ASD EXAM QUESTIONS AND ANSWERS
100% ACCURATE.
Category 1 - ANSWERSCategory of Water that originates from sanitary water source
(Clean)
Catetroy 2 - ANSWERSCategory of Water that is contaminated; may cause discomfort
or sickness (Grey)
Category 3 - ANSWERSCategory of Water that is grossly contaminated; includes
toxins, pathogens
Special Situation - ANSWERSRegulated or hazardous materials
Class 1 - ANSWERSClass of water that has least amount of water, absorption and
evaporation
Class 2 - ANSWERSClass of water that has large amount of water, absorption and
evaporation (carpet; cushion; base of walls)
Class 3 - ANSWERSClass of water that is the greatest amount of water, absorption and
evaporation (ceiling; walls; insulation; flooring)
Class 4 - ANSWERSClass of water - Hardwood; plaster; concrete - Deep pockets of
saturation
Principles of Drying - ANSWERSRemove excess / Evaporation / Dehumidification
(Ventilation) / Temperature Control
Light Wand - ANSWERSExtraction Tool - Perimeter of water loss; extract glue-down
carpets
Stationary Tool (Water Claw) - ANSWERSExtraction Tool - Subsurface Tool; Extract
Carpet and Cushion.
Self-Propelled Tools - ANSWERSExtraction Tool - (Rober; Xtreme Xtractor) - Riding
Tool; multi-speed; extract carpet and cushion.
Vacuum Squeegee - ANSWERSExtraction Tool - Concrete; hardwood; vinyl; laminate;
Airmovers - ANSWERSEvaporation Tool - centrifugal (laminar); axial (high-amperage;
low amperage; focus ability)
,1 per 10-16 linear ft. of wall area; 15-45 degree focus; almost touching wall. -
ANSWERSPlacement of Airmovers
Structural Cavity Drying Systems - ANSWERS(SCDS)
vented (turbovents 18" - 48" widths' Octidry; Air Wolf
injected (Injectidry; Dri-Force; Direct-it In)
Floor Drying System - ANSWERSvented (Air Wolf)
Injected - negative air mats (Dri-Force; Injectidry)
Air Filtration Devices - ANSWERSAFDs (negative air machines; air scrubbers; HEPA
filters)
AHAM Rating - ANSWERSOn dehumidification equipment it is the pints removed at 80
degrees and 60% humidity in 24 hours.
Standard Refrigerant - ANSWERSTemperature - 68 degress
Relative Humidity - 60%
Specific Humidity (gpp) - 55-60
Conventional - ANSWERSTemperature - 33 degrees
Relative Humidity - 40%
Specific Humidity (gpp) - 55-60
Low Grain Refrigerant (LGR) - ANSWERSTemperature - 40 degrees
Relative Humidity - 30%
Specific Humidity (gpp) - 28-35
Desiccant - ANSWERSTemperature - 32 degrees
Relative Humidity - 10% - below
Specific Humidity (gpp) - 10-15 - below
Refrigerants - ANSWERSDehumidifiers that are most efficient operating conditions 70-
90 degrees (most energy efficient)
Desiccants - ANSWERSDehumidifiers that are most efficient with incoming air from
coolest/driest air possible; capable of creating pressure differentials; produces low
specific humidity required to dry Class 4 materials.
Conventional - ANSWERSInitial Dehumidification Calculations
Class 1 = 100
Class 2 = 40
Class 3 = 30
Class 4 = N/A
LGR - ANSWERSInitial Dehumidification Calculations
, Class 1 = 100
Class 2 = 50
Class 3 = 40
Class 4 = 50
Desiccant - ANSWERSInitial Dehumidification Calculations
Class 1 = 1 ACH
Class 2 = 2 ACH
Class 3 = 3 ACH
Class 4 = 2 ACH
Amperes (amperage or amps) - ANSWERSThe amount of electricity (current) flowing in
a circuit
Voltage - ANSWERSThe force of electricity flow in a circuit
Watts - ANSWERSThe amount of electricity an electrical devices uses when operating
BTUs (British Thermal Units) - ANSWERSHeat generated by electrical device.
amps x volts x 3.4 - ANSWERSBTUs per hour formula
12,000 - ANSWERSHVAC removes _________ BTUs per ton.
15 - ANSWERSResidental is generally ___ amp
20 - ANSWERSCommerical is generally ___ amp
220 splitters - ANSWERSUse where there is limited amperage or fuses
2 - 100 - ANSWERSUse no more than ____, five-amp airmovers per ____ ft., 12 gauge
extension cord.
volts x amps x 24 hours = watts / 1000 = kw x cost per kw per day - ANSWERSPower
Consumption Formula
Moisture Sensor - ANSWERSSenses moisture in materials over 17% MC; helps
determine perimeter of water damage; unable to determine which layer is wet or when
dry.
Thermo-hygromter - ANSWERSDetermines temperature / RH in all required
atmospheric areas of inspection; helps determine open or closed drying system; further
determines dehumidifier requirements after initial placement.
Moisture Meter - ANSWERSInvasive and non-invasive; determines moisture content;
establish, monitor and determine when dry standards are met.
