NJ Radon Measurement Technician Exam UPDATED ACTUAL Questions and CORRECT Answers
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NJ Radon Measurement Technician
Institution
NJ Radon Measurement Technician
NJ Radon Measurement Technician Exam
UPDATED ACTUAL Questions and
CORRECT Answers
What does it mean for a radon decay product to be "plated out"? - CORRECT ANSWER- It
has attached to a non-breathable object
If a radon decay product attaches to a solid object, such as a wall, it... - CORRECT ...
NJ Radon Measurement Technician Exam
UPDATED ACTUAL Questions and
CORRECT Answers
What does it mean for a radon decay product to be "plated out"? - CORRECT ANSWER- It
has attached to a non-breathable object
If a radon decay product attaches to a solid object, such as a wall, it... - CORRECT
ANSWER- ...can no longer be inhaled.
What is a half-life? - CORRECT ANSWER- The time required for half of the atoms of a
radioactive element to decay.
Which type of radiation is responsible for the most cellular damage associated with radon and
radon decay products? - CORRECT ANSWER- Alpha
The negatively charged subatomic particle that orbits the nucleus is called a(n) - CORRECT
ANSWER- electron
Radon decay products that are not attached to airborne particles are much more likely to... -
CORRECT ANSWER- deposit radiation into lung tissue if inhaled.
The number of protons plus the number of neutrons in a specific atom is called - CORRECT
ANSWER- Mass number
The number of protons in an atom's nucleus is the same as the atom's... - CORRECT
ANSWER- Atomic number
The commonly assumed equilibrium ratio of radon decay products is: - CORRECT
ANSWER- 0.4
All atoms of the same element must have the same... - CORRECT ANSWER- Atomic
number
,The number of ______________ in an atom determines which element it is. - CORRECT
ANSWER- Protons
_________________ causes a neutral atom to become an ion. - CORRECT ANSWER- The
gain or loss of electrons
________________ is a unit used to measure radon concentration. - CORRECT ANSWER-
Picocurie per liter (pCi/L)
When ___________ decays, it produces Radon-222 - CORRECT ANSWER- Radium-226
For an atom to be neutrally charged... - CORRECT ANSWER- it's number of protons and
electrons must be equal.
Different atoms of the same element can have differing numbers of neutrons. What are these
different kinds of the same element called? - CORRECT ANSWER- isotopes
What is the half-life of radon-222? - CORRECT ANSWER- 3.8 days
Stack effect is caused by... - CORRECT ANSWER- Temperature differentials
3 factors that effect radon's ability to move through the soil: - CORRECT ANSWER- 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. -
CORRECT ANSWER- 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. - CORRECT ANSWER- 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 - CORRECT ANSWER- Evaporation
The area below the neutral pressure plane in a home... - CORRECT ANSWER- Draws air
into the home
The 3 major factors of radon entry into a home are: - CORRECT ANSWER- - Radon source
strength
- Transport of radon
- ventilation rate
Radon plays what role in the average American's annual radiation exposure? - CORRECT
ANSWER- 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. - CORRECT ANSWER- 62
The EPA estimates that approximately ____________ lung cancer deaths per year are related
to inhalation of radon and radon decay products. - CORRECT ANSWER- 21,000
____________ and _____________ are the two radon decay products that contribute the
largest dose of radiation associated with RDPs. - CORRECT ANSWER- 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. - CORRECT ANSWER- Creation of additional nuclei IS NOT caused by ionizing
radiation
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