Question 1

What effect will increasing SID have on recorded detail?

Accepted Answer

A)  Increased recorded detail 
B)  Decreased recorded detail 
C)  No effect on recorded detail 
A)  Increased recorded detail 
B)  Decreased recorded detail 
C)  No effect on recorded detail

Question 2

If a person stands 12 feet from the source of exposure,receives an exposure of 60 mR,and then moves to 3 feet from the source of exposure,what would be the new exposure according to the inverse square law?

Accepted Answer

A)  15 mR 
B)  45 mR 
C)  240 mR 
D)  960 mR 
A)  15 mR 
B)  45 mR 
C)  240 mR 
D)  960 mR

Question 3

The misrepresentation of the size of an object is:

Accepted Answer

A)  shape distortion. 
B)  magnification. 
C)  foreshortening. 
D)  elongation. 
A)  shape distortion. 
B)  magnification. 
C)  foreshortening. 
D)  elongation.

Question 4

With film-screen imaging,what is the primary controller of image contrast?

Accepted Answer

A)  kVp 
B)  mA 
C)  Seconds 
D)  SID 
A)  kVp 
B)  mA 
C)  Seconds 
D)  SID

Question 5

What effect does the level of mAs have on image brightness when using digital image receptors?

Accepted Answer

A)  Increases image brightness. 
B)  Decreases image brightness. 
C)  Does not directly affect image brightness. 
A)  Increases image brightness. 
B)  Decreases image brightness. 
C)  Does not directly affect image brightness.

Question 6

With digital imaging,if lower than needed kVp is set,the image will have _______________ brightness and _________________ quantum mottle.

Accepted Answer

A)  very low; increased 
B)  appropriate; increased 
C)  excessive; decreased 
D)  unacceptable; decreased 
A)  very low; increased 
B)  appropriate; increased 
C)  excessive; decreased 
D)  unacceptable; decreased

Question 7

Increased quantum noise is seen in a digital image with:

Accepted Answer

A)  severely lower-than-needed mAs. 
B)  a little lower-than-needed mAs. 
C)  a little higher-than-needed mAs. 
D)  severely higher-than-needed mAs. 
A)  severely lower-than-needed mAs. 
B)  a little lower-than-needed mAs. 
C)  a little higher-than-needed mAs. 
D)  severely higher-than-needed mAs.

Question 8

With digital imaging,the same mAs and kVp should be used for an AP lumbar spine and a lateral lumbar spine.

Accepted Answer

A) True 
 B)False

Question 9

With film-screen imaging,for a given exposure technique,increasing part thickness decreases radiographic density.

Accepted Answer

A) True 
 B)False

Question 10

If the first radiograph of a chest is done using 72 in and 12 mAs,and a second radiograph is done using 40 in,how much mAs should be used to maintain exposure to the IR?

Accepted Answer

A)  2 mAs 
B)  4 mAs 
C)  7 mAs 
D)  9 mAs 
A)  2 mAs 
B)  4 mAs 
C)  7 mAs 
D)  9 mAs

Question 11

With film-screen imaging,what is the minimum change in mAs that would result in a visible change in radiographic density?

Accepted Answer

A)  10% 
B)  15% 
C)  30% 
D)  100% 
A)  10% 
B)  15% 
C)  30% 
D)  100%

Question 12

Increasing the kVp will _________ the IR exposure and density produced on the film image.

Accepted Answer

A)  increase 
B)  decrease 
C)  not affect 
A)  increase 
B)  decrease 
C)  not affect

Question 13

With all other factors remaining the same,a patient with which body habitus would require the highest exposure factors?

Accepted Answer

A)  Asthenic 
B)  Sthenic 
C)  Hypersthenic 
D)  Hyposthenic 
A)  Asthenic 
B)  Sthenic 
C)  Hypersthenic 
D)  Hyposthenic

Question 14

With film-screen imaging,which of the following technique factors will produce an image with the greatest density?

Accepted Answer

A)  300 mA, 0.5 s 
B)  400 mA, 0.5 s 
C)  100 mA, 0.5 s 
D)  800 mA, 0.01 s 
A)  300 mA, 0.5 s 
B)  400 mA, 0.5 s 
C)  100 mA, 0.5 s 
D)  800 mA, 0.01 s

Question 15

With film-screen imaging,an abdomen image is done using 60 kVp and 30 mAs.Image density is appropriate,but the image has too high (short scale)contrast.Which of these exposure factors would be the best change to make?

Accepted Answer

A)  51 kVp and 60 mAs 
B)  51 kVp and 30 mAs 
C)  69 kVp and 30 mAs 
D)  69 kVp and 15 mAs 
A)  51 kVp and 60 mAs 
B)  51 kVp and 30 mAs 
C)  69 kVp and 30 mAs 
D)  69 kVp and 15 mAs

Question 16

Changes in kVp do not affect the digital exposure indicator.

Accepted Answer

A) True 
 B)False

Question 17

With film-screen imaging,if the kVp were decreased by 15% and no changes were made to the mAs:

Accepted Answer

A)  density would be unchanged, and contrast would decrease. 
B)  density would increase, and contrast would decrease. 
C)  density would decrease, and contrast would increase. 
D)  there would be no change in either contrast or density. 
A)  density would be unchanged, and contrast would decrease. 
B)  density would increase, and contrast would decrease. 
C)  density would decrease, and contrast would increase. 
D)  there would be no change in either contrast or density.

Question 18

With digital imaging,using twice as much mAs as needed will result in an image with _______________ brightness and _________________ patient exposure.

