RADON REVIEW QUIZ 6 (MITIGATION)
EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+
According to the ANSI/AARST 2017 SGM, proposals are to
include estimated operating costs, installation costs,
warranties, and pertinent contact information about the
installer.
Select one:
a. Totally TRUE
b. All TRUE with exception of operating cost estimate
c. All TRUE except warranties as one would not know what
equipment specifically will be installed
d. FALSE. ANSI/AARST does not specify content of proposals,
only post-mitigation documentation - ANSWERS-a. Totally
TRUE
,According to the post mitigation requirements of the Radon
Mitigation Standards, which is NOT correct?
Select one:
a. Contractor shall insure that a short-term measurement is
made after mitigation system installation
b. Contractor shall recommend that client obtain an
independent post-mitigation radon measurement
c. Contractor shall recommend that retesting occur at least
every 12 months
d. A short-term post-mitigation test shall be made between
24 hours and 30 days after installation and operation of the
system - ANSWERS-c. Contractor shall recommend that
retesting occur at least every 12 months
ANSI/AARST Soil Gas Mitigation standards are applicable in:
Select one:
a. Residential and office buildings up to three stories high
b. Residential buildings up to three stories high
c. Residential, office, and school buildings up to three stories
high
, d. All occupied buildings up to three stories high -
ANSWERS-b. Residential buildings up to three stories high
During radon sniff testing of a sump pit, the estimated
radon concentration was 1000 pCi/L. A scintillation cell grab
sample, taken simultaneously (counted 4 hours later)
yielded 300 pCi/L. Both measurements were properly
conducted. Which of the following is the most likely cause
of the apparent discrepancy?
Select one:
a. A large percentage of the sniff test counts resulted from
thoron (Rn-220).
b. Radon progeny underwent natural decay.
c. Radon decay progeny in growth occurred in the grab
sample.
d. The equilibrium ratios in the two samples are different. -
ANSWERS-a. A large percentage of the sniff test counts
resulted from thoron (Rn-220).
During vacuum cleaner diagnostics to simulate active soil
(ASD) system performance, the following data are obtained:
Velocity of air: 2100 fpm; Inside diameter of pipe where
EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+
According to the ANSI/AARST 2017 SGM, proposals are to
include estimated operating costs, installation costs,
warranties, and pertinent contact information about the
installer.
Select one:
a. Totally TRUE
b. All TRUE with exception of operating cost estimate
c. All TRUE except warranties as one would not know what
equipment specifically will be installed
d. FALSE. ANSI/AARST does not specify content of proposals,
only post-mitigation documentation - ANSWERS-a. Totally
TRUE
,According to the post mitigation requirements of the Radon
Mitigation Standards, which is NOT correct?
Select one:
a. Contractor shall insure that a short-term measurement is
made after mitigation system installation
b. Contractor shall recommend that client obtain an
independent post-mitigation radon measurement
c. Contractor shall recommend that retesting occur at least
every 12 months
d. A short-term post-mitigation test shall be made between
24 hours and 30 days after installation and operation of the
system - ANSWERS-c. Contractor shall recommend that
retesting occur at least every 12 months
ANSI/AARST Soil Gas Mitigation standards are applicable in:
Select one:
a. Residential and office buildings up to three stories high
b. Residential buildings up to three stories high
c. Residential, office, and school buildings up to three stories
high
, d. All occupied buildings up to three stories high -
ANSWERS-b. Residential buildings up to three stories high
During radon sniff testing of a sump pit, the estimated
radon concentration was 1000 pCi/L. A scintillation cell grab
sample, taken simultaneously (counted 4 hours later)
yielded 300 pCi/L. Both measurements were properly
conducted. Which of the following is the most likely cause
of the apparent discrepancy?
Select one:
a. A large percentage of the sniff test counts resulted from
thoron (Rn-220).
b. Radon progeny underwent natural decay.
c. Radon decay progeny in growth occurred in the grab
sample.
d. The equilibrium ratios in the two samples are different. -
ANSWERS-a. A large percentage of the sniff test counts
resulted from thoron (Rn-220).
During vacuum cleaner diagnostics to simulate active soil
(ASD) system performance, the following data are obtained:
Velocity of air: 2100 fpm; Inside diameter of pipe where
