How Much Do You Really Know About HVAC?

By: Heather Cahill
Estimated Completion Time
3 min
How Much Do You Really Know About HVAC?
Image: By National Institute of Standards and Technology, via Wikimedia Commons

About This Quiz

Nobody likes to be uncomfortable. That's why HVAC was invented! It's the reason we don't have to go jump in a pool or cover up with 18 blankets to keep a reasonable temperature. Although you use it every day, do you really know how the systems work? Get ready to test your knowledge on the world of HVAC!

Do you know what radiation, convection and conduction are? Do you know which part of your system should be replaced or cleaned out regularly? Do you know what the purpose of HVAC is? Don't sweat it, your HVAC knowledge will help you through this quiz!

Do you know what a packaged system or a humidifier is? Do you know what acronyms like "PSI" or "BTU" stand for? Do you know what the name of the code that all HVAC professionals must follow is? If these don't make you sweat, then can you tell us what might hinder an air conditioner's effectiveness? Try to keep your cool while answering these questions!

Maybe you've tried your hand at fixing an air conditioner, or maybe you just know a lot about the trade. No matter where your knowledge comes from, it will be put to the test here. Take the quiz to see how much you know about HVAC!

What does "PSI" stand for?
package system integration
personal system initiator
pipe seclusion intersect
pound per square inch
Correct Answer
Wrong Answer

"PSI" stands for pounds per square inch. This is used in relation to both force and pressure in relation to the air in a certain space.

What does an air handler connect to?
water chambers
walls
ducts
the outdoors
Correct Answer
Wrong Answer

Air handlers connect to ducts which carry the air from the handler to where it needs to be. It will also bring any air back to the handler. It does a lot of quality control on the air as well with the amount it lets out and takes in.

What is hydronics?
heat/cooling through water
another name for a fan
the temperature of pool water
another word for HVAC
Correct Answer
Wrong Answer

Hydronics in short is water-powered heating and cooling. In this process, cold water stays cold in a chiller and warm water is kept in a boiler. It can sometimes be done through steam as well.

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Is it true or false that air conditioning is important for the elderly?
True
False
Correct Answer
Wrong Answer

This is true. Hot days can be very dangerous for the elderly, so they need some relief from the heat at times. Air conditioning is important in keeping them cool and hydrated.

What is natural ventilation?
extreme wind
air from the outside
an indoor fan
air warmed by the sun
Correct Answer
Wrong Answer

Natural ventilation is using the outside resources in order to ventilate a room. This includes letting fresh air from the outdoors come inside.

What does the "H” in HVAC stand for?
heating
high
hope
hi-tech
Correct Answer
Wrong Answer

The "H" in HVAC stands for heating. The full acronym stands for "Heating, Ventilation and Air Conditioning," which is also a description of all of the things that HVAC professionals can work on.

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What is one common way to heat your home?
the outside heat
light bulbs
an oven
central heating
Correct Answer
Wrong Answer

Central heating is often a popular option for heating homes. It can work by heating up air and circulating it through the area, or even through the use of heating up water!

What does "BTU" stand for?
British Thermal Unit
Backend Trajectory Unit
Big Temperature Unit
Best Temperature Unit
Correct Answer
Wrong Answer

"BTU" stands for British Thermal Unit. This is the unit that is used to measure the heat. Did you know that heat and energy units go hand in hand?

What has to be right in order for the air system to be effective?
the size of it
the model
the look
Any HVAC system is fine.
Correct Answer
Wrong Answer

The size of an HVAC system can really affect its power on the area. If it's too small, it may not heat or cool down the area as one that is fit for that size of room might.

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Is it true or false that a portable air conditioner must be installed by an HVAC professional?
True
False
Correct Answer
Wrong Answer

This is false. Portable air conditioners can be bought and installed by any adult. They can often use the outside air to cool down smaller areas or rooms.

What is the purpose of a dehumidifier?
to make the air cleaner
to keep the temperature down
to direct the air
to evaporate vapor
Correct Answer
Wrong Answer

A dehumidifier is used to evaporate the humidity out of the air. This is another way to make sure that the air in your home is of a better quality as well.

Who designed the first HVAC system?
Albert Einstein
Marie Curie
Willis Carrier
Thomas Edison
Correct Answer
Wrong Answer

Willis Carrier was the pioneer of HVAC when he invented the first system in 1902. His invention proved to be beneficial in the hot areas of the United States, allowing them to be more comfortable places to live.

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Is it true or false that good ventilation can minimize the spread of disease?
True
False
Correct Answer
Wrong Answer

This is true. Good ventilation can do a lot for your health. Just like it can minimize dust, it can also prevent the spread of disease.

What in your HVAC system needs to be changed regularly?
fuses
the entire system
wiring
air filter
Correct Answer
Wrong Answer

The air filter is an important thing to replace on a regular basis in your HVAC system. This will allow it to keep doing its job, which is catching all the bad stuff that comes through the air.

How can ceiling fans keep a room warm in the winter?
by circulating the hot air
by sucking in cold air
by being turned off
They don't keep anywhere warm.
Correct Answer
Wrong Answer

Ceiling fans can can keep a room warm in the winter due to the fact that the hot air rises. When its turned on, it circulates it throughout the room.

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What is a packaged system powered by?
oil
electricity
gas
coal
Correct Answer
Wrong Answer

Packaged systems are powered by electricity. These systems can create heat as well as cold air, or they can come as individual systems for each purpose.

