Question 1

The range of variation around the mean is called&#10;A)variance.&#10;B)standard deviation.&#10;C)percentile.&#10;D)range.

Accepted Answer

The range of variation around the mean is called standard deviation. Variance is a closely related concept but measures the average squared deviation from the mean. Percentile is a measure of relative standing and does not pertain to variation around the mean. Range is a measure of the difference between the maximum and minimum values, but does not indicate the variability around the mean.

Question 2

Which federal agency is responsible for establishing standards for safety and for monitoring the workplace environment?&#10;A)NRC&#10;B)OSHA&#10;C)FDA&#10;D)NCRP

Accepted Answer

OSHA (Occupational Safety and Health Administration) is the federal agency responsible for establishing workplace safety standards and monitoring the workplace environment to ensure compliance with these standards. The NRC (Nuclear Regulatory Commission) is responsible for regulating the commercial nuclear industry, the FDA (Food and Drug Administration) is responsible for ensuring the safety of food and drugs, and the NCRP (National Council on Radiation Protection and Measurements) is a nonprofit organization that provides guidance on radiation protection.

Question 3

Members of the general public who may be exposed to frequent or continuous exposure from artificial sources other than medical exposure have a recommended maximum effective dose equivalent of _____ rem/year.

A)0.1
B)0.5
C)1.0
D)5.0

A

Accepted Answer

For members of the general population who may be exposed to frequent or continuous exposure from artificial sources other than medical irradiation (this includes radiography students younger than the age of 18), the NCRP recommends a maximum effective dose equivalent limit of 0.1 rem (1 mSv) per year.

Question 4

The minimum thickness of lead aprons worn by occupational workers during diagnostic procedures is ____ mm of lead equivalence.&#10;A)0.25&#10;B)0.5&#10;C)1.0&#10;D)1.5

Accepted Answer

The answer of The minimum thickness of lead aprons worn...

Question 5

Any activity that costs a facility either money or its reputation is known as&#10;A)risk management.&#10;B)risk assessment.&#10;C)risk analysis.&#10;D)loss potential.

Accepted Answer

Loss potential refers to any activity that could result in financial or reputational losses for a facility. Risk management, risk assessment, and risk analysis are all related terms but refer to the process of identifying and addressing potential risks or hazards.

Question 6

The FDA uses how many classifications of medical devices?&#10;A)One&#10;B)Two&#10;C)Three&#10;D)Four

Accepted Answer

The FDA uses three classifications for medical devices based on the level of risk involved: Class I (low risk), Class II (moderate risk), and Class III (high risk). The classification determines the level of regulatory control required for the device to be marketed and sold in the United States.

Question 7

The number of items actually measured from a population is called a&#10;A)sample.&#10;B)data set.&#10;C)frequency.&#10;D)range.

Accepted Answer

A sample refers to the actual items or individuals that have been measured or observed from a larger population. A data set is a collection of measurements or observations whereas a frequency refers to the number of times a particular value occurs within the data set. A range is a measure of the spread or variability of the data set.

Question 8

The maximum dose to the fetus of an occupational worker for the entire gestation period is _____ rem.&#10;A)0.05&#10;B)0.1&#10;C)0.5&#10;D)5.0

Accepted Answer

The embryonic/fetal dose of occupational workers should not exceed 0.0025 millirem (0.025 mSv) per day, 0.05 rem (0.5 mSv) in any 1 month of the 9-month gestation period and 0.5 rem (5 mSv) for the entire gestation period.

Question 9

What is the average amount of background radiation per year in the United States?&#10;A)100 mrem&#10;B)250 mrem&#10;C)360 mrem&#10;D)480 mrem

Accepted Answer

The average amount of background radiation per year in the United States is approximately 360 millirem (mrem). This includes exposure from natural sources such as cosmic radiation, radon gas, and radioactive elements in the soil, as well as from artificial sources such as medical procedures and nuclear power plants. It's important to note that this level of exposure is generally considered safe and poses little risk to human health.

Question 10

Which of the following is a pictorial representation of a frequency distribution?&#10;A)Pareto chart&#10;B)Fishbone chart&#10;C)Histogram&#10;D)Scatter plot

Accepted Answer

A histogram is a graph that displays data by grouping them into continuous intervals called classes. It is commonly used to represent frequency distributions. Option A (Pareto chart) is a graph that represents the frequency or size of problems in descending order of importance. Option B (Fishbone chart) is a cause-and-effect diagram that helps identify the causes of a particular problem. Option D (Scatter plot) is a graph that shows the relationship between two variables.

Deck 2: Quality Management Tools and Procedures