Question 1

When an image demonstrates little or low difference between the densities,the image is described as:

Accepted Answer

A)  poor quality. 
B)  high quality. 
C)  poor contrast. 
D)  low contrast. 
A)  poor quality. 
B)  high quality. 
C)  poor contrast. 
D)  low contrast.

Question 2

An increase in OID will result in:

Accepted Answer

A)  increased magnification. 
B)  increased image sharpness. 
C)  loss of contrast. 
D)  increased radiographic density. 
A)  increased magnification. 
B)  increased image sharpness. 
C)  loss of contrast. 
D)  increased radiographic density.

Question 3

The principle means of controlling involuntary motion is to:

Accepted Answer

A)  decrease in SID. 
B)  decrease in exposure time (seconds). 
C)  increase in exposure time (seconds). 
D)  increase in OID. 
A)  decrease in SID. 
B)  decrease in exposure time (seconds). 
C)  increase in exposure time (seconds). 
D)  increase in OID.

Question 4

Which quality factor is a key to visibility of detail?

Accepted Answer

A)  SID 
B)  Focal spot size 
C)  Density 
D)  Contrast 
A)  SID 
B)  Focal spot size 
C)  Density 
D)  Contrast

Question 5

Two exposures are made using the following technical factors: Image A: 500 mA,0.05 seconds,72 kVp
Image B: 200 mA,0.125 seconds,72 kVp
Which image would have the greater density?

Accepted Answer

A)  Image A 
B)  Image B 
C)  Image A and B would exhibit equal density. 
D)  Density cannot be determined because no SID was provided. 
A)  Image A 
B)  Image B 
C)  Image A and B would exhibit equal density. 
D)  Density cannot be determined because no SID was provided.

Question 6

The primary controlling factor of contrast is:

Accepted Answer

A)  milliamperage. 
B)  exposure time. 
C)  kilovoltage. 
D)  mAs. 
A)  milliamperage. 
B)  exposure time. 
C)  kilovoltage. 
D)  mAs.

Question 7

If the mA doubles,the quantity of exposure will:

Accepted Answer

A)  double. 
B)  be reduced 50%. 
C)  be indirectly proportional to the mA. 
D)  be indirectly proportional to the exposure time. 
A)  double. 
B)  be reduced 50%. 
C)  be indirectly proportional to the mA. 
D)  be indirectly proportional to the exposure time.

Question 8

Quantum mottle or graininess in the radiographic image because of too few photons interacting with the body part will affect image quality by decreasing the:

Accepted Answer

A)  density. 
B)  spatial resolution. 
C)  contrast. 
D)  latitude. 
A)  density. 
B)  spatial resolution. 
C)  contrast. 
D)  latitude.

Question 9

Quantum mottle occurs when the:

Accepted Answer

A)  SID is too large. 
B)  motion is not controlled. 
C)  mAs or kVp is set too high. 
D)  mAs or kVp is set too low. 
A)  SID is too large. 
B)  motion is not controlled. 
C)  mAs or kVp is set too high. 
D)  mAs or kVp is set too low.

Question 10

The primary controlling factor of radiographic density is:

Accepted Answer

A)  mAs. 
B)  kVp. 
C)  SID. 
D)  OID. 
A)  mAs. 
B)  kVp. 
C)  SID. 
D)  OID.

Question 11

The relationship between SID and x-ray beam intensity is expressed in the _____ law.

Accepted Answer

A)  proportional square 
B)  inverse square 
C)  reciprocity 
D)  target-distance 
A)  proportional square 
B)  inverse square 
C)  reciprocity 
D)  target-distance

Question 12

Higher kVp settings produce images with:

Accepted Answer

A)  long-scale contrast. 
B)  short-scale contrast. 
C)  high contrast. 
D)  little or no recorded detail. 
A)  long-scale contrast. 
B)  short-scale contrast. 
C)  high contrast. 
D)  little or no recorded detail.

Question 13

If the SID doubles,the quantity of x-rays will increase:

Accepted Answer

A)  1X. 
B)  2X. 
C)  3X. 
D)  4X. 
A)  1X. 
B)  2X. 
C)  3X. 
D)  4X.

Question 14

If an image were made using 500 mA,0.1 seconds,and 75 kVp,what would the mAs be for this exposure?

