Common Knowledge
Troubleshooting
Installation
Heating
Air Conditioning
100
Air filters should be changed..
What is monthly?
100
A homeowner calls and says that their tstat is blank, whats the first thing they should check?
What is to see if the batteries are dead?
100
Red wire
What is 24V?
100
The heating method that is most commonly used as a heat source in cold climates is ________.
What is Natural Gas?
100
CFM stands for...
What is cubic feet per minute?
200
HVAC stands for
What is Heating Ventilation and Air Conditioning?
200
A homeowner claims their Condenser Unit is frozen up during the summer, the first thing to tell them is to.....
What is turn the unit off and then fan onto the on position?
200
Ducts connect to.....
What is Air Handlers?
200
When fuel is burnt, it produces this harmful gas
What is Carbon Monoxide?
200
This tool is used to recover refrigerant from the system...
What is a Refrigerant Recovery Machine?
300
Most common refrigerants
What is 410A & R22?
300
Customer complains of low air flow, the first thing you should check is ____________
What is filters?
300
To prevent leakage, ducts should be sealed with....
What is mastic?
300
Electric Heaters are energized by...
What is Contactor or sequencer?
300
The Air Handler is the part that...
What is circulates air throughout the home?
400
The difference of the two sides of an air filter
What is oil on intake side?
400
If voltage is read across a fuse, this indicates...
What is a blown fuse?
400
When a house is zoned it means....
What is the home's HVAC system has multiple areas of the house controlled by different thermostats?
400
The heart of the Furnace is the...........
What is the Heat Exchanger?
400
The purpose of the Condenser is to.....
What is transfers heat from the refrigerant to outside the home?
500
He designed the first HVAC system
What is Willis Carrier?
500
A customer complains of a constant smell that they can not get rid of coming from the Evaporator Coil, it is most likely ____________.
What is dirty sock syndrome?
500
A tool that helps calculate the correct size of ducts based on factors such as airflow, velocity, and friction loss is called _________.
What is a ductulator?
500
When heat is added to a certain area, it is called ____.
What is heat gain?
500
In a split heat pump, you would find the accumulator in the.......
What is between the Compressor and the 4-way Valve?
600
BTU stands for...
What is British Thermal Units?
600
A abnormally low suction pressure in the heat pump mode of operation could indicate ________
What is poor air flow?
600
What is Trunk and Branch?
600
When a thermocouple is heated, ___________ can be measured.
What is millivolts?
600
In a refrigeration system, the low-pressure, low-temperature vapor is converted into a high-pressure, high temperature vapor by the _____.
What is the compressor?
700
Refrigerant is stored in..
What is Condenser Coil and Evaporator Coil?
700
You are working on an air to air split system heat pump. In the cooling mode, the compressor runs but the outdoor fan motor does not. Further checks reveal there is nothing wrong with the fan motor or capacitor. This is most likely the problem....
What is a faulty defrost control board?
700
To find out the heat loss from the windows in a bedroom, you have to.......
I couldn't remember all the deets while typing this, but you know..........
700
Heat is exchanged through these three processes......
What is Conduction, Convection, and Radiation?
700
The minimum operating pressure of a TXV is ....
What is 150Psig?