Radon Measurement Certification test UPDATED ACTUAL Questions and CORRECT Answers
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Course
Radon Measurement Certification
Institution
Radon Measurement Certification
Radon Measurement Certification test
UPDATED ACTUAL Questions and
CORRECT Answers
What is this test? - CORRECT ANSWER- Absolute bullshit filled with trick questions, and
cheap verbiage meant to trick and deter takers
The four Soil Suction Mitigation techniques - CORRECT ANSWER- Subslab sucti...
Radon Measurement Certification test
UPDATED ACTUAL Questions and
CORRECT Answers
What is this test? - CORRECT ANSWER- Absolute bullshit filled with trick questions, and
cheap verbiage meant to trick and deter takers
The four Soil Suction Mitigation techniques - CORRECT ANSWER- Subslab suction,
drain-tile suction,
sump-hole suction,
or block-wall suction
What is an Alpha Particle? - CORRECT ANSWER- Two neutrons and two protons bound as
a single particle emitted from the nucleus of certain radioactive isotopes in the process of
decay.
Closed House Procedures - CORRECT ANSWER- During any short-term test, closed-house
conditions should be maintained as much as possible while the test is in progress. In tests
lasting fewer than four days, closed-house conditions should be maintained for at least twelve
hours before starting the test, as well as for the duration of the test. While closed-house
conditions are not required before starting tests lasting between four and ninety days, they
should be maintained as much as possible.
Curie - CORRECT ANSWER- a standard measurement for radioactivity, specifically, the rate
of decay for a gram of radium at 37 billion decays per second; a unit of radioactivity equal to
3.7 x 1010 disintegrations per second.
Equilibrium Ration - CORRECT ANSWER- At complete equilibrium (i.e., at an equilibrium
ratio of 1), 1 WL of RDPs would be present at the radon concentration of 100 pCi/L. The
ratio is never 1 in a house; due to ventilation and plate-out, the RDPs never reach equilibrium
in a residential environment. A commonly assumed equilibrium ratio is 0.5 (i.e., the decay
products are halfway toward equilibrium), in which case 1 WL would correspond to 200
pCi/L. However, equilibrium ratios vary with time and location, and ratios of 0.3 to 0.7 are
commonly observed.
, Picocurie (pCi): - CORRECT ANSWER- one pCi is one-trillionth of a curie, 0.037
disintegrations per second, or 2.22 disintegrations per minute.
Picocurie per liter (pCi/L): - CORRECT ANSWER- a unit of radioactivity corresponding to
an average of one decay every 27 seconds in a volume of 1 liter, or 0.037 decays per second
per liter of air or water. 1 pCi/L = 37 becquerels per cubic meter (Bq/m3).
Quality Assurance (QA) - CORRECT ANSWER- a complete program designed to produce
results that are valid, scientifically defensible, and of known precision, bias, and accuracy;
includes planning, documentation, and quality-control activities.
Quality control: - CORRECT ANSWER- the system of activities to ensure a quality product,
including measurements made to ensure and monitor data quality; includes: calibrations;
duplicate, blank and spiked measurements; inter-laboratory comparisons; and audits.
Standard operating procedure (SOP) - CORRECT ANSWER- a written document which
details an operation, analysis or action whose mechanisms are prescribed thoroughly and
which is commonly accepted as the method for performing certain routine or repetitive tasks.
Working level (WL) - CORRECT ANSWER- Any combination of short-lived radon decay
products in 1 liter of air that will result in the ultimate emission of 1.3 x 105 MeV of potential
alpha energy. This number was chosen because it is approximately the alpha energy released
from the decay products in equilibrium with 100 pCi of Rn-222. Exposures are measured in
working level months (WLM).
sub-membrane depressurization - CORRECT ANSWER- An active radon mitigation system
that creates low air pressure under a vapor retarder. A common example is when a vapor
retarder (polyethylene plastic sheet) is installed over the exposed dirt floor of a crawlspace.
The radon fan draws air from below the vapor retarder and sends it outside.
active soil-depressurization system - CORRECT ANSWER- one or more of the following
types of radon mitigation system types involving mechanically driven soil depressurization:
sub-slab depressurization; sump (pit) depressurization; drain-tile depressurization; sub-
membrane depressurization; hollow-block wall depressurization; and crawlspace
depressurization.
What decides what element an atom is - CORRECT ANSWER- The number of protons
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