Accepted Answer

A)  5 mAs 
B)  50 mAs 
C)  25 mAs 
D)  500 mAs 
A)  5 mAs 
B)  50 mAs 
C)  25 mAs 
D)  500 mAs

Question 15

Contrast is directly influenced by:
1) SID.
2) fog.
3) collimation.

Accepted Answer

A)  1 and 2 
B)  1 and 3 
C)  2 and 3 
D)  1, 2, and 3 
A)  1 and 2 
B)  1 and 3 
C)  2 and 3 
D)  1, 2, and 3

Question 16

When a body part appears on a radiograph as shorter than it actually is,the term used is:

Accepted Answer

A)  penumbra. 
B)  distortion. 
C)  elongation. 
D)  foreshortening. 
A)  penumbra. 
B)  distortion. 
C)  elongation. 
D)  foreshortening.

Question 17

When an image demonstrates only a few densities,and there is a great difference between the densities,the image is described as having:

Accepted Answer

A)  short-scale contrast. 
B)  long-scale contrast. 
C)  low contrast. 
D)  increased recorded detail. 
A)  short-scale contrast. 
B)  long-scale contrast. 
C)  low contrast. 
D)  increased recorded detail.

Question 18

Another name for size distortion is:

Accepted Answer

A)  enlargement. 
B)  magnification. 
C)  minification. 
D)  flux gain. 
A)  enlargement. 
B)  magnification. 
C)  minification. 
D)  flux gain.

Question 19

The factors that affect x-ray quality are:
1) kilovoltage.
2) filtration.
3) mAs.

Accepted Answer

A)  1 and 2 
B)  1 and 3 
C)  2 and 3 
D)  1, 2, and 3 
A)  1 and 2 
B)  1 and 3 
C)  2 and 3 
D)  1, 2, and 3

Question 20

Generalized unwanted exposure on the image is called:

Accepted Answer

A)  overexposure. 
B)  overpenetration. 
C)  fog. 
D)  penumbra. 
A)  overexposure. 
B)  overpenetration. 
C)  fog. 
D)  penumbra.

Exam 7: Principles of Exposure and Image Quality

When an image demonstrates little or low difference between the densities,the image is described as:

An increase in OID will result in:

The principle means of controlling involuntary motion is to:

Which quality factor is a key to visibility of detail?

Two exposures are made using the following technical factors: Image A: 500 mA,0.05 seconds,72 kVp Image B: 200 mA,0.125 seconds,72 kVp Which image would have the greater density?

The primary controlling factor of contrast is:

If the mA doubles,the quantity of exposure will:

Quantum mottle or graininess in the radiographic image because of too few photons interacting with the body part will affect image quality by decreasing the:

Quantum mottle occurs when the:

The primary controlling factor of radiographic density is:

The relationship between SID and x-ray beam intensity is expressed in the _____ law.

Higher kVp settings produce images with:

If the SID doubles,the quantity of x-rays will increase:

If an image were made using 500 mA,0.1 seconds,and 75 kVp,what would the mAs be for this exposure?

Contrast is directly influenced by: 1) SID. 2) fog. 3) collimation.

When a body part appears on a radiograph as shorter than it actually is,the term used is:

When an image demonstrates only a few densities,and there is a great difference between the densities,the image is described as having:

Another name for size distortion is:

The factors that affect x-ray quality are: 1) kilovoltage. 2) filtration. 3) mAs.

Generalized unwanted exposure on the image is called:

Role of the Limited X-Ray Machine Operator

Introduction to Radiographic Equipment

Basic Mathematics for Limited Operators

Basic Physics of Radiography

X-Ray Production

X-Ray Circuit and Tube Heat Management

Digital Image Receptor Systems

Scatter Radiation and Its Control

Formulating X-Ray Techniques

Radiobiology and Radiation Safety

Introduction to Anatomy, positioning, and Pathology

Upper Extremity and Shoulder Girdle

Lower Extremity and Pelvis

Spine

Bony Thorax, Chest, and Abdomen

Skull, Facial Bones, and Paranasal Sinuses

Radiography of Pediatric and Geriatric Patients

Image Evaluation

Ethics, Legal Considerations, and Professionalism

Safety and Infection Control

Assessing Patients and Managing Acute Situations

Medications and Their Administration

Medical Laboratory Skills

Additional Procedures for Assessment and Diagnosis

Bone Densitometry

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