ASD COURSE EXAM STUDY MATERIAL Flashcards
what are “in place” drying techniques?
Leave the baseboards in place and dry with very dry air
A restorer must know __________ and _________. Once this has been identified the restorer must ________
where the water went
and what is wet
address the wet areas/materials as scope of loss
____ studs often trap moisture in the _______. And it is very prudent to inspect them.
metal studs
“c” channels
water that has caused blown cellulosic insulation to become wet will potentially cause it to pack down and lose ______. This compromising consequence is NOT applicable to ALL types of insulation. If the water rises above the sill plate level, it is appropriate to _________
“r” value
inspect the insulation via inspection holes in the wallboard
Which is more efficient ? Physical extraction or evaporation of water?
Is it more important to know how much water is left behind? or how much was removed?
Physical is more efficient.
How much was left behind.
When a wet carpet is over a cushion use _____ extraction. When wet carpet is glued down use a ______. You will know the extraction is adequate when water cannot be squeezed from the cushion with your hands.
Deep extraction
Light wand
When extracting water from a carpet and pad, the hoses should be the ______ in length and in ______ straight stretches.
shortest in length, long straight stretches.
Heavy face yarn carpet, multi level, made of olefin, looped yarn on a heavyweight pad are ________
difficult to extract from even with deep extraction tools
In place drying techniques are good for category ___. Drying in place will not cause further damage, and there is enough drying equipment available.
1
In a “in place” drying technique you extract from the _____ of the room first. Relocating the furniture on blocks or pads in the extracted area, and then completing extraction of the water from the ______. The furniture is typically left in the _____
center
perimeter
drying chamber
Floor registers can often be ______. Enabling an inspection of the floor materials and its assembly.
Lifted
_________ are very sensitive instruments that can give skewed readings. Technicians should be trained for their use.
Thermohygrometers
100% relative humidity being “saturated” is ________ because air does not hold water. A better phrase is __________ because vapor pressure is produced when a phase change takes place.
Incorrect
Equilibrium vapor pressure
a pound of anything can also be expressed as ______ grains
7000
Humidity ratios are expressed as ______
Grains per pound of dry air
as the environmental humidity decreases so will the _____ and _____ (given at a constant barometric pressure)
vapor pressure and dew point
Some believe a pound of air is approximately __________
14 cubic feet.
Cupping is from the ________. Crowning is from the ________
Bottom and sides
Top
If a permeance “perm” rating is less than ___ it is considered a retarding material. The act of water vapor equalizing within a material is called _______
1.0
vapor diffusion
_______ allows the GREATEST vapor permeance
_______ resists vapor permeance and has a low permeance rating
flat latex paint
high gloss enamel paint
when air is drawn into a building through cracks and crevices, the building is undergoing ________. When the air inside the building is pressurized the air will drive out of the building through the cracks/crevices, this is called _______. Technicians can use these to control odors/contaminants.
infiltration
exfiltration
you can use fans to create pressure differentials between the _______ and ______. This can be an open drying system.
drying chamber
another environment
Restorer should understand the limitations to the amount of ______ that is passed through electrical extension cords. The NEC ____ rule must be followed to safely power the equipment.
Electricity
80%
______ drying techniques usually employ the removal of doors between rooms to prevent restriction of airflow
In place drying
