Nocti Hvac study guide questions and
answers rated A+
An Hvac system that depends on the temperatures below the ground surface as an operation
factor is a .. - correct answer ✔✔ Geothermal heat pump
when putting out a fire involving oily rags use a ________ fire extinguisher? - correct answer
✔✔ Class B
The best tool to open and close the stem access valve on a refrigeration system is the_______ -
correct answer ✔✔ Refrigeration service wrench
Which power tool is best to cut steel rod? - correct answer ✔✔ Sawzall
CSST (steal tubing) connections - correct answer ✔✔ 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 answer ✔✔ PVC
When pressure testing completed copper tubing assembly with pressuried nitrogen the
nitrogen cylinder should - correct answer ✔✔ always be on the ground
connections should be permanently connected with_____ on drainage piping assemblies that
uses PVC piping - correct answer ✔✔ Glue specified for PVC pipe
, Using oxygen to purge copper tubing after brasing - correct answer ✔✔ could cause and
explosion
Two gases that considered non-condensable in a refrigeration - correct answer ✔✔ Air and
Nitrogen
Residential air condition system have a super heat range of ____ degress under normal
operating conditions? - correct answer ✔✔ 8 to 12
which is not a condition of low superheat on an air conditioning system - correct answer ✔✔
Refrigerant undercharged
The reason that subcooling would be below 8 degrees on air conditiong system - correct answer
✔✔ dirty or blocked condenser coil
The cause for exessive subcoolinf in an air conditoning system ? - correct answer ✔✔ system
operating in low abient conditions
when reading blue prints for proper wall and duct location, the technician should look at the
______ - correct answer ✔✔ 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 answer ✔✔
Refrigerant Leak
When trouble shooting an air conditioning system and you notice frost on the suction line, what
would be the problem? - correct answer ✔✔ Dirty air filter
An Hvac system that depends on the temperatures below the ground surface as an operation
factor is a/an______? - correct answer ✔✔ geothermal heat pump
answers rated A+
An Hvac system that depends on the temperatures below the ground surface as an operation
factor is a .. - correct answer ✔✔ Geothermal heat pump
when putting out a fire involving oily rags use a ________ fire extinguisher? - correct answer
✔✔ Class B
The best tool to open and close the stem access valve on a refrigeration system is the_______ -
correct answer ✔✔ Refrigeration service wrench
Which power tool is best to cut steel rod? - correct answer ✔✔ Sawzall
CSST (steal tubing) connections - correct answer ✔✔ 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 answer ✔✔ PVC
When pressure testing completed copper tubing assembly with pressuried nitrogen the
nitrogen cylinder should - correct answer ✔✔ always be on the ground
connections should be permanently connected with_____ on drainage piping assemblies that
uses PVC piping - correct answer ✔✔ Glue specified for PVC pipe
, Using oxygen to purge copper tubing after brasing - correct answer ✔✔ could cause and
explosion
Two gases that considered non-condensable in a refrigeration - correct answer ✔✔ Air and
Nitrogen
Residential air condition system have a super heat range of ____ degress under normal
operating conditions? - correct answer ✔✔ 8 to 12
which is not a condition of low superheat on an air conditioning system - correct answer ✔✔
Refrigerant undercharged
The reason that subcooling would be below 8 degrees on air conditiong system - correct answer
✔✔ dirty or blocked condenser coil
The cause for exessive subcoolinf in an air conditoning system ? - correct answer ✔✔ system
operating in low abient conditions
when reading blue prints for proper wall and duct location, the technician should look at the
______ - correct answer ✔✔ 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 answer ✔✔
Refrigerant Leak
When trouble shooting an air conditioning system and you notice frost on the suction line, what
would be the problem? - correct answer ✔✔ Dirty air filter
An Hvac system that depends on the temperatures below the ground surface as an operation
factor is a/an______? - correct answer ✔✔ geothermal heat pump
