Nocti Hvac Final Exam 2025/2026 Questions
with Correct Detailed Answers || Already
Graded A+ <Latest Version>
What is the maximum amount of refrigerant that a recovery cylinder should
contain? - answer-80% water capacity by weight
During push-pull liquid recovery, vapor refrigerant is pulled from the __ -
answer-recovery cylinder
If the entire refrigerant charge has leaked out of a system, then a __ should be
used to pressurize the system to test for leaks - answer-inert gas
A defrost timer that turns son defrost operations at a preset time and stops
defrosting operations when the evaporator reaches a preset cut-out
temperature is a ________ defrost timer. - answer-time-initiated,
temperature-terminated
A defrost timer that turns on defrost operations at a preset time and turns it
off when a preset pressure is reached is a ______ defrost timer. - answer-time-
initiated, pressure-terminated
,A condensate pump is used to __________. - answer-remove the moisture that
builds up from defrosting and condensation
In a nonfreezing solution defrost system, ________. - answer-All of the above
Which of the following statements regarding water defrost systems is false? -
answer-Water delivery may be done during a cooling cycle with the
compressor running.
An electric heat defrost system __________. - answer-energizes electric
heating coils
In what type of defrost system is air from the conditioned space circulated
over the evaporator when the compressor is not running? - answer-Off-cycle
defrost system
Which of the following statements regarding off-cycle defrost systems is false?
- answer-It can only be used in very-low-temperature systems
A hot-water reclaim tank is a cylinder filled with water that absorbs heat from
refrigerant flowing through a refrigerant system's ___________. - answer-
discharge line
, A tank connected between the outlet of a condenser and a liquid line that is
used for refrigerant storage is a(n) ____________. - answer-liquid reciever
A suction line-liquid line heat exchanger ____________. - answer-superheats
vapor refrigerant in the suction line
The superheating done by a suction line-liquid line heat exchanger helps
prevent __________. - answer-liquid slugging in the compressor
The conditions that are normally maintained in an indoor space are known as
the indoor __________. - answer-climate
The science of studying the thermodynamic properties of air and water vapor
is called ____________. - answer-psychrometry
The long-term weather trends for a region are known as the __________. -
answer-climate
The ______________ is the layer of the atmosphere that is closest to the
earth. - answer-troposphere
The _________ is the layer of the atmosphere that contains the ozone layer. -
answer-stratosphere
The ______ is the outermost layer of the earth's atmosphere. - answer-
exosphere
with Correct Detailed Answers || Already
Graded A+ <Latest Version>
What is the maximum amount of refrigerant that a recovery cylinder should
contain? - answer-80% water capacity by weight
During push-pull liquid recovery, vapor refrigerant is pulled from the __ -
answer-recovery cylinder
If the entire refrigerant charge has leaked out of a system, then a __ should be
used to pressurize the system to test for leaks - answer-inert gas
A defrost timer that turns son defrost operations at a preset time and stops
defrosting operations when the evaporator reaches a preset cut-out
temperature is a ________ defrost timer. - answer-time-initiated,
temperature-terminated
A defrost timer that turns on defrost operations at a preset time and turns it
off when a preset pressure is reached is a ______ defrost timer. - answer-time-
initiated, pressure-terminated
,A condensate pump is used to __________. - answer-remove the moisture that
builds up from defrosting and condensation
In a nonfreezing solution defrost system, ________. - answer-All of the above
Which of the following statements regarding water defrost systems is false? -
answer-Water delivery may be done during a cooling cycle with the
compressor running.
An electric heat defrost system __________. - answer-energizes electric
heating coils
In what type of defrost system is air from the conditioned space circulated
over the evaporator when the compressor is not running? - answer-Off-cycle
defrost system
Which of the following statements regarding off-cycle defrost systems is false?
- answer-It can only be used in very-low-temperature systems
A hot-water reclaim tank is a cylinder filled with water that absorbs heat from
refrigerant flowing through a refrigerant system's ___________. - answer-
discharge line
, A tank connected between the outlet of a condenser and a liquid line that is
used for refrigerant storage is a(n) ____________. - answer-liquid reciever
A suction line-liquid line heat exchanger ____________. - answer-superheats
vapor refrigerant in the suction line
The superheating done by a suction line-liquid line heat exchanger helps
prevent __________. - answer-liquid slugging in the compressor
The conditions that are normally maintained in an indoor space are known as
the indoor __________. - answer-climate
The science of studying the thermodynamic properties of air and water vapor
is called ____________. - answer-psychrometry
The long-term weather trends for a region are known as the __________. -
answer-climate
The ______________ is the layer of the atmosphere that is closest to the
earth. - answer-troposphere
The _________ is the layer of the atmosphere that contains the ozone layer. -
answer-stratosphere
The ______ is the outermost layer of the earth's atmosphere. - answer-
exosphere
