RAD Midterm 1 TCDHA Exam Test Questions with Verified Answers
1. Radiation A form of energy carried by waves or
streams of particles is defined as...
2. Wilhelm Roentgen The x-ray was discovered by...
3. F. Gordon Fitzgerald Who MODIFIED the paralleling technique
with the introduction of the long-cone
technique?
4. b. Image Receptor Which of the following would you place in
the patient's mouth in order to take dental
x-rays?
a) Image
b) Image Receptor
c) Radiograph
d) Dental radiograph
5. c. An Electron Which subatomic particle carries a nega-
tive electrical charge?
a) A Neutron
b) A Proton
c) An Electron
d) A Nucleon
6. Determined by the distance be- What is the binding energy or binding
tween the orbiting electrons force of an electron is...
and the nucleus
7. Radioactivity A spontaneous emission of radiation from
the disintegration of unstable atomic nu-
clei is...
8. a. Electrons Cathode rays are derived from which of
the following types of particulate radia-
tion?
a. Electrons
b. Alpha Particles
c. Protons
d. alpha particle decay
, RAD Midterm 1 TCDHA Exam Test Questions with Verified Answers
9. Electromagnetic What type of radiation includes x-rays and
visible light?
10. Less than 1% Approximately what percentage of the ki-
netic energy of the electrons is converted
to x-rays at the anode?
11. The Lead Collimator What restricts the size of the x-ray beam?
12. Scatter Radiation Which form of the x-ray beam is more
detrimental to the patient and operator?
13. The electrons moves from the What happens with the electrons when
CATHODE to the ANODE with the kilovoltage is increased?
more speed
14. When the kilovolt is increased Higher-energy x-ray beam with increased
penetrating ability results by...
15. c. The first statement is true; the (1) Density is the overall darkness or
second statement is false blackness of a dental image. (2) When the
kilovoltage is increased while other expo-
sure factors remain constant, the resultant
image exhibits a decreased density and
appears lighter.
a. Both statement are true
b. Both statement are false
c. The first statement is true; the second
statement is false
16. Milliamperage (mA) What controls the quantity of x-rays pro-
duced?
17. An increase in either kVp or mA In regard to increasing density:
will increase density.
18. Inversely; square of the dis- According to inverse square law, the inten-
tance sity of radiation is proportional
1. Radiation A form of energy carried by waves or
streams of particles is defined as...
2. Wilhelm Roentgen The x-ray was discovered by...
3. F. Gordon Fitzgerald Who MODIFIED the paralleling technique
with the introduction of the long-cone
technique?
4. b. Image Receptor Which of the following would you place in
the patient's mouth in order to take dental
x-rays?
a) Image
b) Image Receptor
c) Radiograph
d) Dental radiograph
5. c. An Electron Which subatomic particle carries a nega-
tive electrical charge?
a) A Neutron
b) A Proton
c) An Electron
d) A Nucleon
6. Determined by the distance be- What is the binding energy or binding
tween the orbiting electrons force of an electron is...
and the nucleus
7. Radioactivity A spontaneous emission of radiation from
the disintegration of unstable atomic nu-
clei is...
8. a. Electrons Cathode rays are derived from which of
the following types of particulate radia-
tion?
a. Electrons
b. Alpha Particles
c. Protons
d. alpha particle decay
, RAD Midterm 1 TCDHA Exam Test Questions with Verified Answers
9. Electromagnetic What type of radiation includes x-rays and
visible light?
10. Less than 1% Approximately what percentage of the ki-
netic energy of the electrons is converted
to x-rays at the anode?
11. The Lead Collimator What restricts the size of the x-ray beam?
12. Scatter Radiation Which form of the x-ray beam is more
detrimental to the patient and operator?
13. The electrons moves from the What happens with the electrons when
CATHODE to the ANODE with the kilovoltage is increased?
more speed
14. When the kilovolt is increased Higher-energy x-ray beam with increased
penetrating ability results by...
15. c. The first statement is true; the (1) Density is the overall darkness or
second statement is false blackness of a dental image. (2) When the
kilovoltage is increased while other expo-
sure factors remain constant, the resultant
image exhibits a decreased density and
appears lighter.
a. Both statement are true
b. Both statement are false
c. The first statement is true; the second
statement is false
16. Milliamperage (mA) What controls the quantity of x-rays pro-
duced?
17. An increase in either kVp or mA In regard to increasing density:
will increase density.
18. Inversely; square of the dis- According to inverse square law, the inten-
tance sity of radiation is proportional
