Nocti Hvac Exam Questions And Correct
Answers| Get It Correct !!!
An Hvac system that depends on the temperatures
below the ground surface as an operation factor is a .. -
Correct Answers-
Geothermal heat pump
when putting out a fire involving oily rags use a
________ fire extinguisher? -
Correct Answers-
Class B
The best tool to open and close the stem access valve on
a refrigeriation system is the_______ -
Correct Answers-
Refrigeration service wrench
Which power tool is best to cut steel rod? -
Correct Answers-
Sawzall
CSST (steal tubing) connections -
Correct Answers-
can be used with both natural and propane gas
equipment
The type of pipe commonly used for condensation
drainage on central air conditioning system is -
Correct Answers-
PVC
1
,When pressure testing completed copper tubing
assembly with pressuried nitrogen the nitrogen cylinder
should -
Correct Answers-
always be on the ground
connections should be permanently connected
with_____ on drainage piping assemblies that uses PVC
piping -
Correct Answers-
Glue specified for PVC pipe
Using oxygen to purge copper tubing after brasing -
Correct Answers-
could cause and explosion
Two gases that considered non-condensable in a
refrigeration -
Correct Answers-
Air and Nitrogen
Residential air condition system have a super heat range
of ____ degress under normal operating conditions? -
Correct Answers-
8 to 12
which is not a condition of low superheat on an air
conditioning system -
Correct Answers-
Refrigerant undercharged
2
, The reason that subcooling would be below 8 degrees
on air conditiong system -
Correct Answers-
dirty or blocked condenser coil
The cause for exessive subcoolinf in an air conditoning
system ? -
Correct Answers-
system operating in low abient conditions
when reading blue prints for proper wall and duct
location, the technician should look at the ______ -
Correct Answers-
Floor plan
When trouble shooting an air conditioning system, the
operating pressures mare 40 psig on the low side and
116 in the high side, what would be the most likely
problem? -
Correct Answers-
Refrigerant Leak
When trouble shooting an air conditioning system and
you notice frost on the suction line, what would be the
problem? -
Correct Answers-
Dirty air filter
3
Answers| Get It Correct !!!
An Hvac system that depends on the temperatures
below the ground surface as an operation factor is a .. -
Correct Answers-
Geothermal heat pump
when putting out a fire involving oily rags use a
________ fire extinguisher? -
Correct Answers-
Class B
The best tool to open and close the stem access valve on
a refrigeriation system is the_______ -
Correct Answers-
Refrigeration service wrench
Which power tool is best to cut steel rod? -
Correct Answers-
Sawzall
CSST (steal tubing) connections -
Correct Answers-
can be used with both natural and propane gas
equipment
The type of pipe commonly used for condensation
drainage on central air conditioning system is -
Correct Answers-
PVC
1
,When pressure testing completed copper tubing
assembly with pressuried nitrogen the nitrogen cylinder
should -
Correct Answers-
always be on the ground
connections should be permanently connected
with_____ on drainage piping assemblies that uses PVC
piping -
Correct Answers-
Glue specified for PVC pipe
Using oxygen to purge copper tubing after brasing -
Correct Answers-
could cause and explosion
Two gases that considered non-condensable in a
refrigeration -
Correct Answers-
Air and Nitrogen
Residential air condition system have a super heat range
of ____ degress under normal operating conditions? -
Correct Answers-
8 to 12
which is not a condition of low superheat on an air
conditioning system -
Correct Answers-
Refrigerant undercharged
2
, The reason that subcooling would be below 8 degrees
on air conditiong system -
Correct Answers-
dirty or blocked condenser coil
The cause for exessive subcoolinf in an air conditoning
system ? -
Correct Answers-
system operating in low abient conditions
when reading blue prints for proper wall and duct
location, the technician should look at the ______ -
Correct Answers-
Floor plan
When trouble shooting an air conditioning system, the
operating pressures mare 40 psig on the low side and
116 in the high side, what would be the most likely
problem? -
Correct Answers-
Refrigerant Leak
When trouble shooting an air conditioning system and
you notice frost on the suction line, what would be the
problem? -
Correct Answers-
Dirty air filter
3