Is it true or false that getting regular checkups on your system can keep it running its best?
True
False
Correct Answer
Wrong Answer

This is true. Just as we should get regular doctor check ups, our air systems need check ups too. Maybe not as frequently, but its still important!

What term is used for sections of a building that control the air in the small areas?
confinement
blocking
zoning
restriction
Correct Answer
Wrong Answer

Zoning includes sections of a building that are used for air control purposes. For example, you could control the air in the living room, and in the kitchen, allowing you to vary the temperatures.

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What is the purpose of HVAC systems?
to deliver air outdoors
to match the temperature outside
to provide suitable temperatures and air quality
to make a room more pleasant
Correct Answer
Wrong Answer

HVAC systems are used to make air quality better through ventilation, as well as keep the building at a suitable temperature. HVAC systems can improve the overall comfort of a building through temperature.

What is a geothermal heat pump?
a water pump
a natural gas system
a wood powered system
a ground-based heater
Correct Answer
Wrong Answer

A geothermal heat pump is a ground-based heater that quite literally takes the heat from the ground to create warm air. This can be a lower cost option for keeping your home cozy in the winter and cooler in the summer!

Radiation, convection and conduction are all ways to do what?
filter the air
reduce carbon dioxide
cook soup
transfer air
Correct Answer
Wrong Answer

These are all processes of heat or cooling transfers. Their purpose is to circulate the warm or cold air all around the space in order to make it effective.

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What controls a humidifier?
a damper
a radiant heater
a thermostat
a humidistat
Correct Answer
Wrong Answer

A humidistat is similar to a thermostat, although it controls the humidity of a room. This is done through the humidifier, which can help out the full HVAC system in the long run.

Which of the following might radiant heating heat up?
floors
hot tubs
pools
chairs
Correct Answer
Wrong Answer

Radiant heating is used to heat up floors through the use of radiation. The heating method can change however, using the process of hydronics, or they can be electric powered.

Is it true or false that the first air conditioned home was designed in 1913?
True
False
Correct Answer
Wrong Answer

This is true. The first air conditioned home must have been thought of as a luxury in 1913! It was installed in the United States in the state of Minnesota.

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Ventilating minimizes what?
nothing
temperature
air flow
dust and bacteria
Correct Answer
Wrong Answer

Ventilating is in use to minimize the amount of dust and bacteria that is transferred through the air. It is an important part of an HVAC system and does a great deal to keep people in the building healthier.

What is it called when heat is being added to a certain area?
air flow
hot air
heater
heat gain
Correct Answer
Wrong Answer

The term for this is "heat gain". Heat gain can happen due to a variety of different reasons such as your own heater, or even through the heat of the sun as it shines on the building.

Is it true or false that radiant heat is very effective at heating up a room?
True
False
Correct Answer
Wrong Answer

This is true. It may not seem like it since the system directly heats up the floor, but don't forget that heat rises! The heat from the floor can quickly heat up the entire room as it rises up.

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Is it true or false that HVAC systems take up some of the most energy in most buildings?
True
False
Correct Answer
Wrong Answer

This is true. Often, you may forget about them as they keep us comfortable, but HVAC systems are always doing their job. Their job also takes a lot of energy, which in turn can be a little costly.

Is it true or false that running a fireplace can reduce the work of the heater?
True
False
Correct Answer
Wrong Answer

This is true. Running a fireplace will help heat up a room or area quickly, and it means less work for your heater to handle. Why not throw a log in the fire every now and then? Be sure to control the airflow from other areas of the house, though, to increase efficiency.

What does a zone damper do?
It controls air quality.
It makes the room cooler.
It blocks air.
It allows air from the outside to come in.
Correct Answer
Wrong Answer

A zone damper controls the air in a room by blocking it. The damper can easily put a stop to unwanted air in a certain area to control the climate of the room.

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In America, what code must HVAC professionals follow?
Uniform Mechanical Code
ASCII
The Atbash Code
The da Vinci Code
Correct Answer
Wrong Answer

The Uniform Mechanical Code is an important one for all HVAC professionals. The code gives professionals the knowledge they need to safely and properly install systems in all kinds of different buildings.

Which of the following is not an efficient way to heat your home?
electricity
direct sunlight
gas
oil
Correct Answer
Wrong Answer

Direct sunlight can't help you when it comes to night time! Electricity, gas and oil are all more efficient ways of heating up your space. They all have pros and cons, however, so it's important to look into them.

What type of substance is a refrigerant?
gas
liquid
solid
nothing
Correct Answer
Wrong Answer

Refrigerant is a type of liquid which is used in HVAC systems. It has the ability to both cool and heat up in order to give off the proper temperature.

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What does "DH" stand for?
department HVAC
determined heat
drama heating
district heating
Correct Answer
Wrong Answer

"DH" stands for district heating. This means that the heat is confined to one location where it serves its purpose.This type of heating is permitted to be used in both residential and commercial spaces.

Air conditioning used to be measured in what?
amps
Kelvins
knots
ice power
Correct Answer
Wrong Answer

Before switching over, ice power was the way you measured air conditioning. As crazy as it sounds, ice power was determined by the ice needed to create the temperature that the room was at.

You Got:
/35
By National Institute of Standards and Technology, via Wikimedia Commons