Quizzes
Search
Take Quizzes
Animal
Nutrition
Love
Relationship
Computer
Sports
Society
Business
Geography
Language
Personality
Harry Potter
Movie
Television
Music
Online Exam
Health
Country
Art
Entertainment
Celebrity
Math
Game
Book
Fun
Science
Food
History
Education
All Topics
Create a Quiz
Quiz Maker
Training Maker
Survey Maker
Flashcards
Brain Games
See All
ProProfs.com
Search
Create A Quiz
Take Quizzes
Animal
Nutrition
Love
Relationship
Computer
Sports
Society
Business
Geography
Language
Personality
Harry Potter
Movie
Television
Music
Online Exam
Health
Country
Art
Entertainment
Celebrity
Math
Game
Book
Fun
Science
Food
History
Education
All Topics
Products
Quiz Maker
Training Maker
Survey Maker
Flashcards
Brain Games
See All
ProProfs.com
Quizzes
Quizzes
›
Health
›
Radiology
Radiology Best Answer
87 Questions
|
By Yarilsa | Updated: Mar 17, 2022
| Attempts: 1020
Share
Quiz
Flashcard
Start
Share on Facebook
Share on Twitter
Share on Whatsapp
Share on Pinterest
Share on Email
Copy to Clipboard
Embed on your website
Question
1
/ 87
0 %
0/100
Score
0/100
1.
When exposing a radiograph the operator should stand
Al least six feet from the xray head
Two feet to the right of the primary beam
Any distance in back of the xray head
Four feet in front of patient
Submit
Start Quiz
About This Quiz
2.
What's your name?
We’ll put your name on your report, certificate, and leaderboard.
2.
Film fog may occur if there is
A light leak in the darkroom
Bending of the film
Reversal of the film
Extremely thick bone
Submit
3.
The best technique for reducing the radiation exposure to both patient and operator is the use of
An automatic timer
Fast film
Thinner films
A thicker cellulose acetate base
Submit
4.
When seating the patient the operator should
Tell the patient what is being done
Have the patient remove eyeglasses
Have the patient remove intraoral removable appliances
All of the above
Submit
5.
The x ray which is at the center of the primary beam is called the
Cathode ray
Secondary ray
Restricted beam
Central ray
Submit
6.
To avoid gonadal exposure to x ray which of the follwing may be used
Higher kvp
Lead apron
Finer detailed film
Increased vertical angulation
Submit
7.
The operator must avoid
Stray radiation
Secondary radiation
The primary beam
All of the above
Submit
8.
The gratest danger to the operator is
The central ray
Secondary radiation
Primary x ray beam
All of the above are of equal danger
Submit
9.
A technique used to measure the operator 's exposure to radiation is
To check the color of the operator's fingers
For the operator to wear a radiation film badge
The frequency of stomach pains
To multiply the nunber of films the operator has exposed by 0.1 rem
Submit
10.
Blurred films may result from
Incorrect vertical angulation
Movement of the patient
Increased kvp
Old film
Submit
11.
If a radiograph remains in the developing solution too long the film will be
Lighter
Darker
Lighter only if the temperature is increased
Unaffected because time is not a factor
Submit
12.
The penetrating power of xrays depend on
Kvp
Ma
Film speed
Focal film distance
Submit
13.
Scatter radiation is a type of
Secondary radiation
Primary radiation
Stray radiation
None of the above
Submit
14.
Periapical film
Show the entire tooth
Show the supporting structure of the tooth
Come in various sizes
All of the above
Submit
15.
The best way to dry processed films is to
Place them on paper towels
Hang them suspending the films in air
Place them in envelopes
Place them flat on the counter
Submit
16.
The most penetrating xrays have
Low frequencies
Soft rays
Long wavelengths
Long wavelengths
Short wavelengths
Submit
17.
The first sign of x ray dermatitis is
Loss of hair
Purulent exudate
Erythema
Pain
Submit
18.
The most radiopaque structure of the tooth is the
Enamel
Dentin
Cementation
Pulp chamber
Submit
19.
Which characteristic of xrays makes them both beneficial and hazardous?
They destroy tissue
They cause embolisms
They use the body's heat
They cause large fatty deposits to form
Submit
20.
The radiograph film is covered with an emulsion of
Silver bromide salts
Cellulose
Silver acetate
Potassium bromide
Submit
21.
The amount of radiation a person receives
Begings anew each day
Is cumulative only on the skin
Is cumulative in the entire body
None of the above
Submit
22.
The raised button on the radiogph aids in
Processing
Drying
Mounting
Determining film speed
Submit
23.
