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Water Damage Restoration Test (2024/2025) | Actual Questions and Answers Latest Updated 20, Exams of Environmental Engineering

Wright State University (WSU) - Lake CampusEnvironmental Engineering

A primary responsibility after arriving on a water loss is to _______, once done you should then _______ Answer ✔✔Identify safety hazards Manage the hazard T/F Do not use equipment with damaged cord or ground plug missing Answer ✔✔T equipment with damaged cords need to be taken out of service and properly repaired Chemical molds produce to fend off other microorganisms Answer ✔✔Mycotoxins The at risk/high risk population includes Answer ✔✔Under 2 Very old Immune suppressed/compromised people People with allergies People with respiratory problems I.E.P Answer ✔✔Indoor environmental professional

Typology: Exams

2023/2024

Available from 08/29/2024

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Water Damage Restoration Test (2024/2025) | Actual Questions and Answers
Latest Updated 2024/2025 (Graded A+)
A primary responsibility after arriving on a water loss is to _______, once done you should then _______
Answer ✔✔Identify safety hazards
Manage the hazard
T/F Do not use equipment with damaged cord or ground plug missing Answer ✔✔T equipment with
damaged cords need to be taken out of service and properly repaired
Chemical molds produce to fend off other microorganisms Answer ✔✔Mycotoxins
The at risk/high risk population includes Answer ✔✔Under 2
Very old
Immune suppressed/compromised people
People with allergies
People with respiratory problems
I.E.P Answer ✔✔Indoor environmental professional
When should an IEP be brought in Answer ✔✔If high risk people are involved in water loss
What must technicians first do before they are able to wear respirators Answer ✔✔Be medically
evaluated
Fit tested
Trained to don and doff
Trained to maintain the respirator
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Partial preview of the text

Download Water Damage Restoration Test (2024/2025) | Actual Questions and Answers Latest Updated 20 and more Exams Environmental Engineering in PDF only on Docsity!

Water Damage Restoration Test ( 2024 / 2025 ) | Actual Questions and Answers

Latest Updated 2024/2025 (Graded A+)

A primary responsibility after arriving on a water loss is to _______, once done you should then _______ Answer ✔✔Identify safety hazards Manage the hazard T/F Do not use equipment with damaged cord or ground plug missing Answer ✔✔T equipment with damaged cords need to be taken out of service and properly repaired Chemical molds produce to fend off other microorganisms Answer ✔✔Mycotoxins The at risk/high risk population includes Answer ✔✔Under 2 Very old Immune suppressed/compromised people People with allergies People with respiratory problems I.E.P Answer ✔✔Indoor environmental professional When should an IEP be brought in Answer ✔✔If high risk people are involved in water loss What must technicians first do before they are able to wear respirators Answer ✔✔Be medically evaluated Fit tested Trained to don and doff Trained to maintain the respirator

What should technicians do if mold is discovered Answer ✔✔Use appropriate measures (Personal Protective Equipment) contaminant or other engineering controls Water waste should be disposed of _______ Answer ✔✔In accordance to local and state laws In a sanitary sewer system Two of the most common hazardous materials found in structires Answer ✔✔Asbestos and lead When it comes to EPA registered disinfectants ... Answer ✔✔Always follow directions on label T/F occupants and pets should be evacuated during application Answer ✔✔T Make sure electrical equipment used in water damage has: Answer ✔✔A ground fault circuit interrupter What is an easy safety step you should take to protect your health Answer ✔✔Wear PPE (personal protective equipment) The most common safety concern at a water damage is: Answer ✔✔Slip, trip and fall Wear your respirator: Answer ✔✔When dealing with organic vapors When spraying solvents When dealing with sewage or mold What are the potentially poisonous toxins found in mold Answer ✔✔Mycotoxins Psychrometry Answer ✔✔The study of humidity, air flow and temp and their effects on property Relative humidity Answer ✔✔Amount of moisture in the air expressed as a percentage of a max air amount the air could contain at a specified temp

Balanced drying Answer ✔✔Achieved when the rate of evaporation is equal to or slightly lower than the rate of dehumidification Primary damages are a result of Answer ✔✔The water Secondary damages are a result of Answer ✔✔High water vapor (humidity) When can high amounts of water vapor occur Answer ✔✔When your rate of evaporation is significantly higher than your rate of dehumidification Saturation temperature/dew point Answer ✔✔Total saturation The air can not hold any additional water Permeance Answer ✔✔Ability of water vapor to pass through a material Vapor barrier Answer ✔✔Materials that have a permeance factor of 1 or less Dew point Answer ✔✔The temp at which water vapor begins to turn to a liquid Relative humidity is the percent of moisture in the air at a given ________ Answer ✔✔Temperature Humidity ratio is a better measure than relative humidity because it gives the _______ weight of water per pound of dry air Answer ✔✔Actual Nature always seeks ___________ Answer ✔✔Equilibrium A vapor barrier typically has a permeance factor: Answer ✔✔Less than 1 The US humidity ratio is measured in: Answer ✔✔Grains per pound

If you know the relative humidity and the temp you can use a psychrometric chart to determine Answer ✔✔Humidity ratio Vapor pressure Dew point temp T/F all things equal, increasing air temp will lower relative humidity Answer ✔✔T Materials which are highly prone to secondary damage cause by high humidity are called? Answer ✔✔Hygroscopic Category 1 water Answer ✔✔Originated from a sanitary water source and doesn't pose a substantial risk Category 2 water Answer ✔✔Significant contamination with potential to cause discomfort or sickness Category 3 water Answer ✔✔- Water is grossly contaminated

  • carpet and pad always removed What is the most important factor of category 3 water Answer ✔✔Health of workers and occupants If a regulated or hazardous material is part of a water damage restoration project who may be necessary to assist in damage assessment Answer ✔✔A specialized expert Class 1 water damage Answer ✔✔Least amount of water Less than 5% of the combined room is effected Class 2 water damage Answer ✔✔Significant amount of water 40% or less of the combined room is effected

When determining relative humidity where should you check Answer ✔✔Affected areas Unaffected areas Each dehumidifier HVAC What does a drying goal include Answer ✔✔A measurement of moisture content or level for all affected materials taken from an unaffected area, comparable building or known EMC If outdoor GPP is lower than indoor you should consider using what kind of drying system Answer ✔✔Open drying system Upon entry to a water damage structure what should a restorer do Answer ✔✔Use professional moisture detection equipment to determine psychrometric conditions and moisture content or moisture level readings Thermohygrometer Answer ✔✔Measures temperature and relative humidity Thermal image cameras Answer ✔✔Uses infrared technology to find evaporative cooling To operate the air mover in a manner, what should the technician do Answer ✔✔Have safety screens on the inlets and outlets and cord with 3 prong (AFD) air filtration devices, trap ______% of particles 0.3 microns and larger Answer ✔✔99. Refrigerant dehumidifiers Answer ✔✔- most effective type of dehumidifier

  • removes moisture by pulling air across cold refrigerant coils causing the moisture to condense
  • works best between 70-90 degrees Conventional refrigerant Answer ✔✔Loses efficiency when air dries below 55 gpp

Low grain refrigerant Answer ✔✔Som go as low as 34 gpp Desiccant Answer ✔✔Create the lowest vapor pressure and dpp Sterilizers Answer ✔✔Destroy 100% or organisms Sanitizers Answer ✔✔Reduce number of organisms to a safe level What are the two basic types of SEEVPRO Answer ✔✔Portable and truck mounted Moisture content Answer ✔✔The percentage of moisture in materials was compared to the weight of that material when oven dry