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