Radon Review Quiz 3

Which of the following measurement professionals or organizations are not required to pass a performance test? Select one: a. A measurement professional who is placing devices analyzed by an independent certified laboratory b. A certified laboratory that has been in existence for over 10 years c. A certified laboratory that has an individual who is also certified as a radon measurement service provider d. An individual using a continuous radon monitor and is fully trained to operate the equipment to obtain a result

a. A measurement professional who is placing devices analyzed by an independent certified laboratory

According to the ANSI/AARST Protocol for measurements in homes, which of the following devices should NOT be deployed in areas of high humidity? Select one: a. Activated Charcoal b. Electret Ion Chambers c. Continuous Radon Monitors d. Continuous radon monitors

a. Activated Charcoal

You arrive at a house to conduct a short-term radon test and find that the occupant has not closed doors and windows as previously instructed. Which of the following is an acceptable approach? Select one: a. Close doors and windows and deploy an activated charcoal device for 4 days b. Close door and windows, deploy a CRM and delete the first four hours of data collected. c. Close doors and windows and deploy device for 48 hours and add a paragraph in report that doors and windows were closed at outset of test. d. Deploy activated charcoal device for 30 days allowing the occupant to continue to operate house under non-closed building conditions

a. Close doors and windows and deploy an activated charcoal device for 4 days

Which of the following statements is correct? Select one: a. Spiked samples measure accuracy, while duplicates measure precision b. Blanks measure accuracy, while duplicates measure precision c. Spiked samples measure precision, while blanks measure accuracy d. Blanks measure precision, while duplicates measure accuracy

a. Spiked samples measure accuracy, while duplicates measure precision

According to the ANSI/AARST Protocol for measurements in homes, an attic fan that removes hot air out of an attic can be operated during a Time Sensitive Testing Approach. Select one: a. True b. False

a. True

According to the ANSI/AARST Protocol for measurements in homes, equipment that supplies fresh outdoor air to the home are to be shut off. Select one: a. True b. False

a. True

According to the ANSI/AARST Protocol for measurements in homes, if air to air heat exchangers are not regularly used or maintained, they are to be shut off during short-term test. Select one: a. True b. False

a. True

According to the ANSI/AARST Protocol for measurements in homes, individuals who are deploying passive detectors such as activated charcoal from a certified lab are required to deploy duplicates and blanks as part of a Quality Control Plan. Select one: a. True b. False

a. True

How soon after a soil gas mitigation system is installed can a post-mitigation test be started? Select one: a. 12 hours b. 24 hours c. 1 week d. Immediately

b. 24 hours

Which of the following discharge points of an active soil depressurization system is appropriate? Select one: a. At least 10 feet above the ground and pointed downward b. At least 10 feet above the ground and above the eave c. At least 6 feet above the ground pointed away from the house d. Through the highest roof extending a minimum of 24 inches above the roof

b. At least 10 feet above the ground and above the eave

Which of the following is correct about performance tests? Select one: a. The average of three devices must be within 20 percent of the radon chamber value b. Each result and the average of all devices submitted must be within 25 percent of the chamber value c. All devices must be submitted to a performance test at the rate of 3/100 d. Performance tests are no longer required

b. Each result and the average of all devices submitted must be within 25 percent of the chamber value

According to the ANSI/AARST Protocol for measurements in homes, which of the following should NOT be included in report to the client for a test conducted with a continuous monitor? Select one: a. Hourly measurements b. Excluded data at the beginning of the test to allow for device or home to come to equilibrium c. Device type such as model number d. Location within building where test was conducted

b. Excluded data at the beginning of the test to allow for device or home to come to equilibrium

According to the ANSI/AARST Protocol for measurements in homes, if a noninterference agreement has not been signed, the test is not a valid short-term test. Select one: a. True b. False

b. False

According to the ANSI/AARST Protocol for measurements in homes, if you are an AARST member or certified by the National Radon Safety Board you are exempted from needing a QA/QC plan. Select one: a. True b. False

b. False

According to the ANSI/AARST Protocol for measurements in homes, when conducting a Time Sensitive Test, a window style air conditioner is to be shut off and covered. Select one: a. True b. False

b. False

How close to one another must two radon detectors be placed if they are to be considered collocated test devices for real estate testing? Select one: a. 12 inches b. No more than 8 inches apart c. Within the same room d. 36 inches

b. No more than 8 inches apart

Duplicate measurements are made to provide an estimate of which type of error? Select one: a. Bias b. Precision c. Reliability d. Accuracy

b. Precision

Which of the materials are appropriate for vent piping for an active soil depressurization style radon reduction system? Select one: a. thin wall PVC b. Schedule 40 PVC c. 10 gauge sheet metal d. Insulated, flex duct

b. Schedule 40 PVC

According to the ANSI/AARST Protocol for measurements in homes, when testing homes with large areas like entertainment areas, one should: Select one: a. Test in every room on the lower level b. Select multiple test locations at a rate of 1 test location per every 2,000 square feet c. Deploy a test device in the discharge of a forced air heating or cooling system to obtain an overall average for the area d. There are no special requirements for testing larger areas provided the building is used as a residence

b. Select multiple test locations at a rate of 1 test location per every 2,000 square feet

