Mosby's Radiography Review Chapter 4:
Image production UPDATED ACTUAL
Exam Questions and CORRECT Answers
In many cases, digital fluoroscopy eliminates which of the following:
A. The need for a radiographer
B. Post-procedure "overhead" images
C. Image acquisition
D. Accurate positioning - CORRECT ANSWER - B. Post-procedure "overhead" images
What is the smallest particle of an element that retains the characteristic of the element:
A. Mole
B. Atom
C. Molecule
D. Quark - CORRECT ANSWER - B. Atom
In digital fluoroscopy, the image must be turned into digital form by what device:
A. Digital-to-analog converter
B. Flux capacitor
C. Analog-to-digital converter
D. DVD-ROM - CORRECT ANSWER - C. Analog-to-digital converter
,X-rays travel as bundles of energy called:
A. Energy waves
B. Phasers
C. Electromagnetic bursts
D. Photons - CORRECT ANSWER - D. Photons
What is atomic mass:
A. The number of protons plus the number of neutrons
B. The number of photons
C. The number of electrons
D. The number of protons plus the number of electrons - CORRECT ANSWER - A. The
number of protons plus the number of neutrons
What device may be used to ensure consistency of radiographic quality from one exposure to the
next:
A. Electronic timer
B. Step-up transformer
C. Automatic exposure control
D. High-frequency generator - CORRECT ANSWER - C. Automatic exposure control
When a predetermined level of ionization is reached in the ionization chamber, what does the
machine do:
,A. The unit shuts off as a result of malfunction
B. The maximum allowable time has been reached
C. The highest allowable dose to the patient has been reached
D. The exposure is terminated - CORRECT ANSWER - D. The exposure is terminated
What type of x-ray machine uses a continually decreasing mA for the shortest times possible:
A. Ionization chamber
B. Portable
C. C-arm
D. Falling load generator - CORRECT ANSWER - D. Falling load generator
What type of current is required for proper operation of the x-ray tube:
A. Direct
B. Falling load
C. Alternating
D. Fluctuating - CORRECT ANSWER - A. Direct
The law stating that the outer shell of an atom can contain no more than eight electrons is called:
A. Ohm's law
B. Octet rule
C. Octagon rule
, D. Electron binding energy - CORRECT ANSWER - B. Octet rule
Examples of particulate radiation are:
A. X-rays, gamma rays, and cosmic rays
B. Helium nuclei and beta particles
C. Electrons, protons, and meteorites
D. X-rays and quarks - CORRECT ANSWER - B. Helium nuclei and beta particles
Electromagnetic radiation travels:
A. In waves along a straight path
B. In circles
C. Back and forth
D. As electrons in waves along a straight path - CORRECT ANSWER - A. In waves along
a straight path
The latest digital fluoroscopic units use:
A. Non-ionizing radiation
B. CR cassettes
C. Conventional image intensifiers
D. Flat panel plates similar to DR - CORRECT ANSWER - D. Flat panel plates similar to
DR
Image production UPDATED ACTUAL
Exam Questions and CORRECT Answers
In many cases, digital fluoroscopy eliminates which of the following:
A. The need for a radiographer
B. Post-procedure "overhead" images
C. Image acquisition
D. Accurate positioning - CORRECT ANSWER - B. Post-procedure "overhead" images
What is the smallest particle of an element that retains the characteristic of the element:
A. Mole
B. Atom
C. Molecule
D. Quark - CORRECT ANSWER - B. Atom
In digital fluoroscopy, the image must be turned into digital form by what device:
A. Digital-to-analog converter
B. Flux capacitor
C. Analog-to-digital converter
D. DVD-ROM - CORRECT ANSWER - C. Analog-to-digital converter
,X-rays travel as bundles of energy called:
A. Energy waves
B. Phasers
C. Electromagnetic bursts
D. Photons - CORRECT ANSWER - D. Photons
What is atomic mass:
A. The number of protons plus the number of neutrons
B. The number of photons
C. The number of electrons
D. The number of protons plus the number of electrons - CORRECT ANSWER - A. The
number of protons plus the number of neutrons
What device may be used to ensure consistency of radiographic quality from one exposure to the
next:
A. Electronic timer
B. Step-up transformer
C. Automatic exposure control
D. High-frequency generator - CORRECT ANSWER - C. Automatic exposure control
When a predetermined level of ionization is reached in the ionization chamber, what does the
machine do:
,A. The unit shuts off as a result of malfunction
B. The maximum allowable time has been reached
C. The highest allowable dose to the patient has been reached
D. The exposure is terminated - CORRECT ANSWER - D. The exposure is terminated
What type of x-ray machine uses a continually decreasing mA for the shortest times possible:
A. Ionization chamber
B. Portable
C. C-arm
D. Falling load generator - CORRECT ANSWER - D. Falling load generator
What type of current is required for proper operation of the x-ray tube:
A. Direct
B. Falling load
C. Alternating
D. Fluctuating - CORRECT ANSWER - A. Direct
The law stating that the outer shell of an atom can contain no more than eight electrons is called:
A. Ohm's law
B. Octet rule
C. Octagon rule
, D. Electron binding energy - CORRECT ANSWER - B. Octet rule
Examples of particulate radiation are:
A. X-rays, gamma rays, and cosmic rays
B. Helium nuclei and beta particles
C. Electrons, protons, and meteorites
D. X-rays and quarks - CORRECT ANSWER - B. Helium nuclei and beta particles
Electromagnetic radiation travels:
A. In waves along a straight path
B. In circles
C. Back and forth
D. As electrons in waves along a straight path - CORRECT ANSWER - A. In waves along
a straight path
The latest digital fluoroscopic units use:
A. Non-ionizing radiation
B. CR cassettes
C. Conventional image intensifiers
D. Flat panel plates similar to DR - CORRECT ANSWER - D. Flat panel plates similar to
DR
