ASD EXAM QUESTIONS AND ANSWERS
100% CORRECT
Category 1 - ANSWER-Category of Water that originates from sanitary water source
(Clean)
Catetroy 2 - ANSWER-Category of Water that is contaminated; may cause discomfort
or sickness (Grey)
Category 3 - ANSWER-Category of Water that is grossly contaminated; includes toxins,
pathogens
Special Situation - ANSWER-Regulated or hazardous materials
Class 1 - ANSWER-Class of water that has least amount of water, absorption and
evaporation
Class 2 - ANSWER-Class of water that has large amount of water, absorption and
evaporation (carpet; cushion; base of walls)
Class 3 - ANSWER-Class of water that is the greatest amount of water, absorption and
evaporation (ceiling; walls; insulation; flooring)
Class 4 - ANSWER-Class of water - Hardwood; plaster; concrete - Deep pockets of
saturation
Principles of Drying - ANSWER-Remove excess / Evaporation / Dehumidification
(Ventilation) / Temperature Control
Light Wand - ANSWER-Extraction Tool - Perimeter of water loss; extract glue-down
carpets
Stationary Tool (Water Claw) - ANSWER-Extraction Tool - Subsurface Tool; Extract
Carpet and Cushion.
Self-Propelled Tools - ANSWER-Extraction Tool - (Rober; Xtreme Xtractor) - Riding
Tool; multi-speed; extract carpet and cushion.
Vacuum Squeegee - ANSWER-Extraction Tool - Concrete; hardwood; vinyl; laminate;
Airmovers - ANSWER-Evaporation 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. - ANSWER-
Placement of Airmovers
Structural Cavity Drying Systems - ANSWER-(SCDS)
vented (turbovents 18" - 48" widths' Octidry; Air Wolf
injected (Injectidry; Dri-Force; Direct-it In)
Floor Drying System - ANSWER-vented (Air Wolf)
Injected - negative air mats (Dri-Force; Injectidry)
Air Filtration Devices - ANSWER-AFDs (negative air machines; air scrubbers; HEPA
filters)
AHAM Rating - ANSWER-On dehumidification equipment it is the pints removed at 80
degrees and 60% humidity in 24 hours.
Standard Refrigerant - ANSWER-Temperature - 68 degress
Relative Humidity - 60%
Specific Humidity (gpp) - 55-60
Conventional - ANSWER-Temperature - 33 degrees
Relative Humidity - 40%
Specific Humidity (gpp) - 55-60
Low Grain Refrigerant (LGR) - ANSWER-Temperature - 40 degrees
Relative Humidity - 30%
Specific Humidity (gpp) - 28-35
Desiccant - ANSWER-Temperature - 32 degrees
Relative Humidity - 10% - below
Specific Humidity (gpp) - 10-15 - below
Refrigerants - ANSWER-Dehumidifiers that are most efficient operating conditions 70-
90 degrees (most energy efficient)
Desiccants - ANSWER-Dehumidifiers 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 - ANSWER-Initial Dehumidification Calculations
Class 1 = 100
Class 2 = 40
Class 3 = 30
Class 4 = N/A
LGR - ANSWER-Initial Dehumidification Calculations
, Class 1 = 100
Class 2 = 50
Class 3 = 40
Class 4 = 50
Desiccant - ANSWER-Initial Dehumidification Calculations
Class 1 = 1 ACH
Class 2 = 2 ACH
Class 3 = 3 ACH
Class 4 = 2 ACH
Amperes (amperage or amps) - ANSWER-The amount of electricity (current) flowing in
a circuit
FIFRA (Federal Insecticide, Fungicide and Rodenticide Act) - ANSWER-U.S. federal
regulations administered by the EPA
Stretch-In, Direct Glue-Down, Double Glue Down - ANSWER-Three installation
methods for carpet.
In-place, Full Float, Partial Float - ANSWER-Three drying methods for carpet.
Carpet Construction - ANSWER-Woven - Axminster, Wilton; usually natural fibers;
tufted - primary synthetic.
Delamination - ANSWER-Separation of the primary and secondary backings; laminate
strength loss up to 85% when wet.
Category 3 - ANSWER-What category must you remove and dispose of the carpet; IEP
may be required for testing.
TYpes of Cushion - ANSWER-foam (prime, bonded urethane); rubber; felt (hair/jute,
synthetic); porous and non-porous.
Voltage - ANSWER-The force of electricity flow in a circuit
Watts - ANSWER-The amount of electricity an electrical devices uses when operating
BTUs (British Thermal Units) - ANSWER-Heat generated by electrical device.
amps x volts x 3.4 - ANSWER-BTUs per hour formula
12,000 - ANSWER-HVAC removes _________ BTUs per ton.
