HVAC Questions Questions Correctly Answered
and Updated!!!
A liquid material exerts a pressure or Force. - ANSWER Outward and downward
If the temperature remains constant and the volume that a gas occupies increases the
pressure will. - ANSWER Decrease
The volume of gas varies inversely with the absolute pressure, provided the
temperature remains constant. This is called. - ANSWER Boyle's law
At a constant pressure the volume of a gas varies as to the absolute temperature and at
a constant volume the pressure of the gas varies directly with the absolute temperature
this is known as. - ANSWER Charles law
The total pressure of a confined mixture of gases is the sum of the pressure of each of
the gases in the mixture this is known as. - ANSWER Daltons law
A helicopter is lifting an 800 pound unit at a rate of 200 feet per minute how many
horsepower of work energy is the helicopter used in this process. - ANSWER 4.848 hp
Ice melts in ice boxes because? - ANSWER Hear falls to the insulated walls
Heat enters when the doors open
Heat enters when warm food is placed in the icebox
High temperature Refrigeration is that produced by? - ANSWER An air-conditioning
system
, Refrigeration can be described as? - ANSWER The process of removing heat from a place
where it is not wanted to a place where it makes little or no difference
The temperature inside Refrigeration fresh-food section should be about? - ANSWER C.
35 degrees Fahrenheit
A ton of refrigeration is equal to? - ANSWER 288,000 BTU / 24 hours
The ________ relationship correlates the vapor pressure and the boiling point of water
and is the basis for controls the cooling systems temperatures. - ANSWER Temperature /
pressure
The ______ are used to change the vapor to a liquid and the liquid form back into a
vapor the refrigeration cycle. - ANSWER Condenser and evaporator
The evaporator in a refrigeration system ______. - ANSWER Absorbs heat from the
product to be cool
Reciprocating compressors have enclosure ______. - ANSWER A piston and cylinder
When a refrigerant entering the compressor, it is a ______ and when it leaves the
compressor it is a ______. - ANSWER Low pressure low temperature superheated
Vapor, high-pressure high-temperature superheated vapor
Good ventilation is important when working under Refrigeration equipment because
modern refrigerants ______ . - ANSWER Are heavier than air and may displace the
oxygen around you
and Updated!!!
A liquid material exerts a pressure or Force. - ANSWER Outward and downward
If the temperature remains constant and the volume that a gas occupies increases the
pressure will. - ANSWER Decrease
The volume of gas varies inversely with the absolute pressure, provided the
temperature remains constant. This is called. - ANSWER Boyle's law
At a constant pressure the volume of a gas varies as to the absolute temperature and at
a constant volume the pressure of the gas varies directly with the absolute temperature
this is known as. - ANSWER Charles law
The total pressure of a confined mixture of gases is the sum of the pressure of each of
the gases in the mixture this is known as. - ANSWER Daltons law
A helicopter is lifting an 800 pound unit at a rate of 200 feet per minute how many
horsepower of work energy is the helicopter used in this process. - ANSWER 4.848 hp
Ice melts in ice boxes because? - ANSWER Hear falls to the insulated walls
Heat enters when the doors open
Heat enters when warm food is placed in the icebox
High temperature Refrigeration is that produced by? - ANSWER An air-conditioning
system
, Refrigeration can be described as? - ANSWER The process of removing heat from a place
where it is not wanted to a place where it makes little or no difference
The temperature inside Refrigeration fresh-food section should be about? - ANSWER C.
35 degrees Fahrenheit
A ton of refrigeration is equal to? - ANSWER 288,000 BTU / 24 hours
The ________ relationship correlates the vapor pressure and the boiling point of water
and is the basis for controls the cooling systems temperatures. - ANSWER Temperature /
pressure
The ______ are used to change the vapor to a liquid and the liquid form back into a
vapor the refrigeration cycle. - ANSWER Condenser and evaporator
The evaporator in a refrigeration system ______. - ANSWER Absorbs heat from the
product to be cool
Reciprocating compressors have enclosure ______. - ANSWER A piston and cylinder
When a refrigerant entering the compressor, it is a ______ and when it leaves the
compressor it is a ______. - ANSWER Low pressure low temperature superheated
Vapor, high-pressure high-temperature superheated vapor
Good ventilation is important when working under Refrigeration equipment because
modern refrigerants ______ . - ANSWER Are heavier than air and may displace the
oxygen around you
