Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
The speed of electrons hitting the target in an x-ray unit is controlled by:
a. milliaperage setting b. exposure time setting c. focal spot size d. kiloelectron volt peak setting e. both a & b |
D
|
|
|
Which of the following radiolucent structures would you see in a maxillary molar bitewing.
a. maxillary sinus b. mental foramen c. hamular notch d. lingual tori e. periodontal ligament space |
A?
C |
|
|
Place the following list in the proper order from longest to shortest wavelength.
1. x-rays 2. visible light 3. microwaves 4. radio waves 5. ultraviolet a. 3,4,5,2,1 b. 5,2,1,4,3 c. 4,3,5,1,2, d. 3,4,1,2,5 e. 4,3,2,5,1 |
E
|
|
|
All-wrap should be placed on all the following except:
a. ceiling light switch b. x-ray exposure switch c. x-ray control box d. door handles e. handles of exam light |
A
|
|
|
The maxillary sinus might appear in all but __________ radiographs:
a. maxillary premolar PA b. bitewing c. maxillary molar PA d. maxillary canine PA e. maxillary centrals PA |
B
|
|
|
Developer solution
a. is highly acidic b. dissolves and removes unexposed crystals c. is a source of electrons to form a metallic silver image d. hardens the emulsion e. removes the gel in the emulsion |
B
|
|
|
The key interproximal space for a left premolar bitewing is between teeth numbers:
a. 14/15 b. 13/14 c. 3/4 d. 4/5 e. 29/30 |
B
|
|
|
X-ray film differs from photographic film in that x-ray film:
a. has smaller halide crystals b. has greater sharpness c. has emulsion on both sides d. is sensitive only to x-rays e. is only usefull intraorally |
C
|
|
|
If you needed to use an older x-ray machine that had an impulse setting of 20 what would that be in seconds?
a. 0.15 sec b. 0.20 sec c. 0.33 sec d. 0.42 sec e. 0.25 sec |
C
|
|
|
Which component found in emulsion do not increase sensitivity of the film?
a. silver bromide crystals b. silver iodide crystals c. sulfur d. metallic silver e. larger crystal size |
E
|
|
|
Ideally, the localizing ring of a film holder should be:
a. right against the patient's skin b. within 4 mm of the patient's face c. about 3/4 of an inch from the patient's face d. beyond 2 cm of the patient's face e. 2 inches from the patient's face |
D
|
|
|
The unit measure that applies only a weighing factor for radiation type is:
a. effective dose b. exposure c. absorbed dose d. equivalent dose |
A
|
|
|
The darkness seen on a radiographic film is due to:
a. an air space b. x-ray striking the emulsion c. an accumulation of metallic silver d. thick bone |
B
|
|
|
Which of the films listed below would be best to use on a child under 7 years of age?
1. 0 2. 1 3. 2 4. 3 |
1. 0
|