15 - ANSWER-Residental is generally ___ amp
100% CORRECT
Category 1 - ANSWER-Category of Water that originates from sanitary water source
(Clean)
Catetroy 2 - ANSWER-Category of Water that is contaminated; may cause discomfort
or sickness (Grey)
Category 3 - ANSWER-Category of Water that is grossly contaminated; includes toxins,
pathogens
Special Situation - ANSWER-Regulated or hazardous materials
Class 1 - ANSWER-Class of water that has least amount of water, absorption and
evaporation
Class 2 - ANSWER-Class of water that has large amount of water, absorption and
evaporation (carpet; cushion; base of walls)
Class 3 - ANSWER-Class of water that is the greatest amount of water, absorption and
evaporation (ceiling; walls; insulation; flooring)
Class 4 - ANSWER-Class of water - Hardwood; plaster; concrete - Deep pockets of
saturation
Principles of Drying - ANSWER-Remove excess / Evaporation / Dehumidification
(Ventilation) / Temperature Control
Light Wand - ANSWER-Extraction Tool - Perimeter of water loss; extract glue-down
carpets
Stationary Tool (Water Claw) - ANSWER-Extraction Tool - Subsurface Tool; Extract
Carpet and Cushion.
Self-Propelled Tools - ANSWER-Extraction Tool - (Rober; Xtreme Xtractor) - Riding
Tool; multi-speed; extract carpet and cushion.
Vacuum Squeegee - ANSWER-Extraction Tool - Concrete; hardwood; vinyl; laminate;
Airmovers - ANSWER-Evaporation 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. - ANSWER-
Placement of Airmovers
Structural Cavity Drying Systems - ANSWER-(SCDS)
vented (turbovents 18" - 48" widths' Octidry; Air Wolf
injected (Injectidry; Dri-Force; Direct-it In)
Floor Drying System - ANSWER-vented (Air Wolf)
Injected - negative air mats (Dri-Force; Injectidry)
Air Filtration Devices - ANSWER-AFDs (negative air machines; air scrubbers; HEPA
filters)
AHAM Rating - ANSWER-On dehumidification equipment it is the pints removed at 80
degrees and 60% humidity in 24 hours.
Standard Refrigerant - ANSWER-Temperature - 68 degress
Relative Humidity - 60%
Specific Humidity (gpp) - 55-60
Conventional - ANSWER-Temperature - 33 degrees
Relative Humidity - 40%
Specific Humidity (gpp) - 55-60
Low Grain Refrigerant (LGR) - ANSWER-Temperature - 40 degrees
Relative Humidity - 30%
Specific Humidity (gpp) - 28-35
Desiccant - ANSWER-Temperature - 32 degrees
Relative Humidity - 10% - below
Specific Humidity (gpp) - 10-15 - below
Refrigerants - ANSWER-Dehumidifiers that are most efficient operating conditions 70-
90 degrees (most energy efficient)
Desiccants - ANSWER-Dehumidifiers 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 - ANSWER-Initial Dehumidification Calculations
Class 1 = 100
Class 2 = 40
Class 3 = 30
Class 4 = N/A
LGR - ANSWER-Initial Dehumidification Calculations
, Class 1 = 100
Class 2 = 50
Class 3 = 40
Class 4 = 50
Desiccant - ANSWER-Initial Dehumidification Calculations
Class 1 = 1 ACH
Class 2 = 2 ACH
Class 3 = 3 ACH
Class 4 = 2 ACH
Amperes (amperage or amps) - ANSWER-The amount of electricity (current) flowing in
a circuit
FIFRA (Federal Insecticide, Fungicide and Rodenticide Act) - ANSWER-U.S. federal
regulations administered by the EPA
Stretch-In, Direct Glue-Down, Double Glue Down - ANSWER-Three installation
methods for carpet.
In-place, Full Float, Partial Float - ANSWER-Three drying methods for carpet.
Carpet Construction - ANSWER-Woven - Axminster, Wilton; usually natural fibers;
tufted - primary synthetic.
Delamination - ANSWER-Separation of the primary and secondary backings; laminate
strength loss up to 85% when wet.
Category 3 - ANSWER-What category must you remove and dispose of the carpet; IEP
may be required for testing.
TYpes of Cushion - ANSWER-foam (prime, bonded urethane); rubber; felt (hair/jute,
synthetic); porous and non-porous.
Voltage - ANSWER-The force of electricity flow in a circuit
Watts - ANSWER-The amount of electricity an electrical devices uses when operating
BTUs (British Thermal Units) - ANSWER-Heat generated by electrical device.
amps x volts x 3.4 - ANSWER-BTUs per hour formula
12,000 - ANSWER-HVAC removes _________ BTUs per ton.
15 - ANSWER-Residental is generally ___ amp
