APPRAISAL SUBJECT MATTER ELECTIVES
EXAM NEWEST UPDATE WITH COMPLETE
QUESTIONS AND VERIFIED ANSWERS WITH
RATIONALES // /ALREADY GRADED A+ WITH
100% GUARANTEED SUCCESS
Radon - ANSWER-Radon is a colorless, odorless gas that occurs in nature. It is
radioactive and extremely toxic. It comes from the decay of uranium and radium, which
occur naturally in different types of rocks and soils.
How can radon enter a house? - ANSWER-Cracks in foundations
Cracks in basement floors
Cracks between poured slabs and block walls and footings
Mortar joints and cracks
Exposed soil - such as a dirt floor in a crawl space or basement
Loose fitting pipes
,The hole around a sump pump
How is Radon measured? - ANSWER-Radon is measured in terms of picocuries per
liter of air.
"A unit of measurement for radioactivity. A picocurie is equivalent to the radioactivity
present in one trillionth of one gram of pure radium."
How much Radon are in the average home? - ANSWER-"Based on a national
residential radon survey completed in 1991, the average indoor radon level is about 1.3
picocuries per liter (pCi/L) in the United States. The average outdoor level is about 0.4
pCi/L."\
Nearly one out of every 15 homes in the United States is estimated to have an elevated
radon level (4 pCi/L or more).... Fix the home if the radon level is 4 picocuries per liter
(pCi/L) or higher. Radon levels less than 4 pCi/L still pose a risk and, in many cases,
may be reduced."
There are two basic kinds of testing devices: passive and active. - ANSWER-Passive
devices come in different types and include charcoal canisters, alpha-track detectors,
and electric ion chamber detectors. They can be purchased online or in hardware
stores, home improvement centers, and even in drugstores. They generally cost only
,$20 to $30. Passive devices are set in place for a short time period and then are sent off
to a lab for analysis.
Active devices need to be plugged in. They can be used for short-term tests of two to
seven days or may be left in place for continuous monitoring. They print out reports
which can be analyzed by qualified testers. These cost a little more but generally
produce more reliable results. Some active test devices have features that detect or
deter anyone tampering with the test results.
Which of these is NOT a known carcinogen that can cause cancer? - ANSWER-Carbon
monoxide
Cigarette, smoke, asbestos, and radon are known carcinogens - but carbon monoxide is
not.
The effects of radon exposure occur - ANSWER-five to twenty-five years later
The effects of radon exposure are not immediate, and lung cancer usually will not
appear until five to 25 years after exposure. It has a cumulative effect.
A house should be remediated if the radon level is ___________ picocuries per liter or
higher. - ANSWER-four
, Which of these is not true of radon? - ANSWER-It has a half-life of two years
The other three choices are true, but radon has a half-life of only 4 days.
Which is NOT a characteristic of radon? - ANSWER-it's a mineral
Radon is colorless, odorless and can be found in water - but it is a gas.
Radon tests should be conducted in - ANSWER-the lowest level of the house suitable
for occupancy
All of these measures should help protect against mold in a house, except for -
ANSWER-install smoke detectors
Prevent condensation on cold surfaces, reduce indoor humidity to between 30% and
60%, and get your air ducts cleaned.
The EPA says it is important to dry water damaged areas and items within ______ hours
to prevent mold growth. - ANSWER-24-48
EXAM NEWEST UPDATE WITH COMPLETE
QUESTIONS AND VERIFIED ANSWERS WITH
RATIONALES // /ALREADY GRADED A+ WITH
100% GUARANTEED SUCCESS
Radon - ANSWER-Radon is a colorless, odorless gas that occurs in nature. It is
radioactive and extremely toxic. It comes from the decay of uranium and radium, which
occur naturally in different types of rocks and soils.
How can radon enter a house? - ANSWER-Cracks in foundations
Cracks in basement floors
Cracks between poured slabs and block walls and footings
Mortar joints and cracks
Exposed soil - such as a dirt floor in a crawl space or basement
Loose fitting pipes
,The hole around a sump pump
How is Radon measured? - ANSWER-Radon is measured in terms of picocuries per
liter of air.
"A unit of measurement for radioactivity. A picocurie is equivalent to the radioactivity
present in one trillionth of one gram of pure radium."
How much Radon are in the average home? - ANSWER-"Based on a national
residential radon survey completed in 1991, the average indoor radon level is about 1.3
picocuries per liter (pCi/L) in the United States. The average outdoor level is about 0.4
pCi/L."\
Nearly one out of every 15 homes in the United States is estimated to have an elevated
radon level (4 pCi/L or more).... Fix the home if the radon level is 4 picocuries per liter
(pCi/L) or higher. Radon levels less than 4 pCi/L still pose a risk and, in many cases,
may be reduced."
There are two basic kinds of testing devices: passive and active. - ANSWER-Passive
devices come in different types and include charcoal canisters, alpha-track detectors,
and electric ion chamber detectors. They can be purchased online or in hardware
stores, home improvement centers, and even in drugstores. They generally cost only
,$20 to $30. Passive devices are set in place for a short time period and then are sent off
to a lab for analysis.
Active devices need to be plugged in. They can be used for short-term tests of two to
seven days or may be left in place for continuous monitoring. They print out reports
which can be analyzed by qualified testers. These cost a little more but generally
produce more reliable results. Some active test devices have features that detect or
deter anyone tampering with the test results.
Which of these is NOT a known carcinogen that can cause cancer? - ANSWER-Carbon
monoxide
Cigarette, smoke, asbestos, and radon are known carcinogens - but carbon monoxide is
not.
The effects of radon exposure occur - ANSWER-five to twenty-five years later
The effects of radon exposure are not immediate, and lung cancer usually will not
appear until five to 25 years after exposure. It has a cumulative effect.
A house should be remediated if the radon level is ___________ picocuries per liter or
higher. - ANSWER-four
, Which of these is not true of radon? - ANSWER-It has a half-life of two years
The other three choices are true, but radon has a half-life of only 4 days.
Which is NOT a characteristic of radon? - ANSWER-it's a mineral
Radon is colorless, odorless and can be found in water - but it is a gas.
Radon tests should be conducted in - ANSWER-the lowest level of the house suitable
for occupancy
All of these measures should help protect against mold in a house, except for -
ANSWER-install smoke detectors
Prevent condensation on cold surfaces, reduce indoor humidity to between 30% and
60%, and get your air ducts cleaned.
The EPA says it is important to dry water damaged areas and items within ______ hours
to prevent mold growth. - ANSWER-24-48