A constant source of radiation is
Strontium 90
Natural elements
The sun
All of the above
Submit
24.
Extraoral films are placed in rigid frames called
Fim frames
Skull plates
Jaw plates
Cassttes
Submit
25.
Black lines across the film may be the result of
Cone cutting
Souble exposure
Excessive bending
Underexposure
Submit
26.
Exposure of a radiograph on a child
Requires less time than an adult
Requires more time than an adult
Requires the same time as an adult
Should never be taken
Submit
27.
Wich cells are the most sensitive to xrays?
Muscle
Nerve
Sperm
Epithelial
Submit
28.
Which type of film cannot be used intraorally?
Bitewing
Occlusal
Periapical
None of the above
Submit
29.
Which cells are the least sensitive to x rays?
Ova
Blood
Sperm
Nerve
Submit
30.
The quality or penetrating power of secondary radiation is
More than that of primary radiation
Less than that of primary radiation
The same as that of primary radiation
Unrelated to that of primary radiation
Submit
31.
The fixing solution is
Acidic
Neutral
Basic
First basic then neutral after dilution
Submit
32.
The panoramic radiograph is not diagnostic for
Caries detection
General survey
Confirmation of mandibular fractures
Detection of impacted wisdom teeth
Submit
33.
Who should hold the film in a patient's mouth if he or she is unable to do so
The dentist
The assistant
A friend or relative
The receptionist
Submit
34.
The temperature of the radiographic processing solutions is adjusted by
Individual heaters
Chemical interaction
A temperature adjustable water bath
Gas heaters
Submit
35.
Xray are most effectively stopped by
A vacuum
Tungsten
Copper
Lead
Submit
36.
The chemicals used in processing solutions are dissolved in
Cellulose acetate
Distilled water
A thick emulsion
Potassium bromide
Submit
37.
The maximum whole body dose cosidered permissible to those who work with radiation is
0.1 rem /wk
1 rem/wk
10 rems/wk
100rem/wk
Submit
38.
The usual number of films in a complete dentulous radiographic survey is
10
18
24
26
Submit
39.
The size of the collimated beam for intraoral radiology measured at the patient skin is
1.5 to 1.75 inches
2.0 to 2.25 inches
2.75 to 3.00 inches
3.25 to 3.50 inches
Submit
40.
Overlapping is a result of
Incorrect vertical angulation
Incorrect horizontal angulation
Excessive bending of the film
All of the above
Submit
41.
Reticulation is
Cracking of the film emulsion
An electric charge in the developing solution
A latent image
Due to excess radiation
Submit
42.
Bitewing radiographs are useful in helping to determine
Interproximal caries
Proximal bone height
Fit of crowns
All of the above
Submit
43.
If a film is exposed on the wrong side the result will be
Darker films
No image at all
No effect
A herringbone pattern
Submit
44.
Fixing the film
Removes the unaffected silver salts
Removes the affected silver salts
Softens the film
Peels the emulsion from the film base
Submit
45.
The most radiolucent structure of a tooth is the
Enamel
Dentin
Cementation
Pulp chamber
Submit
46.
Secondary radiation emanates from the
Patient mouth
Exposed film
Closed end of cone
All of the above
Submit
47.
Cone cutting results from the central ray
Not being aimed at the center of film
Having incorrect horizontal angulation
Having insufficient vertical angulation
Being eliminated from a closed plastic cone
Submit
48.
Film racks should be
Clean and dry
Numbered and lettered
Neither of the above
Both of the above
Submit
49.
As the target film distance is increased there is
More chance of elongation
More chance of overlapping
More chance of foreshortening
Less distortion
Submit
50.
Film is washed after removing it from the developing solution to
Remove any debris on the film
Speed up the developing process
Stop the developing process
Remove the precipitated silver salts
Submit
51.
Filtration of the xray beam protects the patient by
Eliminating all radiation from the xray head
Eliminating weak wavelength xrays from the x ray beam
Eliminating short wavelength x rays from the xray beam
Decreasing exposure time
Submit
52.
Films not fixed for a long enough period of time will appear
To have black lines running through them
To be brittle
To have a brown tint
White
Submit
53.
The ala-tragus line is parallel to the floor when taking
Maxillary periapical films
Bitewings
Maxillary occlusal films
All of the above
Submit
54.
Film speed is determined by the
Amount of silver bromide salt
Thickness of cellulose acetate base
Size of the silver bromide crystal
Side of the film exposed
Submit
55.
After a film is exposed, the target film distance is doubled. the exposure time necessary to obtain a second film of equal density to the first film is
The same as the first film
Twofold
Threefold
Fourfold
Submit
56.
