Rad 101 Chapter 1&2 questions with
correct answers
X-rays were discovered in 1895 by
a. Coolidge
b. Crookes
c. Roentgen
d. Edison - correct answer ✔✔c
Which of the following is not an accurate statement regarding the characteristics of x-rays?
a. They can penetrate matter that is impenetrable to light
b. They cause certain crystals to fluoresce
c. They can be refracted by a lens
d. They cannot be detected by the human senses - correct answer ✔✔c
An electron cloud surrounding a hot cathode is referred to as a(n)
a. focusing cup
b. ampere
c. space charge
d. filament - correct answer ✔✔c
An imaginary photon that is emitted from the center of the focal spot, perpendicular to the long axis of
the x-ray tube, is called the:
a. electron stream
b. x-ray beam
c. central ray
d. radiation field - correct answer ✔✔c
,The function of an x-ray grid is to
a. decrease patient radiation dose.
b. increase radiographic resolution
c. increase radiographic contrast by reducing scatter radiation fog
d. increase radiographic density - correct answer ✔✔c
The majority of radiography education programs today are based in
a. proprietary schools
b. hospitals
c. clinics
d. colleges - correct answer ✔✔d
The container for the vacuum of the X-ray tube is made of
a. glass
b. aluminum
c. tungsten
d. carbon - correct answer ✔✔a
The frequency of an electromagnetic sine wave is defined as
a. the distance from trough to crest
b. the distance from one crest to the next
c. the number of times per second that a crest passes a given point
d. the velocity at which the wave travels through space - correct answer ✔✔c.
Which of the following substances is most readily penetrated by s-rays?
a. water
b. air
c. bone
d. fat - correct answer ✔✔b
, An x-ray machine designed for direct viewing of the x-ray image is called a(n)
a. image receptor
b. transformer
c. control console
d. fluoroscope - correct answer ✔✔d
Who invented the hot cathode X-ray tube, the prototype of modern X-ray tubes?
a. Coolidge
b. Pupin
c. Roentgen
d. Edison - correct answer ✔✔a
Which type of radiation forms the x-ray image?
a. Primary
b. Remnant
c. Secondary
d. Scatter - correct answer ✔✔b.
The___ is the portion of the X-ray tube that contains the filament
a. cathode
b. anode
c. rotor
d. rotating disk - correct answer ✔✔a.
The filament, the source of electrons during s-ray production is located in the cathode
The focusing cup:
correct answers
X-rays were discovered in 1895 by
a. Coolidge
b. Crookes
c. Roentgen
d. Edison - correct answer ✔✔c
Which of the following is not an accurate statement regarding the characteristics of x-rays?
a. They can penetrate matter that is impenetrable to light
b. They cause certain crystals to fluoresce
c. They can be refracted by a lens
d. They cannot be detected by the human senses - correct answer ✔✔c
An electron cloud surrounding a hot cathode is referred to as a(n)
a. focusing cup
b. ampere
c. space charge
d. filament - correct answer ✔✔c
An imaginary photon that is emitted from the center of the focal spot, perpendicular to the long axis of
the x-ray tube, is called the:
a. electron stream
b. x-ray beam
c. central ray
d. radiation field - correct answer ✔✔c
,The function of an x-ray grid is to
a. decrease patient radiation dose.
b. increase radiographic resolution
c. increase radiographic contrast by reducing scatter radiation fog
d. increase radiographic density - correct answer ✔✔c
The majority of radiography education programs today are based in
a. proprietary schools
b. hospitals
c. clinics
d. colleges - correct answer ✔✔d
The container for the vacuum of the X-ray tube is made of
a. glass
b. aluminum
c. tungsten
d. carbon - correct answer ✔✔a
The frequency of an electromagnetic sine wave is defined as
a. the distance from trough to crest
b. the distance from one crest to the next
c. the number of times per second that a crest passes a given point
d. the velocity at which the wave travels through space - correct answer ✔✔c.
Which of the following substances is most readily penetrated by s-rays?
a. water
b. air
c. bone
d. fat - correct answer ✔✔b
, An x-ray machine designed for direct viewing of the x-ray image is called a(n)
a. image receptor
b. transformer
c. control console
d. fluoroscope - correct answer ✔✔d
Who invented the hot cathode X-ray tube, the prototype of modern X-ray tubes?
a. Coolidge
b. Pupin
c. Roentgen
d. Edison - correct answer ✔✔a
Which type of radiation forms the x-ray image?
a. Primary
b. Remnant
c. Secondary
d. Scatter - correct answer ✔✔b.
The___ is the portion of the X-ray tube that contains the filament
a. cathode
b. anode
c. rotor
d. rotating disk - correct answer ✔✔a.
The filament, the source of electrons during s-ray production is located in the cathode
The focusing cup:
