Module 1A Quiz

Question 1

Which of the following provides the basis for determining whether an imaging procedure or practice is justified?

a.) ALARA program
b.) BERT method
c.) efficacy
d.) TRACE program

Answer 1

c.) efficacy

Question 2

Radiations that are less than 10 eV are considered to be nonionizing because they:

a.) do not have suffiecient kinetic energy to eject electrons from atoms
b.) do not have sufficient potential energy to eject electrons from atoms
c.) have sufficient kinetic energy to eject electrons from atoms
d.) have sufficient potential energy to eject electrons from atoms

Answer 2

a.) do not have sufficient kinetic energy to eject electrons from atoms

Question 3

In the electromagnetic spectrum, higher frequencies are associated with:

a.) shorter wavelengths and lower energies
b.) shorter wavelengths and higher energies
c.) longer wavelengths and lower energies
d.) longer wavelengths and higher energies

Answer 3

b.) shorter wavelengths and higher energies

Question 4

Which of the following is the intention behind the ALARA concept?

a.) to keep radiation exposure and consequetn dose the lowest possible level
b.) to keep radiation exposure and consequent dose at the highest possible level
c.) to keep radiation exposure and consequent dose at an average level
d.) to avoid the use of ionizing radiation in radiologic practice

Answer 4

a.) to keep radiation exposure and consequent dose at the lowest possible level

Question 5

___________ is kinetic energy that passes from one location to another.

a.) electromagnetic energy
b.) radiation
c.) ionization
d.) photoelectric energy

Answer 5

b.) radiation

Question 6

Which of the following sources of radiation is manmade?
1.) atmospheric fallout from nuclear weapons testing
2.) cosmic radiation from the sun and beyoond the solar system
3.) nuclear power plant accidents as a consequence of natural disasters

a.) 1 and 3 only
b.) 1 and 2 only
c.) 2 and 3 only
d.) 1, 2 and 3

Answer 6

a.) 1 and 3 only

Question 7

Name one example of how radiation was commonly used before it was discovered to be harmful to humans.

Answer 7

In shoe stores to fit shoes, mostly used for children.

Question 8

Z refers to the number of:

a.) electrons in the nucleus of an atom
b.) neutrons in the nucleus of an atom
c.) electrons in the outer shell of an atom
d.) protons in the nucleus of an atom

Answer 8

d.) protons in the nucleus of an atom

Question 9

_________ is measured in Hz.

a.) wavelength
b.) frequency
c.) Wr
d.) energy

Answer 9

b.) frequency

Question 10

Cosmic radiation occurs in which two forms?

a.) natural background and artificial
b.) artificial and galactic
c.) solar and galactic
d.) solar and manmade

Answer 10

c.) solar and galactic

Question 11

Radon is a form of ___________ radiation.

a.) cosmic
b.) manmade
c.) terrestrial
d.) artificial

Answer 11

c.) terrestrial

Question 12

The actual radiation exposure experienced by ____________ sometimes exceeds that of radiation workers.

a.) hazardous material removers
b.) EPA workers
c.) coal miners
d.) commercial flight crews

Answer 12

d.) commercial flight crews

Question 13

The cardinal principles of radiation protection include which of the following?
1.) time
2.) distance
3.) shielding

a.) 1 only
b.) 1, 2 and 3
c.) 2 only
d.) 3 only

Answer 13

b.) 1, 2 and 3

Question 14

The campaign that seeks to educate medical providers and technologists on lowering CT doses for pediatrics is called:

a.) ALARA
b.) image gently
c.) the cardinal principles
d.) image wisely

Answer 14

b.) image gently

Question 15

Nuclear power plant accidents and atmospheric fallout from weapons testing are types of ___________ radiation.

a.) terrestrial
b.) particulate
c.) natural
d.) manmade

Answer 15

d.) manmade

Question 16

Xrays are a form of which of the following kinds of radiation?

a.) internal
b.) enviromental
c.) ionizing
d.) nonionizing

Answer 16

c.) ionizing

Question 17

Xrays:
1.) can have varying degrees of penetration in normal biologic tissue
2.) can be focused by a lens
3.) are invisible

a.) 1 and 2
b.) 1 and 3
c.) 2 and 3
d.) 1, 2 and 3

Answer 17

b.) 1 and 3

Question 18

Removal of an electron from an atom is called what?

a.) radiation
b.) efficacy
c.) ionization
d.) biologic effects

Answer 18

c.) ionization

Question 19

Alpha, beta, protons and neutrons are considered to be what type of radiation?

a.) terrestrial
b.) manmade
c.) cosmic
d.) particulate

Answer 19

d.) particulate

Question 20

Ionizing radiation usually occur above __________ kev.

a.) 100
b.) 50
c.) 10
d.) 20

Answer 20

c.) 10

Question 21

Which of the following are forms of electromagnetic radiation?
1.) microwaves
2.) visible light
3.) xrays
4.) gamma rays
5.) ultraviolet radiation

a.) 3, 4 and 5 only
b.) 1, 2, 3, 4 and 5
c.) 1, 2 and 3 only
d.) 2, 3 and 4 only

Answer 21

b.) 1, 2, 3, 4 and 5

Question 22

Infrared, microwaves and radiowaves are all forms of __________ radiation.

a.) particulate
b.) ionizing
c.) natural
d.) nonionizing

Answer 22

d.) nonionizing

Question 23

Which regulatory agency is responsible for the manufacturing and design of xray equipment?

a.) FDA
b.) OSHA
c.) NRC
d.) EPA

Answer 23

a.) FDA

Question 24

The _________ method should be used to inform patients of the minimal risk of exposure during their exam.

a.) ALARA
b.) BERT
c.) ORP
d.) cardinal principles

Answer 24

b.) BERT