ASD EXAM WITH COMPLETE VERIFIED SOLUTIONS ALREADY GRADED A+

Category 1 Category of Water that originates from sanitary water source (Clean) Catetroy 2 Category of Water that is contaminated; may cause discomfort or sickness (Grey) Category 3 Category of Water that is grossly contaminated; includes toxins, pathogens Special Situation Regulated or hazardous materials Class 1 Class of water that has least amount of water, absorption and evaporation Class 2 Class of water that has large amount of water, absorption and evaporation (carpet; cushion; base of walls) Class 3 Class of water that is the greatest amount of water, absorption and evaporation (ceiling; walls; insulation; flooring) Class 4 Class of water - Hardwood; plaster; concrete - Deep pockets of saturation Principles of Drying Remove excess / Evaporation / Dehumidification (Ventilation) / Temperature Control Light Wand Extraction Tool - Perimeter of water loss; extract glue-down carpets Stationary Tool (Water Claw) Extraction Tool - Subsurface Tool; Extract Carpet and Cushion. Self-Propelled Tools Extraction Tool - (Rober; Xtreme Xtractor) - Riding Tool; multi-speed; extract carpet and cushion. Vacuum Squeegee Extraction Tool - Concrete; hardwood; vinyl; laminate; Airmovers 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. Placement of Airmovers Structural Cavity Drying Systems (SCDS) vented (turbovents 18" - 48" widths' Octidry; Air Wolf injected (Injectidry; Dri-Force; Direct-it In) Floor Drying System vented (Air Wolf) Injected - negative air mats (Dri-Force; Injectidry) Air Filtration Devices AFDs (negative air machines; air scrubbers; HEPA filters) AHAM Rating On dehumidification equipment it is the pints removed at 80 degrees and 60% humidity in 24 hours. Standard Refrigerant Temperature - 68 degress Relative Humidity - 60% Specific Humidity (gpp) - 55-60 Conventional Temperature - 33 degrees Relative Humidity - 40% Specific Humidity (gpp) - 55-60 Low Grain Refrigerant (LGR) Temperature - 40 degrees Relative Humidity - 30% Specific Humidity (gpp) - 28-35 Desiccant Temperature - 32 degrees Relative Humidity - 10% - below Specific Humidity (gpp) - 10-15 - below Refrigerants Dehumidifiers that are most efficient operating conditions 70-90 degrees (most energy efficient) Desiccants 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 Initial Dehumidification Calculations Class 1 = 100 Class 2 = 40 Class 3 = 30 Class 4 = N/A LGR Initial Dehumidification Calculations Class 1 = 100 Class 2 = 50 Class 3 = 40 Class 4 = 50 Desiccant Initial Dehumidification Calculations Class 1 = 1 ACH Class 2 = 2 ACH Class 3 = 3 ACH Class 4 = 2 ACH Amperes (amperage or amps) The amount of electricity (current) flowing in a circuit Voltage The force of electricity flow in a circuit Watts The amount of electricity an electrical devices uses when operating BTUs (British Thermal Units) Heat generated by electrical device. amps x volts x 3.4 BTUs per hour formula 12,000 HVAC removes _________ BTUs per ton. 15 Residental is generally ___ amp 20 Commerical is generally ___ amp 220 splitters Use where there is limited amperage or fuses 2 - 100 Use 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 Power Consumption Formula Moisture Sensor Senses moisture in materials over 17% MC; helps determine perimeter of water damage; unable to determine which layer is wet or when dry. Thermo-hygromter Determines 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 Invasive and non-invasive; determines moisture content; establish, monitor and determine when dry standards are met. Miscellaneous - infrared camera and thermometer; manometer; borescopes; data loggers. EPA (Environmental Protection Agency) U.S. federal agency with regulatory control over biocides FIFRA (Federal Insecticide, Fungicide and Rodenticide Act) U.S. federal regulations administered by the EPA Stretch-In, Direct Glue-Down, Double Glue Down Three installation methods for carpet. In-place, Full Float, Partial Float Three drying methods for carpet. Carpet Construction Woven - Axminster, Wilton; usually natural fibers; tufted - primary synthetic. Delamination Separation of the primary and secondary backings; laminate strength loss up to 85% when wet. Category 3 What category must you remove and dispose of the carpet; IEP may be required for testing.