Questão 1
Questão
Which scientist first discovered X-Rays?
Responda
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Wilhelm Konrad Roentgen
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Doctor H. G. Gama
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Doctor Otto Proton
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Raymond Cathode
Questão 2
Questão
What is the name of the tube that was discovered in 1895?
Responda
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Crooke's tube
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Roentgen’s tube
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Walkoff tube
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Evacuating tube
Questão 3
Questão
Which of the following is NOT a characteristic property of X-Rays?
Responda
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They travel in straight lines
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They travel at the speed of sound
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They cause irritation to living cells
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They cause certain substances to fluoresce
Questão 4
Questão
The rule that applies to the principle of radiation safety is:
Questão 5
Questão
When taking radiographs, always drape the patient with a lead apron.
Questão 6
Questão
The time setting on the X-Ray machine is measured by using which of the following methods?
Questão 7
Questão
Which of the following instruction is most important when ordering radiographs for female patients?
Responda
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Have the patient remove her eyeglasses
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Have the patient remove her earrings
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Ask the patient is she has any type of denture
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Ask the patient if she is pregnant
Questão 8
Questão
The film badge should be placed behind the lead-lined barrier at least what number of feet from the tube head?
Questão 9
Questão
Which of the following is NOT a safety precaution for taking radiographs?
Responda
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Always stand behind a lead screen during an exposure
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Never stand in the path of the central X-Ray beam during exposure
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Never hold the tube head or the tube head cylinder of the X-Ray machine during exposure
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Hold the film packet in the patient’s mouth during exposure if necessary
Questão 10
Questão
Which of the following personnel are authorized to order and diagnostically interpret dental radiographs?
Responda
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Dental X-Ray technician
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Front desk personnel
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Dental Officers
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Dental technicians
Questão 11
Questão
How often should the surfaces in the dark room be disinfected?
Responda
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Daily
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Weekly
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Bi-Weekly
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Monthly
Questão 12
Questão
Of the following personnel who is NOT allowed to order radiographs?
Questão 13
Questão
All of the following are indications for a PA (posterior & Anterior) of the chest, EXCEPT?
Responda
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Pain with respiration
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Chronic cough
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Asbestos
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Rash and streaking
Questão 14
Questão
Which of the following organs will not be seen in a KUB radiograph?
Responda
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Kidney
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Liver
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Ureters
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Bladder
Questão 15
Questão
Which of the following structures will be seen in the AP projection of the cervical spine?
Questão 16
Questão
A patient presenting with chronic cervical spine pain should be ordered what type of radiograph?
Responda
-
KUB
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AP Cervical Spine
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Pelvic
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Chest PA
Questão 17
Questão
At approximately what angle should the ankle be when taking an oblique radiograph?
Questão 18
Questão
What should be shielded when you are taking an X-ray?
Responda
-
Hypothalamus
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Heart
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Reproductive organs
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Scrotum
Questão 19
Questão
The paralleling device consists of which of the following parts?
Responda
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A locator ring
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An indicator rod
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a bite-block
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All of the above
Questão 20
Questão
The bisecting angle technique is the preferred method and recommended for routine use when taking periapical radiographs.
Questão 21
Questão
When taking radiographs, which of the following factors should you consider before using the bisecting-angle technique?
Responda
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There are no paralleling devices available
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The patient cannot close mouth on bite-block
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The patient has a rubber dam in place
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All of the above
Questão 22
Questão
What landmark is used when exposing the maxillary bicuspid area?
Responda
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Tip of the nose
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Beside the ala of the nose
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Below the pupil of the eye
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Below the out angle of the eye and below the zygomatic bone
Questão 23
Questão
The position of the patient’s mid-sagittal plane must be perpendicular to the floor when exposing a periapical radiograph using the bisecting-angle technique.
Questão 24
Questão
The occlusal film packet contains two X-Ray films.
Questão 25
Questão
What X-Ray machine settings should you use when exposing a maxillary occlusal radiograph on an adult?
Responda
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10 mA, 87kVp, and 60 impulses
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12 mA, 90kVp, and 60 impulses
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10 mA, 90kVp, and 60 impulses
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12 mA, 87kVp, and 40 impulses
Questão 26
Questão
What vertical angulation setting should you use when exposing a maxillary anterior occlusal radiograph?
Responda
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+50 degrees
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+55 degrees
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+60 degrees
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+65 degrees
Questão 27
Questão
When exposing a maxillary posterior occlusal radiograph, you should use what vertical angulation setting?
Responda
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+75 degrees
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+70 degrees
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+65 degrees
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+60 degrees
Questão 28
Questão
When exposing a mandibular anterior occlusal radiograph, what vertical angulation should you use?
Responda
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-10 degrees
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5 degrees
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0 degrees
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+5 degrees
Questão 29
Questão
A safe light is the only safe source of illumination used in the darkroom when processing radiographs.
Questão 30
Questão
When checking for light leaks in the darkroom, you should leave the penny on the X-Ray film for at least what number of minutes?
Questão 31
Questão
Which of the following methods is most commonly used to process dental radiographs in the Navy?
Responda
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Laser processing
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Manual processing
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Computer processing
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Automatic processing
Questão 32
Questão
Which of the following procedures should be included in the daily maintenance of the X-Ray machine?
Responda
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Dusting
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Cleaning with a cloth moistened with water
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Both dusting and Cleaning with a cloth moistened with water
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Cleaning with a cloth moistened with solvent
Questão 33
Questão
You should wait what number of seconds between films before inserting another film into the automatic processor?
Questão 34
Questão
The developer and fixer solutions in the automatic processor should be changed at what minimum frequencies?
Responda
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Daily
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Weekly
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Biweekly
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Every 3 to 4 weeks
Questão 35
Questão
The processing solutions used in the automatic processor are the same as those used in the manual processing procedure.
Questão 36
Questão
The cleaning of the roller transports and the solutions in the automatic processor are accomplished at what minimum intervals?
Responda
-
Twice a day
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Daily
-
Weekly
-
Monthly
Questão 37
Questão
Which teeth can be identified radiographically by a large white region caused by the bone of the nasal septum?
Questão 38
Questão
When mounting radiographs, the raised dimple should be facing you.
Questão 39
Questão
You should attempt to complete all X-Ray repairs yourself.