RAD Midterm 1 TCDHA questions with correct answers
Question :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
Correct answer:b. Image Receptor
Question :Which subatomic particle carries a negative
electrical charge?
a) A Neutron
b) A Proton
c) An Electron
d) A Nucleon
Correct answer:c. An Electron
Question :Cathode rays are derived from which of the
following types of particulate radiation?
- Electrons
- Alpha Particles
- Protons
- alpha particle decay
Correct answer:a. Electrons
Question :(1) Density is the overall darkness or blackness of a
dental image. (2) When the kilovoltage is increased while other exposure factors remain constant, the resultant image exhibits a decreased density and appears lighter.
- Both statement are true
- Both statement are false
- The first statement is true; the second statement is false
Correct answer:c. The first statement is true; the second
statement is false
Question :Which of the following is the LEAST sensitive to
x-rays?
- Bone marrow
- Salivary glands
- Lymphoid tissue
- Intestine
Correct answer:b. Salivary Glands
Question :What should you do prior to taking x-rays to
protect your patient from radiation exposure?
- Proper film processing
- Proper prescribing of radiographs
- A Lead Apron
- A Thyroid Collar
Correct answer:b. Proper prescribing of radiographs
Question :A form of energy carried by waves or streams of
particles is defined as...
Correct answer:Radiation
Question :The x-ray was discovered by...
Correct answer:Wilhelm Roentgen
Question :Who MODIFIED the paralleling technique with the
introduction of the long-cone technique?
Correct answer:F. Gordon Fitzgerald
Question :What is the binding energy or binding force of an
electron is...
Correct answer:Determined by the distance between the
orbiting electrons and the nucleus
Question :A spontaneous emission of radiation from the
disintegration of unstable atomic nuclei is...
Correct answer:Radioactivity
Question :What type of radiation includes x-rays and visible
light?