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WorksheetsHVAC Mod 1- Intro to HVAC
Total questions: 19
Worksheet time: 19mins
In a typical system, in which component would the refrigerant change from a liquid to a vapor?
Which component raises the pressure of the vapor?
Compressor
Condenser
Evaporator
Thermal Xpansion Valve
Where does the low pressure liquid become a low pressure vapor?
Evaporator
Condenser
TX valve
Compressor
In what state is the refrigerant when it exits the condenser?
High pressure gas
Low pressure gas
High pressure liquid
Low pressure liquid
The main components of the Refrigeration system are
Thermistor, condenser, flow control and an evaporator.
Fan blower, condenser, flow control and an evaporator.
Compressor, condenser, metering device, evaporator.
Drainage, condenser, flow control and an evaporator.
Where would you expect to find a high pressure liquid within an AC system?
Between the Compressor and the Metering Device
Between the Metering Device and the Evaporator
Between the compressor and the condenser
Between the Condenser and the Metering Device.
Heat will always travel:
in a straight line
from top to bottom
from hot to cold
from cold to hot
The proper name of the Valve Core:
Poppet Valve
Piston Valve
Schrader Valve
Stem Fitting
Compressor not engaging. Gauges showing pressure at 160 psi on both High and Low side. Fuses check out as good. What should be done next?
Check Power and ground at Compressor
Recover
Charge .5 pound
Charge 1.5 pounds
Vaccum and Leak Test
Systems that use water or steam as a source of heating are known as____
Natural Gas
Coal
Hydronic
Split
_______ is when fresh air is introduced into a space in order to control air quality.
Air Conditioning
Ventilation
Refrigeration
Fan
______ is used to control bacteria, fungi, and other microorganisms in the A/C unit/
Humidity
Soap
Chlorine
Ultraviolet Light
What type of gases does a furnace produce?
Carbon Monoxide
Carbon Dioxide
Tetrafluorormethane
Sulfur Hexafluoride
Company that specializes in the installation, construction, maintenance, and repair of HVAC equipment.
Electrical Contractor
Mechanical Contractor
General Contractor
EPA Contractor
Refrigerants containing ______ can damage the ozone layer.
Ammonia
Oxygen
Nitrogen
Chlorine
_______ refrigerants can be resold.
Recycled
Reclaimed
Recovered
Removed
Local Building Codes are based on ______
Code of Federal Regulations
State Building Code
International Building Code
International HVAC Code
Large Hydronic Cooling Units are referred to as ?
Chillers
Ground Source
Mechanical
Boilers
How many on-the-job Learning hours annually are required during an apprenticeship.
8000
4000
2000
1000