Which of the following statements is correct regarding post-mitigation measurements in residential structures? Select one: a. Post-mitigation measurements are not to be disclosed by the seller of a property to the buyer b. The home should be tested no sooner than 24 hours nor later than 30 days after the system has been installed c. The home does not need to be tested again after post-mitigation tests verify reductions to less than 4.0 pCi/L and the system performance indicator shows good mechanical operation d. The home needs to be retested once every 3 years thereafter

b. The home should be tested no sooner than 24 hours nor later than 30 days after the system has been installed

You arrive at a home to perform a radon measurement with an electret ion chamber (EIC). Although you had informed the resident of the closed building conditions required for this test, you notice the windows on the first floor and the basement are open. According to Protocols, an appropriate action is to: Select one: a. leave the windows open and lengthen the test to 4 - 7 days b. close all windows, explain closed building conditions again, and return to place the test device in 12 - 24 hours c. close the basement windows only and run the test for 2 days d. close all the windows and run the test for 2 days, noting the conditions on your report

b. close all windows, explain closed building conditions again, and return to place the test device in 12 - 24 hours

When deploying side by side detectors, the maximum separation between devices should be: Select one: a. 1 inch b. 4 inches c. 8 inches d. 12 inches

c. 8 inches

When establishing closed house conditions, the occupant should: Select one: a. Be able to operate a whole house fan b. Not use a fireplace that is used for heating c. Be able to operate a clothes dryer d. Not use a range hood or bathroom fan

c. Be able to operate a clothes dryer

According to the ANSI/AARST Protocol for measurements in new home construction, when testing a newly constructed home, which of the following conditions would prevent you from initiating a short-term test? Select one: a. Furniture has not been moved in b. Kitchen appliances have not been delivered c. Exterior door hardware has not been installed d. Floor coverings have not been installed

c. Exterior door hardware has not been installed

Which of the following is an appropriate location for an active soil depressurization system fan? Select one: a. Basement b. Garage with living space above it c. Outdoors d. In the crawlspace under the living space

c. Outdoors

According to the ANSI/AARST Protocol for measurements in homes, when a post mitigation test is conducted in a home having a livable basement and an attached garage that has been retrofitted into a living space, how many test locations are suggested? Select one: a. One in the retrofitted garage area b. One in the livable basement c. Two - one for the basement, and one for the slab-on-grade retrofitted garage area d. None. Mitigation contractors who are not also measurement certified are not allowed to conduct post-mitigation tests

c. Two - one for the basement, and one for the slab-on-grade retrofitted garage area

Precision can best be determined by: Select one: a. a calibration measurement b. sequential measurements c. duplicate measurements d. a single spiked measurement

c. duplicate measurements

According to the ANSI/AARST Protocol for measurements in homes, what is the minimum period that records regarding a radon measurement should be maintained? Select one: a. 10 years b. 20 years c. Life of your company d. 6 years

d. 6 years

Per the ANSI/AARST MAH 2019, how long should measurement records and reports be retained for worker exposure purposes? Select one: a. 10 years b. 15 years c. 12 months d. 6 years

d. 6 years

According to the ANSI/AARST Protocol for measurements in homes, when deploying a test device that is designed to be suspended by a string or a pre-attached tape it should be: Select one: a. Hung from an end table or sofa table no more than 12 inches from the floor b. Hung from the ceiling so it is a minimum of 6 inches (15 cm) from the ceiling c. Attached to a ceiling fan d. Attached to the ceiling or a beam so it is at least 12 inches from the ceiling but no higher than 8 feet from the floor

d. Attached to the ceiling or a beam so it is at least 12 inches from the ceiling but no higher than 8 feet from the floor

Which of the following would be a proper choice for locating a radon test device? Select one: a. Utility room having a sump b. In a crawlspace to get highest potential c. In a master bedroom on the third floor d. In a guest room in the lowest level of home

d. In a guest room in the lowest level of home

Duplicate measurements are defined as two measurements made: Select one: a. one after the other and side by side b. one after the other in different rooms c. at the same time in different rooms d. at the same time and side by side

d. at the same time and side by side

A routine instrument performance check of either a working level monitor (WLM) or a continuous radon monitor (CRM) should be performed: Select one: a. once every year b. once every 6 months c. once a month d. prior to each measurement

d. prior to each measurement

Which of the following is not required to be recorded when performing a radon test? Select one: a. ID or serial number of the devices deployed b. Location device deployed c. Time and date device deployed and retrieved d. Maintenance of proper building condition such as closed house conditions met and maintained e. Unusual weather conditions during test f. Any indications of disturbance g. If instructions were provided to occupant regarding building conditions to be maintained and non-disturbance of devices h. Building/house address i. Name and certification ID of individual deploying and retrieving j. If dogs are present, what their names are and if they bite k. Unique aspects of the building such as under-slab air return ducts

j. If dogs are present, what their names are and if they bite