Temp, Air Filtration

Question 1

What is sensible heat?

Answer 1

Heat required to change the temp without changing the state

Question 2

What is the importance of controlling humidity?

Answer 2

To prevent any structural damage as well as to keep comfort

Question 3

Heat is a form of what?

Answer 3

Energy and causes random vibrations of molecules of a substance

Question 4

Cold is a term denoting the relative absence of what?

Answer 4

Heat

Question 5

Temp is the measure of:

Answer 5

The intensity of heat of a substance

Question 6

What is convection?

Answer 6

The transfer of heat by a natural motion of a fluid medium

Question 7

What is conduction?

Answer 7

Transfer of heat through a substance

Question 8

What is radiation?

Answer 8

Transfer of heat by energy waves/rays

Question 9

What is latent heat ?

Answer 9

The amount of heat required to change the state but not the temp of a substance

Question 10

Specific heat is:

Answer 10

The # of BTU’S required to raise the temp of 1pound of a substance by 1degree (F)

Question 11

Humidity is:

Answer 11

The quantity of water in a particular volume of air

Question 12

Relative humidity is a measure of what?

Answer 12

The amount of water air can hold to a certain temp

Question 13

What measures Humidity?

Answer 13

A Hygrometer

Question 14

Your body cools itself by _____

Answer 14

Perspiring

Question 15

Effective temp is what?

Answer 15

The temp of saturated air

Question 16

Pleated media filters are constructed from specially blended self-charging ______

Answer 16

Materials

Question 17

Electronic air cleaners use a high DC voltage which travels through ______ wires

Answer 17

Ionizing

Question 18

What’s does HEPA stand for?

Answer 18

High Efficiency Particulate Arrestance

Question 19

Air temp is affected by what?

Answer 19

Movement

Question 20

What will happen to air if it’s allowed to remain still?

Answer 20

It will start to stratify

Question 21

The introduction of air circulation into the space station will help reduce or eliminate what?

Answer 21

Stratification

Question 22

Too much air flow can cause what?

Answer 22

The wind chill effect

Question 23

Noise levels are measured in:

Answer 23

DB- Decibels

Question 24

There is no known risk of hearing loss with sound levels below:

Answer 24

70 Db

Question 25

Noise levels will increase by how much when air speed is doubled?

Answer 25

18 DB

Question 26

Crosstalk is what?

Answer 26

When sound from other rooms travel to each-other through the ductwork

Question 27

Three major indoor air pollutants:

Answer 27

Particulates, bioaerosols, and volatile organic compounds

Question 28

Airborne particulates can rage from ____ to ____ microns in size.

Answer 28

0.1-100

Question 29

Bioaerosols are what?

Answer 29

Particles of organic matter

Question 30

VOC’s are often created from the release of gases from what?

Answer 30

Man made products

Question 31

Electrostatic filters will remove particles to the _____ microns range.

Answer 31

10th

Question 32

Pleated media filters are made up of a tighter woven fabric such as:

Answer 32

A cotton polyester blend

Question 33

Effective temperature is the temp of what?

Answer 33

Saturated air

Question 34

Pan style hum uses a _____ to bring water directly to the reservoir

Answer 34

A pipe

Question 35

A drum style hum uses a _____ to rotate a foam pad

Answer 35

A motor

Question 36

A well designed resi make up air system should provide the needed amount of air _____

Answer 36

Exchange

Question 37

1 BTU =

Answer 37

Amount of heat required to raise the temp of 55cubic feet of air 1degreeF. Or 1 Pound of water 1degreeF