NATE CORE ESSENTIALS UPDATED EXAMS SCRIPT
QUESTIONS AND ANSWERS SURE A+
✔✔a (soft drawn copper) - ✔✔Spring-type benders may be used on ____.
a. soft drawn copper
b. hard drawn copper
c. all copper pipe
d. steel pipe
✔✔a (make a mechanical joint in tubing) - ✔✔A flaring tool is used to ____.
a. make a mechanical joint in tubing
b. measure pipe diameters
c. remove burrs from piping
d. solder tubing without the use of coupling
✔✔d (solder tubing without the use of couplings) - ✔✔A swaging tool is used to ____.
a. cut copper tubing
b. make a mechanical joint in tubing
c. remove burrs from piping
d. solder tubing without the use of couplings
,✔✔a (It is very accurate) - ✔✔What is one of the advantages of a glass-stem
thermometer?
a. It is very accurate
b. It is very durable
c. It comes with a digital readout
d. Non of the above
✔✔b (dry-bulb) - ✔✔In discussing human comfort, the temperature most commonly
referred to is ____.
a. dew point
b. dry-bulb
c. wet-bulb
d. Fahrenheit
✔✔d (wet-bulb) - ✔✔A sling psychrometer uses two glass-stem thermometers. One
measures dry-bulb, and the other measures ____.
a. dew point
b. enthalpy
c. relative humidity
d. wet-bulb
✔✔b (Bourdon tube) - ✔✔A standard refrigeration manifold uses what type of element
to measure pressure?
a. Bellows
b. Bourdon tube
c. Diaphragm
d. Spring
✔✔c (30 in. Hg to 350 psig) - ✔✔What is the pressure range of a standard compound
gauge on a refrigerant manifold?
a. 0 to 350 psig
b. 0 to 500 psig
c. 30 in. Hg to 350 psig
d. 30 in. Hg to 500 psig
✔✔d (Vacuum pump) - ✔✔What is the best tool for removing moisture and non-
condensibles from a system before adding refrigerant?
a. Manifold gauge
b. Micron analyzer
, c. Recovery machine
d. Vacuum pump
✔✔b (microns) - ✔✔A vacuum gauge reads pressure in ____.
a. inches of mercury
b. microns
c. psia
d. psig
✔✔c (Micronic) - ✔✔Which of the following is not a method of leak detection?
a. Soap bubbles
b. Electronic
c. Micronic
d. Ultrasonic
✔✔a (Recovery machine) - ✔✔To prevent the release of refrigerant to the atmosphere
while removing it from a system, what type of equipment must be used?
a. Recovery machine
b. Recycling machine
c. Reclaim machine
d. Vacuum pump
✔✔b (air velocity) - ✔✔An anemometer uses a small fan blade to measure ____.
a. air pressure
b. air velocity
c. air volume
d. static pressure
✔✔c (No flux is required) - ✔✔What is one of the advantages of using silver brazing
rods for copper-to-copper joints?
a. A lower melting temperature is required
b. A propane torch is normally used
c. No flux is required
d. No nitrogen purge is needed
✔✔d (all of the above) - ✔✔"Housekeeping" includes ____.
a. disposal of waste
b. fire prevention and protection
c. proper storage of materials
d. all of the above
QUESTIONS AND ANSWERS SURE A+
✔✔a (soft drawn copper) - ✔✔Spring-type benders may be used on ____.
a. soft drawn copper
b. hard drawn copper
c. all copper pipe
d. steel pipe
✔✔a (make a mechanical joint in tubing) - ✔✔A flaring tool is used to ____.
a. make a mechanical joint in tubing
b. measure pipe diameters
c. remove burrs from piping
d. solder tubing without the use of coupling
✔✔d (solder tubing without the use of couplings) - ✔✔A swaging tool is used to ____.
a. cut copper tubing
b. make a mechanical joint in tubing
c. remove burrs from piping
d. solder tubing without the use of couplings
,✔✔a (It is very accurate) - ✔✔What is one of the advantages of a glass-stem
thermometer?
a. It is very accurate
b. It is very durable
c. It comes with a digital readout
d. Non of the above
✔✔b (dry-bulb) - ✔✔In discussing human comfort, the temperature most commonly
referred to is ____.
a. dew point
b. dry-bulb
c. wet-bulb
d. Fahrenheit
✔✔d (wet-bulb) - ✔✔A sling psychrometer uses two glass-stem thermometers. One
measures dry-bulb, and the other measures ____.
a. dew point
b. enthalpy
c. relative humidity
d. wet-bulb
✔✔b (Bourdon tube) - ✔✔A standard refrigeration manifold uses what type of element
to measure pressure?
a. Bellows
b. Bourdon tube
c. Diaphragm
d. Spring
✔✔c (30 in. Hg to 350 psig) - ✔✔What is the pressure range of a standard compound
gauge on a refrigerant manifold?
a. 0 to 350 psig
b. 0 to 500 psig
c. 30 in. Hg to 350 psig
d. 30 in. Hg to 500 psig
✔✔d (Vacuum pump) - ✔✔What is the best tool for removing moisture and non-
condensibles from a system before adding refrigerant?
a. Manifold gauge
b. Micron analyzer
, c. Recovery machine
d. Vacuum pump
✔✔b (microns) - ✔✔A vacuum gauge reads pressure in ____.
a. inches of mercury
b. microns
c. psia
d. psig
✔✔c (Micronic) - ✔✔Which of the following is not a method of leak detection?
a. Soap bubbles
b. Electronic
c. Micronic
d. Ultrasonic
✔✔a (Recovery machine) - ✔✔To prevent the release of refrigerant to the atmosphere
while removing it from a system, what type of equipment must be used?
a. Recovery machine
b. Recycling machine
c. Reclaim machine
d. Vacuum pump
✔✔b (air velocity) - ✔✔An anemometer uses a small fan blade to measure ____.
a. air pressure
b. air velocity
c. air volume
d. static pressure
✔✔c (No flux is required) - ✔✔What is one of the advantages of using silver brazing
rods for copper-to-copper joints?
a. A lower melting temperature is required
b. A propane torch is normally used
c. No flux is required
d. No nitrogen purge is needed
✔✔d (all of the above) - ✔✔"Housekeeping" includes ____.
a. disposal of waste
b. fire prevention and protection
c. proper storage of materials
d. all of the above
