AND EXPOSURE 5TH EDITION FAUBER
QUESTIONS & ANSWERS WITH
RATIONALES COMPLETE (CHAPTER 1-
10)
, RADIOGRAPHIC IMAGING AND EXPOSURE 5TH
EDITION FAUBERTEST BANK
Chapter 01: Radiation and Its Discovery
Fauber: Radiographic Imaging and Exposure, 5th Edition
MULTIPLE CHOICE
When were x-rays discovered?
October 8, 1985
November 8, 1895
January 23, 1896
August 15, 1902
ANS: B
X-rays were discovered by Wilhelm Conrad Roentgen on November 8, 1895.
REF: p.1
What type of tube was Roentgen working with in his lab when x-rays were discovered?
Crookes tube
Fluorescent tube
High-vacuum tube
Wurzburg tube
ANS: A
Roentgen was working with a low-vacuum tube known as a Crookes tube.
REF: p.2
Which of the following terms could be defined as the instantaneous production of light onlyduring an
interaction between a type of energy and some element or compound?
Phosphorescence
Afterglow
Glowing
Fluorescence
ANS: D
Fluorescence is the instantaneous emission of light from a material due to the interaction withsome type of
energy.
REF: p.2
Barium platinocyanide was the:
type of dark paper Roentgen used to darken his laboratory.
material Roentgen used to produce the first radiograph of his wife’s hand.
metal used to produce the low-vacuum tube.
fluorescent material that glowed when the tube was energized.
ANS: D
A piece of paper coated with barium platinocyanide glowed each time Roentgen energized histube.
REF: p.2
,The first radiograph produced by Roentgen, of his wife’s hand, required an exposure time of:
15 s.
b. 150 s.
15 min.
150 min.
ANS: C
It took a 15-min exposure time to produce the first radiograph.
REF: p.3
The letter x in x-ray is the symbol for:
electricity.
the unknown.
penetrating.
discovery.
ANS: B
The letter x represents the mathematical symbol of the unknown.
REF: p.3
The first Nobel Prize for physics was received in 1901 by:
Marie Curie.
William Crookes.
Wilhelm Roentgen.
Albert Einstein.
ANS: C
Wilhelm Roentgen received the first Nobel Prize for physics in 1901.
REF: p.4
X-rays were at one time called:
Becquerel rays.
Roentgen rays.
Z-rays.
none of the above.
ANS: B
X-rays were at one time called Roentgen rays.
REF: p.4
Erythema, an early sign of biologic damage due to x-ray exposure, is:
reddening of the skin.
a malignant tumor.
a chromosomal change.
one of the most serious effects of x-ray exposure.
ANS: A
, Erythema is reddening and burning of the skin, an early and less serious effect of exposure tolarge doses of x-
radiation.
REF: p.5
X-rays have which of the following properties?
Electrical
Magnetic
Chemical
A and B
A and C
ANS: D
X-rays, a type of electromagnetic radiation, have both electrical and magnetic properties.
REF: p.5
The distance between two successive crests of a sine wave is known as:
an angstrom.
frequency.
the Greek letter nu.
wavelength
ANS: D
The distance between two successive crests or troughs of a sine wave is the measure of itswavelength.
REF: p.6
X-rays used in radiography have wavelengths that are measured in:
angstroms.
millimeters.
centimeters.
hertz.
ANS: A
X-rays in the range used in radiography have wavelengths that are so short that they aremeasured in
angstroms.
REF: p.6
The frequency of a wave is the number of waves passing a given point per given unit of time.
Frequency is measured in:
angstroms.
hertz.
inches.
eV.
ANS: B
The unit of frequency is hertz. The frequency of x-rays in the radiography range varies fromabout 3 1019 to 3
1018 Hz.