Maximum protection of the patient requires that the xray beam pass though a (n)
Plastic closed ended cone
Shielded open ended cone
Water filter
Oil filter
Submit
57.
How often should the processing solutions be changed
Each week
Every 3 to 4 weeks
Every5 to 6 weeks
Every 7 to 8 weeks
Submit
58.
In order for the developing chemicals to work, the solution must be
Acidic
Neutral
Basic
Submit
59.
If an unexposed film is processed it will appear
White
Black
Blue
Clear
Submit
60.
Dark films will result from
Underdeveloping
Overdeveloping
Underexposing
Overexposing
Overfixing
Submit
61.
a latent image is
An image taken with a long exposure
Found on only fast films
Composed of energized silver halide crystals
A very light image on the developed film
Submit
62.
Vertical angulation in the bisecting technique for the same radiograph may differ in patients due to
The size of the teeth
Anatomic differences
Gagging
Age
Submit
63.
Intensifying screems
Are used in intraoral films
Decrease exposure
Create additional x rays
Fuse with the film
Submit
64.
The occlusal plane of the arch being radiographed should be
Perpendicular to the floor
Parallel to the floor
At an angle of 45 degree to the floor
At an angle of 30 degree to the floor
Submit
65.
Occlusal films are used to determine
Mesiodistal orientation of a tooth
Buccal lingual orientation of a tooth
The presence of anterior caries
None of the above
Submit
66.
Which extraoral film is used to visualized the sinus?
Lateral oblique film
Lateral skull film
Waters films
Posterior anterior film
Submit
67.
When using the paralleling technique
The film is parallel to the tooth
The film always touches the tooth
You must use an 8 inch plastic cone
All of the above
Submit
68.
The housing of the xray tube is
Copper
Plastic
Tungsten
Glass
Submit
69.
Periapical films should extend beond the occlusal plane
1/8 inch
1/4 inch
3/8 inch
1/2 inch
Submit
70.
Film placement of the film will help prevent
Overlapping
Foreshortening
Gagging
Elongation
Submit
71.
When radiographs are taken of a pregnant patient
Periapical rather than bitewing films should be taken
Bitewing rather than periapical films should be taken
The patient should be treated as all other patients
As few film as possible should be taken
Submit
72.
Extraoral films are
More sensitive to light than intraoral films
Less sensitive to light than intraoral films
Just as sensitive to light as intraoral films
Not sensitive to light
Submit
73.
The optimum time temperature relationship for processing dental radiographs is
74 f for 4 1/2 minutes
68 F for 6 minutes
50 F for 5 minutes
Varied according to manufactures specification
Submit
74.
Elongation is caused by
Insufficient vertical angulation
Too much vertical angulation
Insufficient horizontal angulation
Excessive bending of the film
Submit
75.
The thermometer used to measure the temperature of the processing solutions is located
In the developer
In the wash water
In the fixer
Above the processing solutions
Submit
76.
Proper patient positioning for intraoral films requires the sagittal plane be
Parallel to the floor
Perpendicular to the floor
Parallel to the central ray
Perpendicular to the central ray
Submit
77.
The principle used in panoramic radiography is
Long cone
Laminography
Horizontal curvature
Panoramography
Submit
78.
Which of the following conditions cannot be identified radiographically?
Herpetic lesions
Periodontitis
Salivary stones
Frenum
Root tips
Submit
79.
The strength of the safelight permitted in the darkroom depends on the
Bulb in the safelight
Light tightness of the room
Sensitivity of the film
Tooth being radiographed
Submit
80.
In the paralleling technique a device which is used to hold the film in the patient's mouth is
The patient's finger
A bite block
A second film
All of the above
Submit
81.
The lead foil in the xray film packet is used to
Stop unused radiation
Tell the front of the film from the back
Prevent film fogging
Decrease operator's radiation exposure
Submit
82.
If the sagittal plane of the patient 's head is positioned incorrectly the result may be
Overlapping
Elongation
Darker films
All of the above
Submit
83.
To visualize the two roots on the maxillary first premolar the central ray should be directed.
Perpendicular to the buccal surface
Slightly from the mesial surface
Slightly from the distal surface
Submit
84.
When using the bisecting the angle technique
The central beam is perpendicular to the floor
The central beam is perpendicular to the tooth
The central beam is perpendicular to the line
Bisecting the angle formed by the tooth and film
The central beam is perpendicular to the cheek
Submit
85.
Light films will result from
Underdeveloping
Overdeveloping
Underexposure
Overexposure
Overfixing
Submit
86.
Small silver halide crystals on the film result in
More radiation to the patient
Better detail
Slower film
Faster film
Film fogging
Submit
87.
