The basic purpose of an HVAC system is___________.
Correct!
Wrong!
At which temperature, the building in use would be able to support temperature comfort without the need for a heating or cooling system?
Correct!
Wrong!
Space heat may be added or removed by a system designed to make use of naturally occurring environmental forces. Such a system is termed as_________.
Correct!
Wrong!
The main refrigeration approaches employed in buildings:
Correct!
Wrong!
Location where on-site combustion is used as a means of producing heat is known as_________.
Correct!
Wrong!
A device consists of an arrangement of nozzles that permits the efficient combustion of liquid or gaseous fuels by providing good mixing between the fuel and the oxygen necessary for combustion, known as_______?
Correct!
Wrong!
A boiler is a heating system component designed to________?
Correct!
Wrong!
Portable heaters are designed to operate as________?
Correct!
Wrong!
The change from the liquid to vapor state known as?
Correct!
Wrong!
In an air conditioning and refrigeration system, what occurs in a condenser?
Correct!
Wrong!
In sealed system, pressure and temperature_______.
Correct!
Wrong!
Every mechanical refrigeration system has______ different pressure levels
Correct!
Wrong!
What is the major difference between a heat pump and an air conditioner?
Correct!
Wrong!
The safety ground conductor for A/C circuit is usually color coded_______?
Correct!
Wrong!
What is sling psychrometer used to measure?
Correct!
Wrong!