EXPOSURE 5TH EDITION FAUBER QUESTIONS &
ANSWERS WITHRATIONALES (CHAPTER 1 -10)|ALL
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Radiographic Imaging and Exposure 5th Edition Fauber
Test Bank
Chapter 01: Radiation and Its Discovery
Fauber: Radiographic Imaging and Exposure, 5th Edition
MULTIPLE CHOICE
1. When were x-rays discovered?
a. October 8, 1985
b. November 8, 1895
c. January 23, 1896
d. August 15, 1902
, ANS: B
X-rays were discovered by Wilhelm Conrad Roentgen on November 8, 1895.
REF: p.1
2. What type of tube was Roentgen working with in his lab when x-rays were discovered? A.
Crookes tube
b. Fluorescent tube
c. High-vacuum tube
d. Wurzburg tube
ANS: A
Roentgen was working with a low-vacuum tube known as a Crookes tube.
REF: p.2
3. Which of the following terms could be defined as the instantaneous production of light only
during an interaction between a type of energy and some element or compound? A.
Phosphorescence
b. Afterglow
c. Glowing
d. Fluorescence
ANS: D
Fluorescence is the instantaneous emission of light from a material due to the interaction with
some type of energy.
REF: p.2
4. Barium platinocyanide was the:
a. Type of dark paper Roentgen used to darken his laboratory.
b. Material Roentgen used to produce the first radiograph of his wife’s hand.
c. Metal used to produce the low-vacuum tube.
d. Fluorescent material that glowed when the tube was energized.
ANS: D
A piece of paper coated with barium platinocyanide glowed each time Roentgen energized his
tube.
REF: p.2
5. The first radiograph produced by Roentgen, of his wife’s hand, required an exposure time of: a.
15 s.
b. 150 s.
c. 15 min.
d. 150 min.
ANS: C
It took a 15-min exposure time to produce the first radiograph.
REF: p.3
6. The letter x in x-ray is the symbol for:
, a. Electricity.
b. The unknown.
c. Penetrating.
d. Discovery.
ANS: B
The letter x represents the mathematical symbol of the unknown.
REF: p.3
7. The first Nobel Prize for physics was received in 1901 by:
a. Marie Curie.
b. William Crookes.
c. Wilhelm Roentgen.
d. Albert Einstein.
ANS: C
Wilhelm Roentgen received the first Nobel Prize for physics in 1901.
REF: p.4
8. X-rays were at one time called:
a. Becquerel rays.
b. Roentgen rays.
c. Z-rays.
d. None of the above.
ANS: B
X-rays were at one time called Roentgen rays.
REF: p.4
9. Erythema, an early sign of biologic damage due to x-ray exposure, is:
a. Reddening of the skin.
b. A malignant tumor.
c. A chromosomal change.
d. 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 to
large doses of x-radiation.
REF: p.5
10. X-rays have which of the following properties?
a. Electrical
b. Magnetic
c. Chemical
d. A and B
e. A and C
ANS: D
X-rays, a type of electromagnetic radiation, have both electrical and magnetic properties.
REF: p.5
, 11. The distance between two successive crests of a sine wave is known as: a. An angstrom.
b. Frequency.
c. The Greek letter nu.
d. Wavelength
ANS: D
The distance between two successive crests or troughs of a sine wave is the measure of its
wavelength.
REF: p.6
12. X-rays used in radiography have wavelengths that are measured in: a. Angstroms.
b. Millimeters.
c. Centimeters.
d. Hertz.
ANS: A
X-rays in the range used in radiography have wavelengths that are so short that they are
measured in angstroms.
REF: p.6
13. The frequency of a wave is the number of waves passing a given point per given unit of time.
Frequency is measured in:
a. Angstroms.
b. Hertz.
c. Inches.
d. Ev.
ANS: B
The unit of frequency is hertz. The frequency of x-rays in the radiography range varies from
about 3 1019 to 3 1018 Hz.