Exposure time is determine by
Kvp
Ma
The patient's weight
Vertical angulation
Area being radiographed
Submit
View My Results
Related Quizzes
Dental Radiology Practice Test: Quiz With Questions & Answers
Dental Radiology Practice Test: Quiz With Questions & Answers
Radiology Test Questions And Answers
Radiology Test Questions And Answers
CT Physics And Instrumentation Quiz Questions And Answers
CT Physics And Instrumentation Quiz Questions And Answers
CT Registry Certification Test Quiz!
CT Registry Certification Test Quiz!
Darkroom And Automatic Processors In Radiology MCQ Quiz
Darkroom And Automatic Processors In Radiology MCQ Quiz
A Trivia Quiz On Skull Positioning!
A Trivia Quiz On Skull Positioning!
Thank you for your feedback!
Would you like to edit this question to improve it?
No thanks
Name:
Email:
Oops! Give us more information:
Incorrect Question
Incorrect Answer
Typos
I have a feedback
Submit
Please provide name and email to proceed.
Please provide correct email to proceed.
Please provide feedback.
Please select the option.
All (87)
Unanswered (
)
Answered (
)
When exposing a radiograph the operator should stand
Film fog may occur if there is
The best technique for reducing the radiation exposure to both patient...
When seating the patient the operator should
The x ray which is at the center of the primary beam is called the
To avoid gonadal exposure to x ray which of the follwing may be used
The operator must avoid
The gratest danger to the operator is
A technique used to measure the operator 's exposure to radiation is
Blurred films may result from
If a radiograph remains in the developing solution too long the film...
The penetrating power of xrays depend on
Scatter radiation is a type of
Periapical film
The best way to dry processed films is to
The most penetrating xrays have
The first sign of x ray dermatitis is
The most radiopaque structure of the tooth is the
Which characteristic of xrays makes them both beneficial and...
The radiograph film is covered with an emulsion of
The amount of radiation a person receives
The raised button on the radiogph aids in
A constant source of radiation is
Extraoral films are placed in rigid frames called
Black lines across the film may be the result of
Exposure of a radiograph on a child
Wich cells are the most sensitive to xrays?
Which type of film cannot be used intraorally?
Which cells are the least sensitive to x rays?
The quality or penetrating power of secondary radiation is
The fixing solution is
The panoramic radiograph is not diagnostic for
Who should hold the film in a patient's mouth if he or she is unable...
The temperature of the radiographic processing solutions is adjusted...
Xray are most effectively stopped by
The chemicals used in processing solutions are dissolved in
The maximum whole body dose cosidered permissible to those who work...
The usual number of films in a complete dentulous radiographic survey...
The size of the collimated beam for intraoral radiology measured at...
Overlapping is a result of
Reticulation is
Bitewing radiographs are useful in helping to determine
If a film is exposed on the wrong side the result will be
Fixing the film
The most radiolucent structure of a tooth is the
Secondary radiation emanates from the
Cone cutting results from the central ray
Film racks should be
As the target film distance is increased there is
Film is washed after removing it from the developing solution to
Filtration of the xray beam protects the patient by
Films not fixed for a long enough period of time will appear
The ala-tragus line is parallel to the floor when taking
Film speed is determined by the
After a film is exposed, the target film distance is doubled. the...
Maximum protection of the patient requires that the xray beam pass...
How often should the processing solutions be changed
In order for the developing chemicals to work, the solution must be
If an unexposed film is processed it will appear
Dark films will result from
a latent image is
Vertical angulation in the bisecting technique for the same radiograph...
Intensifying screems
The occlusal plane of the arch being radiographed should be
Occlusal films are used to determine
Which extraoral film is used to visualized the sinus?
When using the paralleling technique
The housing of the xray tube is
Periapical films should extend beond the occlusal plane
Film placement of the film will help prevent
When radiographs are taken of a pregnant patient
Extraoral films are
The optimum time temperature relationship for processing dental...
Elongation is caused by
The thermometer used to measure the temperature of the processing...
Proper patient positioning for intraoral films requires the sagittal...
The principle used in panoramic radiography is
Which of the following conditions cannot be identified...
The strength of the safelight permitted in the darkroom depends on the
In the paralleling technique a device which is used to hold the film...
The lead foil in the xray film packet is used to
If the sagittal plane of the patient 's head is positioned incorrectly...
To visualize the two roots on the maxillary first premolar the central...
When using the bisecting the angle technique
Light films will result from
Small silver halide crystals on the film result in
Exposure time is determine by
X
OK
X
OK
Cancel
X
OK
Cancel
Back to top
Back to top
Advertisement