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Radon
Radon Measurement
| Question | Answer |
|---|---|
| You would have expected the radon levels above the slab to be- | same as listed |
| The furnace running continuosly will impact the radon levels in the basement how? | The radon level will be higher |
| Increased air circulation causes what to occur? | Plating out |
| Radon rises throughout a home due to | stack effect |
| Which particles have approximately the same size and mass as each other | proton and neutrons |
| which to particles would be attracted to each other | electrons and protons |
| The atomic number of an atom is: | the number of protons |
| changing the number of neutrons of an atom changes its | isotope |
| The three basic components of an atom are | protons, neutron and electrons |
| an element is determined by the number of | protons |
| the neucleus of an atom consists of | protons and neutrons |
| a single proton has what electrical charge | positive charge |
| Cleaning the air with an electronic air cleaner will: | Change the equilibrium ratio |
| The main factor influencing most soil -gas entry is : | the house being at a lower pressure than the soil under it. |
| what would most likely permit the greatest entry of soil gas in a slab on grade house | Metal heating ducts under slab |
| Which equilibrium ratio (ER) is commonly assumed as an average level in most houses | 0.5 |
| Which of the following would most likely permit the greatest entry of soil gas in a slab-on-grade house?= | Fireplace foundation Electrical outlets Metal heating ducts under slab diffusion through concrete slab |
| Generally, in a house with elevated radon levels (4pCi/L or above) most of the radon entry results from: | pressure-driven transport of soil gas through entry routes. |
| Which of the following is not a requirement for radon entry into buildings? | central air heating and cooling system. |
| Which of the following is not a potential radon source? | private well water. natural soils and rock near or beneath the building. Bottled drinking water. contaminated building materials. |
| The upward movement of air inside a building is called: | stack effect |
| Any opening within a building that facilitate the upward movement of house air is called: | thermal bypass |
| All licensees shall report apparent non-conformances with either the Radon Industry Licensing Act or the Adopted Rule in writing? | Upon discovery |
| Licensees shall maintain which of the following records for review by the homeowner upon proof of home ownership? | Any building permits required by local codes. Pre-mitigation test results. Post-mitigation test results. |
| The Department may revoke, suspend, place on probation, reprimand or take other disciplinary action for which one of the following? | Failing to respond to a written request sent by certified mail, from the Department within 60 days. |
| A first violation of a provision of the Radon Industry Licensing Act shall be guilty of which of the following penalties? | A business offense. |
| You're performing a radon measurement during a real estate transaction, but closed building conditions aren't being adhered to because windows are open throughout the house. What do you do? | Tell them about Closed Building Conditions and come back the next day to place the testing devices. |
| Weather reports for the day indicate that winds will be in the 30 MPH range that night. You already have a testing device in a house performing a measurement. What do you do? | Postpone test until weather report is less extreme. |
| The home you are about to test has a very low ceiling in the unfinished basement that is not suitable for living space, and never will be, (about 5 feet high). How do you test this home? | Test on the first floor located above the basement. |
| You are placing a testing device. Which of the below scenarios is best demonstrating an adherence to the IEMA Adopted Rule? | 4 feet from fireplace, 20 feet off the ground, 3 feet from windows, 1 foot from exterior wall. |
| You are performing a radon test and ask the homeowner to sign the non-interference agreement about Closed Building Conditions. The homeowner refuses. What do you do? | Document why the person would not sign the agreement and save it for inspection by IEMA. Discuss with the homeowner that if he/she does not sign the agreement, the radon measurement can still be performed. |
| You are performing a radon test at a home over the summer (real estate transaction) and the home is vacant. Which of the below scenarios is accurate? | The house is vacant so turn on the A/C to automatic at 68 - 72 degrees Fahrenheit. Test for radon in the usual manner. |
| Duplicate radon test results were 2.5 pCi/L and 3.5 pCi/L. What is the relative percent difference (RPD)? | 33 percent |
| When conducting a post-mitigation radon test lasting less than 4 days in a house with an active radon reduction system, the radon fan should be in operation for how many hours prior to the beginning of the test? | 24 |
| According to IEMA Measurement Protocols, an initial short-term test interval is: | 2 to 90 days. |
| At a home where you've been testing for a real estate transaction you notice an upstairs window is open. The results in the basement, where you were testing, were 2.5 pCi/L. What would be the Measurement Professional’s recommendation? | Results aren't valid for a real estate transaction, because test conditions did not conform to IEMA Measurement Protocols. A retest is recommended. |
| What house conditions must be maintained for a short term test? | Closed building conditions: A/C or furnace on auto. If occupied temp. 68-72 degrees |
| What is the minimum EPA height requirement for a radon device. | 1' from exterior walls, 20"-6' from floor, 4" from other objects, 4' from heat sources. Out of direct sunlight |
| What measures can be taken to deter tampering? | Printout of continuous radon monitor, motion detectors, specialty tape |
| How long is a short term test? | 48 hours - 90 days |
| you are performing a radon measurement during a real estate transaction and the windows are open. what do you do? | Explain the about the closed building condition and come back the next day to place the testing devices. |
| What unit of measure is used in devices? | Radon decay products are measured in working levels and radon is measured in pCi/L. |
| In terms of Activated Charcoal Devices which statement is not true: | Can be read in the field or in a laboratory. |
| Alpha Track devices | Are designed for long-term measurements. |
| Electret Ion Chambers: | Measure radon through reduction in positive voltage. |
| Charcoal Liquid Scintillation Devices: | Radon in charcoal causes scintillant to release visible light |
| What is not true about Sniffing: | Used to identify relative difference between multiple measurements. |
| For Continuous radon monitors: | Alphas from RDPs are counted. |
| Advantages of continuous radon monitors: | Can indicate when tampering or ventiation occurs. |
Created by:
roverdog