Net surface area - Gross Wall Area - all doors & windows
Net volume - -Subtract all doors & windows from the gross surface area to get the net
surface area then:
-Multiply the net surface area by the wall thickness
Sheets of insulation needed to cover a wall that is 8'x28? - -Find the area of the wall
Wall = 8' x 28' = 224
-Find the area of the insulation board 8' x 4' = 32
-Divide the total war area by the total insulation board area
224/32=7
-If the wall and sheets are the same height you can divide the length of the wall by the
width of the sheet. 28/4=7
Volume - V=LWH
Area of a Triangle - A=1/2BxH
Perimeter of a Triangle - P=a+b+c
Pythagorean Theorem - A2+B2=C2 or C=sqRt of A2+B2
Volume of a Triangle - V=1/2*B*H*D
Diameter of a Circle - Diameter of a Circle = 2r
Radius of a Circle - R= 1/2 Diameter
Circumference of a circle - C=2pir
pi - pi=3.14
R2 - R2=r*r
, Zeroth Law - There is no heat flow between objects of the same temperature.
First Law - Heat cannot be created or destroyed. It can only move from one place to
another. Heat is work waiting to happen.
Second Law - Heat moves from hot to cold, looking to spread itself as evenly as
possible.
Third Law - If all the thermal energy of molecules could be removed, absolute zero
would occur.
Principles of Energy - Energy can be transformed but cannot be created or destroyed.
Energy naturally flows from high concentrations to low concentrations.
-Heat always flows from hot to cold
-Air moves from high pressure to low pressure
-Moisture moves from wet to dry
Sensible Heat - Heat we can feel. It is measurable with a thermometer
Latent Heat - Heat released or absorbed by a substance when it changes state, with no
release of temperature.
Temperature - A measure of the heat present in an object or a substance.
Delta T - Change in temperature; the difference in temperature between 2 objects.
Resources For Exam - R Value Chart + BPI Formula Reference sheet + calculator-NO
PHONE
Resources For Field Test - Will have field audit checklist-CAN put notes on this.
Practice Exams - Available on Everblue website
Material Safety Data Sheet - Intended to provide workers and emergency personnel
with procedures for "handling or working with that substance in a safe manner"
3 types of pressure treated wood - CCA - contains arsenic
ACQ - contains copper that corrodes steels
CA - Repacement for cca and Acq; less hazardous
Cellulose Chemicals - Amm Sulfate - corrosive to metal when wet
Ammon Nitrate - bomb making
Sodium Borate - insect repellent and flame retardent
Types of Caulk - Oil-based
Acrylic/Latex based
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