Accepted Answer

A)  appropriate; increased 
B)  appropriate; appropriate 
C)  excessive; increased 
D)  excessive; appropriate 
A)  appropriate; increased 
B)  appropriate; appropriate 
C)  excessive; increased 
D)  excessive; appropriate

Question 19

With film-screen imaging,what would be the appropriate change in mAs if the kVp were decreased by 15% and the density needed to be maintained?

Accepted Answer

A)  Double the mAs. 
B)  Halve the mAs. 
C)  Use one fourth of the mAs. 
D)  No change would be necessary. 
A)  Double the mAs. 
B)  Halve the mAs. 
C)  Use one fourth of the mAs. 
D)  No change would be necessary.

Question 20

With film-screen imaging,decreasing collimation (using a larger field size)results in ____________image contrast and ____________ patient exposure.

Accepted Answer

A)  lower; higher 
B)  lower; lower 
C)  higher; higher 
D)  higher; lower 
A)  lower; higher 
B)  lower; lower 
C)  higher; higher 
D)  higher; lower

What effect will increasing SID have on recorded detail?

If a person stands 12 feet from the source of exposure,receives an exposure of 60 mR,and then moves to 3 feet from the source of exposure,what would be the new exposure according to the inverse square law?

The misrepresentation of the size of an object is:

With film-screen imaging,what is the primary controller of image contrast?

What effect does the level of mAs have on image brightness when using digital image receptors?

With digital imaging,if lower than needed kVp is set,the image will have _ brightness and ___ quantum mottle.

Increased quantum noise is seen in a digital image with:

With digital imaging,the same mAs and kVp should be used for an AP lumbar spine and a lateral lumbar spine.

With film-screen imaging,for a given exposure technique,increasing part thickness decreases radiographic density.

If the first radiograph of a chest is done using 72 in and 12 mAs,and a second radiograph is done using 40 in,how much mAs should be used to maintain exposure to the IR?

With film-screen imaging,what is the minimum change in mAs that would result in a visible change in radiographic density?

Increasing the kVp will _________ the IR exposure and density produced on the film image.

With all other factors remaining the same,a patient with which body habitus would require the highest exposure factors?

With film-screen imaging,which of the following technique factors will produce an image with the greatest density?

With film-screen imaging,an abdomen image is done using 60 kVp and 30 mAs.Image density is appropriate,but the image has too high (short scale)contrast.Which of these exposure factors would be the best change to make?

Changes in kVp do not affect the digital exposure indicator.

With film-screen imaging,if the kVp were decreased by 15% and no changes were made to the mAs:

With digital imaging,using twice as much mAs as needed will result in an image with _ brightness and ___ patient exposure.

With film-screen imaging,what would be the appropriate change in mAs if the kVp were decreased by 15% and the density needed to be maintained?

With film-screen imaging,decreasing collimation (using a larger field size)results in image contrast and patient exposure.

Radiation and Its Discovery

The X-Ray Beam

Image Formation and Radiographic Quality

Digital Imaging

Film-Screen Imaging

Scatter Control

Exposure Technique Selection

Image Evaluation

Dynamic Imaging: Fluoroscopy

Filters

Exam 6: Exposure Technique Factors

What effect will increasing SID have on recorded detail?

If a person stands 12 feet from the source of exposure,receives an exposure of 60 mR,and then moves to 3 feet from the source of exposure,what would be the new exposure according to the inverse square law?

The misrepresentation of the size of an object is:

With film-screen imaging,what is the primary controller of image contrast?

What effect does the level of mAs have on image brightness when using digital image receptors?

With digital imaging,if lower than needed kVp is set,the image will have _______________ brightness and _________________ quantum mottle.

Increased quantum noise is seen in a digital image with:

With digital imaging,the same mAs and kVp should be used for an AP lumbar spine and a lateral lumbar spine.

With film-screen imaging,for a given exposure technique,increasing part thickness decreases radiographic density.

If the first radiograph of a chest is done using 72 in and 12 mAs,and a second radiograph is done using 40 in,how much mAs should be used to maintain exposure to the IR?

With film-screen imaging,what is the minimum change in mAs that would result in a visible change in radiographic density?

Increasing the kVp will _________ the IR exposure and density produced on the film image.

With all other factors remaining the same,a patient with which body habitus would require the highest exposure factors?

With film-screen imaging,which of the following technique factors will produce an image with the greatest density?

With film-screen imaging,an abdomen image is done using 60 kVp and 30 mAs.Image density is appropriate,but the image has too high (short scale)contrast.Which of these exposure factors would be the best change to make?

Changes in kVp do not affect the digital exposure indicator.

With film-screen imaging,if the kVp were decreased by 15% and no changes were made to the mAs:

With digital imaging,using twice as much mAs as needed will result in an image with _______________ brightness and _________________ patient exposure.

With film-screen imaging,what would be the appropriate change in mAs if the kVp were decreased by 15% and the density needed to be maintained?

With film-screen imaging,decreasing collimation (using a larger field size)results in ____________image contrast and ____________ patient exposure.

Radiation and Its Discovery

The X-Ray Beam

Image Formation and Radiographic Quality

Digital Imaging

Film-Screen Imaging

Scatter Control

Exposure Technique Selection

Image Evaluation

Dynamic Imaging: Fluoroscopy

Filters

With digital imaging,if lower than needed kVp is set,the image will have _ brightness and ___ quantum mottle.

With digital imaging,using twice as much mAs as needed will result in an image with _ brightness and ___ patient exposure.

With film-screen imaging,decreasing collimation (using a larger field size)results in image contrast and patient exposure.