100% ACCURATE.
Category 1 - ANSWERSCategory of Water that originates from sanitary water source
(Clean)
Catetroy 2 - ANSWERSCategory of Water that is contaminated; may cause discomfort
or sickness (Grey)
Category 3 - ANSWERSCategory of Water that is grossly contaminated; includes
toxins, pathogens
Special Situation - ANSWERSRegulated or hazardous materials
Class 1 - ANSWERSClass of water that has least amount of water, absorption and
evaporation
Class 2 - ANSWERSClass of water that has large amount of water, absorption and
evaporation (carpet; cushion; base of walls)
Class 3 - ANSWERSClass of water that is the greatest amount of water, absorption and
evaporation (ceiling; walls; insulation; flooring)
Class 4 - ANSWERSClass of water - Hardwood; plaster; concrete - Deep pockets of
saturation
Principles of Drying - ANSWERSRemove excess / Evaporation / Dehumidification
(Ventilation) / Temperature Control
Light Wand - ANSWERSExtraction Tool - Perimeter of water loss; extract glue-down
carpets
Stationary Tool (Water Claw) - ANSWERSExtraction Tool - Subsurface Tool; Extract
Carpet and Cushion.
Self-Propelled Tools - ANSWERSExtraction Tool - (Rober; Xtreme Xtractor) - Riding
Tool; multi-speed; extract carpet and cushion.
Vacuum Squeegee - ANSWERSExtraction Tool - Concrete; hardwood; vinyl; laminate;
Airmovers - ANSWERSEvaporation Tool - centrifugal (laminar); axial (high-amperage;
low amperage; focus ability)
,1 per 10-16 linear ft. of wall area; 15-45 degree focus; almost touching wall. -
ANSWERSPlacement of Airmovers
Structural Cavity Drying Systems - ANSWERS(SCDS)
vented (turbovents 18" - 48" widths' Octidry; Air Wolf
injected (Injectidry; Dri-Force; Direct-it In)
Floor Drying System - ANSWERSvented (Air Wolf)
Injected - negative air mats (Dri-Force; Injectidry)
Air Filtration Devices - ANSWERSAFDs (negative air machines; air scrubbers; HEPA
filters)
AHAM Rating - ANSWERSOn dehumidification equipment it is the pints removed at 80
degrees and 60% humidity in 24 hours.
Standard Refrigerant - ANSWERSTemperature - 68 degress
Relative Humidity - 60%
Specific Humidity (gpp) - 55-60
Conventional - ANSWERSTemperature - 33 degrees
Relative Humidity - 40%
Specific Humidity (gpp) - 55-60
Low Grain Refrigerant (LGR) - ANSWERSTemperature - 40 degrees
Relative Humidity - 30%
Specific Humidity (gpp) - 28-35
Desiccant - ANSWERSTemperature - 32 degrees
Relative Humidity - 10% - below
Specific Humidity (gpp) - 10-15 - below
Refrigerants - ANSWERSDehumidifiers that are most efficient operating conditions 70-
90 degrees (most energy efficient)
Desiccants - ANSWERSDehumidifiers that are most efficient with incoming air from
coolest/driest air possible; capable of creating pressure differentials; produces low
specific humidity required to dry Class 4 materials.
Conventional - ANSWERSInitial Dehumidification Calculations
Class 1 = 100
Class 2 = 40
Class 3 = 30
Class 4 = N/A
LGR - ANSWERSInitial Dehumidification Calculations
, Class 1 = 100
Class 2 = 50
Class 3 = 40
Class 4 = 50
Desiccant - ANSWERSInitial Dehumidification Calculations
Class 1 = 1 ACH
Class 2 = 2 ACH
Class 3 = 3 ACH
Class 4 = 2 ACH
Amperes (amperage or amps) - ANSWERSThe amount of electricity (current) flowing in
a circuit
Voltage - ANSWERSThe force of electricity flow in a circuit
Watts - ANSWERSThe amount of electricity an electrical devices uses when operating
BTUs (British Thermal Units) - ANSWERSHeat generated by electrical device.
amps x volts x 3.4 - ANSWERSBTUs per hour formula
12,000 - ANSWERSHVAC removes _________ BTUs per ton.
15 - ANSWERSResidental is generally ___ amp
20 - ANSWERSCommerical is generally ___ amp
220 splitters - ANSWERSUse where there is limited amperage or fuses
2 - 100 - ANSWERSUse no more than ____, five-amp airmovers per ____ ft., 12 gauge
extension cord.
volts x amps x 24 hours = watts / 1000 = kw x cost per kw per day - ANSWERSPower
Consumption Formula
Moisture Sensor - ANSWERSSenses moisture in materials over 17% MC; helps
determine perimeter of water damage; unable to determine which layer is wet or when
dry.
Thermo-hygromter - ANSWERSDetermines temperature / RH in all required
atmospheric areas of inspection; helps determine open or closed drying system; further
determines dehumidifier requirements after initial placement.
Moisture Meter - ANSWERSInvasive and non-invasive; determines moisture content;
establish, monitor and determine when dry standards are met.
