Exam (elaborations)
IICRC - Applied Structural Drying Verified Questions And Answers
IICRC - Applied Structural Drying Verified Questions And Answers
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IICRC - Applied Structural Drying Verified Questions And
Answers
Air .Filtration .Device .(ADF) .- .answer-
Commonly .called .an .air .scrubber .or .negative .air .machine .if .airborne .particles .need .to .be .
reduced, .you .could .use .an .appropriately .installed ._______ .________ .________
Air .Filtration .Device .- .answer-AFD
Assembly .Construction .- .answer-
Prior .to .determining .the .best .drying .system .for .affected .materials, .restorers .should .identi
fy .and .understand .the .assembly .construction .(ie .wall .assembly, .floor .assembly)
Category .1 .- .answer-
water .originates .from .a .sanitary .source .and .does .not .pose .substantial .risk .for .dermal, .ing
estion, .inhalation, .or .exposure. .Uncontaminated .and .routinely .cleaned
Category .2 .- .answer-
water .contains .significant .contamination .and .has .the .potential .to .cause .discomfort .or .sic
kness .if .contacted .or .consumed .by .humans
Category .3 .- .answer-
water .is .grossly .contaminated .and .can .contain .pathogenic, .toxigenic, .or .other .harmful .ag
ents
Sewage .Back .Up .- .answer-Category .3
,Clean .water .supply .line .- .answer-Category .1
Class .1 .- .answer-
Least .amount .of .water .absorption .and .evaporation .load .- .Wet .porous .materials .- .water .lo
ss .is .less .then .5% .of .the .area
Class .2 .- .answer-
Significant .amount .of .water .absorption .and .evaporation .load .- .water .intrusion .where .wet
.represents .5% .- .40% .of .the .area.
Class .3 .- .answer-
greatest .amount .of .water .absorption .and .evaporation .load. .Water .intrusion .where .wet .re
presents .over .40% .of .the .area
Class .4 .- .answer-deeply .held .or .bound .water. .Significant .amount .of .water .absorption .into
.low .evaporation .materials. .Drying .may .require .special .drying .methods, .longer .drying .tim
e, .or .substantial .water .vapor .pressure .differentials.
Closed .drying .system .- .answer-
Uses .mechanical .dehumidification .and .is .not .open .to .outside .air. .Used .if .there .are .securit
y .issues, .the .outside .air .is .not .conductive .to .drying .or .when .access .to .outside .air .is .not .p
ossible.
Conventual .refrigerant .dehumidifier .- .answer-
Removes .water .vapor .from .the .air .by .lowering .the .temperature .of .the .incoming .air .to .bel
ow .dew .point .and .causing .the .water .to .condense .on .the .coils. .Cold .and .hot .surfaces .creat
ed .with .gases .inside .a .closed .coil .system.
Combination .Drying .System .- .answer-
uses .some .outdoor .air .with .dehumidifiers .to .accelerate .the .drying .process. .This .can .inclu
, de .periodically .venting .
(flushing) .the .structure, .using .negative .pressure .or .using .small .openings .to .the .outside
Desiccant .dehumidifier .- .answer-
Removes .water .vapor .from .the .air .through .absorption. .Usually .requires .more .amperage .
as .compared .to .refrigerant .dehumidifier. .Desiccants .create .the .lowest .vapor .pressure .whi
ch .work .best .on .low .porosity .materials. .When .a .desiccant .dehu .is .drawing .outside .air .an
d .ducting .processed .air .inside .a .building .it .can .create .positive .pressure .in .the .building. .T
o .improve .desiccant .dehu .performance, .it .may .be .beneficial .to .pre-
cool .the .desiccants .air .intake
Infiltration .- .answer-
High .humidity .outside .air .could .affect .the .drying .climate .adversely .due .to .______________
1. .Tightness .of .the .building .envelope
2. .Prevailing .weather
3. .HVAC
4. .Class .of .Water
5. .Building .Construction
5. .Build .out .density .- .answer-Favors .that .affect .the .detailed .dehumidifier .calculation .is:
Detailed .Dehumidification .Calculation .- .answer-See .Chart: .
Cubic .Feet .: .Divided .by .70 .= .Base .Pints .per .day
Multiply .the .5 .multipliers .together: .Build .out .density .x .building .construction .x .class .of .w
ater .x .HVAC .x .Weather .Impact .= .Multiplier
Multiply .Base .Pints .per .day .x .Multiplier .= .Adjusted .Pints .Per .Day
Dry .Standards .- .answer-
The .unaffected .material .readings .are .called .______ .______. .You .know .you .can .use .this .as .you
r .drying .goal. .Your .drying .goal .is .this .plus .10% .of .it.