NJ RADON MEASUREMENT TECHNICIAN
EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+
What is the half-life of radon-222? - ANSWERS-3.8 days
Stack effect is caused by... - ANSWERS-Temperature
differentials
3 factors that effect radon's ability to move through the soil:
- ANSWERS-1. Size of mineral grain in the soil
2. Dryness of the soil
3. Permeability of the soil
(T/F) There is a strong correlation between low ventilation
rates and high radon levels. - ANSWERS-False: there is not a
strong correlation
,(T/F) Radon entry, and therefore indoor radon
concentrations, do not vary over relatively short periods of
time. - ANSWERS-FALSE: they do vary over relatively short
periods of time.
All of the following are driving forces that can bring radon
into a home except:
- Diffusion
- Evaporation
- Emanation
- Well water - ANSWERS-Evaporation
The area below the neutral pressure plane in a home... -
ANSWERS-Draws air into the home
The 3 major factors of radon entry into a home are: -
ANSWERS-- Radon source strength
- Transport of radon
- ventilation rate
,Radon plays what role in the average American's annual
radiation exposure? - ANSWERS-It is the 2nd greatest
contributor.
The EPA estimates that the risk of lung cancer death for a
current smoker with a constant radon exposure of 4 pCi/L is
_____________ in 1,000. - ANSWERS-62
The EPA estimates that approximately ____________ lung
cancer deaths per year are related to inhalation of radon
and radon decay products. - ANSWERS-21,000
____________ and _____________ are the two radon decay
products that contribute the largest dose of radiation
associated with RDPs. - ANSWERS-Polonium-218 and
polonium-214
Which of the following effects is NOT caused by ionizing
radiation?
- Breaking DNA strands
- Unbonding base pairs
- Creation of additional nuclei
, - Interacting with molecules outside the cell, which can
cause a wide range of cellular damage. - ANSWERS-Creation
of additional nuclei IS NOT caused by ionizing radiation
The EPAs indoor air recommended action level is
____________ - ANSWERS-4 pCi/L
A room has an equilibrium ratio of 0.5 and a radon
concentration of 6 pCi/L. What is its' Working Level? -
ANSWERS-0.03
WL = (ER x pCi/L) / 100
A room has an equilibrium ratio of 0.6 and a radon
concentration of 15 pCi/L. What is the room's Working
Level? - ANSWERS-0.09
WL = (ER x pCi/L) / 100
A room has an Working Level of 0.52 and a radon
concentration level of 110 pCI/L. What is the room's
equilibrium ratio? - ANSWERS-0.47
EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+
What is the half-life of radon-222? - ANSWERS-3.8 days
Stack effect is caused by... - ANSWERS-Temperature
differentials
3 factors that effect radon's ability to move through the soil:
- ANSWERS-1. Size of mineral grain in the soil
2. Dryness of the soil
3. Permeability of the soil
(T/F) There is a strong correlation between low ventilation
rates and high radon levels. - ANSWERS-False: there is not a
strong correlation
,(T/F) Radon entry, and therefore indoor radon
concentrations, do not vary over relatively short periods of
time. - ANSWERS-FALSE: they do vary over relatively short
periods of time.
All of the following are driving forces that can bring radon
into a home except:
- Diffusion
- Evaporation
- Emanation
- Well water - ANSWERS-Evaporation
The area below the neutral pressure plane in a home... -
ANSWERS-Draws air into the home
The 3 major factors of radon entry into a home are: -
ANSWERS-- Radon source strength
- Transport of radon
- ventilation rate
,Radon plays what role in the average American's annual
radiation exposure? - ANSWERS-It is the 2nd greatest
contributor.
The EPA estimates that the risk of lung cancer death for a
current smoker with a constant radon exposure of 4 pCi/L is
_____________ in 1,000. - ANSWERS-62
The EPA estimates that approximately ____________ lung
cancer deaths per year are related to inhalation of radon
and radon decay products. - ANSWERS-21,000
____________ and _____________ are the two radon decay
products that contribute the largest dose of radiation
associated with RDPs. - ANSWERS-Polonium-218 and
polonium-214
Which of the following effects is NOT caused by ionizing
radiation?
- Breaking DNA strands
- Unbonding base pairs
- Creation of additional nuclei
, - Interacting with molecules outside the cell, which can
cause a wide range of cellular damage. - ANSWERS-Creation
of additional nuclei IS NOT caused by ionizing radiation
The EPAs indoor air recommended action level is
____________ - ANSWERS-4 pCi/L
A room has an equilibrium ratio of 0.5 and a radon
concentration of 6 pCi/L. What is its' Working Level? -
ANSWERS-0.03
WL = (ER x pCi/L) / 100
A room has an equilibrium ratio of 0.6 and a radon
concentration of 15 pCi/L. What is the room's Working
Level? - ANSWERS-0.09
WL = (ER x pCi/L) / 100
A room has an Working Level of 0.52 and a radon
concentration level of 110 pCI/L. What is the room's
equilibrium ratio? - ANSWERS-0.47
