Oral Radiology Practice Examination
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This quiz will test the dental student's understanding and knowledge of radiation physics and fundamentals of radiographic interpretation.
- 1.
- A.
Gamma rays
- B.
X-rays
- C.
Cathode rays
- D.
None of the above
- E.
All of the above
- 2.
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Name the following intraoral radiograph- A.
Periapical radiograph
- B.
Bitewing radiograph
- C.
Occlusal radiograph
- D.
Biteblock radiograph
- E.
Pericoronal radiograph
- 3.The cathode and anode are parts of an x-ray tube. The anode is negatively charged.
- A.
The first statement is correct. The second statement is wrong
- B.
The first statement is wrong. The second statement is correct
- C.
Both the statements are correct
- D.
Both the statements are wrong
- 4.One of the following types of radiation has high Linear Energy Transfer (LET) and hence the potential for more radiation related tissue damage
- A.
Gamma rays
- B.
X-rays
- C.
Alpha rays
- D.
Micro waves
- E.
U-V radiation
- 5.
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Identify the intraoral radiograph shown- A.
Periapical radiograph
- B.
Bitewing radiograph
- C.
Maxillary midline occlusal radiograph
- D.
Mandibular floor of the mouth occlusal
- E.
Lateral cephalometric radiograph
- 6.
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The radiograph shown here is a- A.
Panoramic radiograph
- B.
Occlusal radiograph
- C.
Lateral oblique radiograph
- D.
P-A view of the skull
- E.
A-P view of the skull
- 7.
- A.
Convert the line current of 110 volts to less than 10 milli ampeares
- B.
Convert the line current of 110 volts to less than 10 volts
- C.
Convert the line current of 220 volts to less than 10 volts
- D.
Convert the line current of 110 volts to less than 100 amperes
- 8.In the radiographic principle, "SLOB rule, "same side movement of the object is ______ and the oppsite side movement of the object is ______. What are the missing words in the same sequence.
- A.
Lateral and buccal
- B.
Lingual and buccal
- C.
Lingual and both sides
- D.
Lateral and both sides
- 9.70 kilovolts equals
- A.
70,000 volts
- B.
700,000 volts
- C.
70,000,000 volts
- D.
7,000 volts
- E.
700 volts
- 10.The "rotating anode" design in an x-ray tube limits the amount of
- A.
Lighting at anode
- B.
Heat production at anode
- C.
Electron production at cathode
- D.
Speed of electrons from cathode to anode
- E.
X-rays that are produced at the anode
- 11.An example of an electro-magnetic radiation is
- A.
Alpha rays
- B.
Beta rays
- C.
Cathode rays
- D.
Gamma rays
- E.
None of the above
- 12.The sharpness of the image is determined to a large extent by the
- A.
Shape of the object
- B.
The focal spot size
- C.
The make of the x-ray machine
- D.
The distance between the anode and cathode
- E.
None of the above
- 13.
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The radiograph shown here is frequently used in Orthodontics for study of the growth and development of the head. Name the radiograph- A.
PA skull
- B.
AP skull
- C.
Submento vertex view
- D.
Lateral Cephalometric view
- E.
Panoramic view
- 14.The "p" in kVp stands for
- A.
Percentage
- B.
Parallel
- C.
Punitive
- D.
Peak
- E.
Paired
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