPDATE| 2026/2027
What method of heat transfer does NOT require fluids or solids?
a. Conduction
b. Convection
c. Radiation
d. Evaporation - ANSWER✔ c. Radiation
Capillary tubing should only be cut to length using a:
a. Triangular or knife-edge file
b. Pair of diagonal cutters
c. Hacksaw
d. Nibbling tool - ANSWER✔ d. Nibbling tool
Before beginning any electrical checkout procedure, what step must always be taken after the
equipment disconnect or circuit breaker has been turned off?
a. Make sure you are always properly grounded
b. Check for the presence of voltage
c. Ohm from the equipment cabinet to ground to see if there is continuity
d. Reset all manual safety controls - ANSWER✔ b. Check for the presence of voltage
When making a flare, the height of the tubing above the flaring block is critical because a flare with too
much starting height will:
a. Loosen over time
ANSWERS|RATED AND GRADED A+ NEW UPDATE| 2026/2027
What method of heat transfer does NOT require fluids or solids?
a. Conduction
b. Convection
c. Radiation
d. Evaporation - ANSWER✔ c. Radiation
Capillary tubing should only be cut to length using a:
a. Triangular or knife-edge file
b. Pair of diagonal cutters
c. Hacksaw
d. Nibbling tool - ANSWER✔ d. Nibbling tool
Before beginning any electrical checkout procedure, what step must always be taken after the
equipment disconnect or circuit breaker has been turned off?
a. Make sure you are always properly grounded
b. Check for the presence of voltage
c. Ohm from the equipment cabinet to ground to see if there is continuity
d. Reset all manual safety controls - ANSWER✔ b. Check for the presence of voltage
When making a flare, the height of the tubing above the flaring block is critical because a flare with too
much starting height will:
a. Loosen over time
