Question 1

With film-screen imaging,when mAs is increased,density is _____________; when mAs is decreased,density is _____________.

Accepted Answer

A)  increased; increased 
B)  increased; decreased 
C)  decreased; decreased 
D)  decreased; increased 
A)  increased; increased 
B)  increased; decreased 
C)  decreased; decreased 
D)  decreased; increased

Question 2

The distance between the object being radiographed and the IR is the:

Accepted Answer

A)  magnification factor. 
B)  SID. 
C)  OID. 
D)  SOD. 
A)  magnification factor. 
B)  SID. 
C)  OID. 
D)  SOD.

Question 3

During selection of the focal spot size,the radiographer is really determining the:

Accepted Answer

A)  angle of the anode used. 
B)  actual size of the filament used. 
C)  energy of electrons available for tube current. 
D)  distance the electrons travel from cathode to anode. 
A)  angle of the anode used. 
B)  actual size of the filament used. 
C)  energy of electrons available for tube current. 
D)  distance the electrons travel from cathode to anode.

Question 4

Once the part has been penetrated,a doubling of the mAs results in ____________ the exposure to the IR.

Accepted Answer

A)  one fourth 
B)  one half 
C)  two times 
D)  four times 
A)  one fourth 
B)  one half 
C)  two times 
D)  four times

Question 5

Which of the following technical factors affects the exposure to the IR by altering the amount and penetrating ability of the x-ray beam?

Accepted Answer

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

Question 6

When a film-screen image needs to be repeated because it is too dark,the minimum change in mAs needed is:

Accepted Answer

A)  reduce the mAs by 30%. 
B)  reduce the mAs by 50%. 
C)  increase the mAs by 30%. 
D)  increase the mAs by a factor of two. 
A)  reduce the mAs by 30%. 
B)  reduce the mAs by 50%. 
C)  increase the mAs by 30%. 
D)  increase the mAs by a factor of two.

Question 7

Which of the following mA and exposure time combinations does not produce 12 mAs?

Accepted Answer

A)  200 mA at 0.06 s 
B)  400 mA at 0.03 s 
C)  600 mA at 20 ms 
D)  800 mA at 0.15 s 
A)  200 mA at 0.06 s 
B)  400 mA at 0.03 s 
C)  600 mA at 20 ms 
D)  800 mA at 0.15 s

Question 8

In order to see the effect of changing kVp,a greater change is needed when operating at low kVp as compared to high kVp.

Accepted Answer

A) True 
 B)False

Question 9

The radiographic grid is located:

Accepted Answer

A)  inside the x-ray tube. 
B)  between the tube and patient. 
C)  between the patient and the IR. 
D)  beneath the IR. 
A)  inside the x-ray tube. 
B)  between the tube and patient. 
C)  between the patient and the IR. 
D)  beneath the IR.

Question 10

As compared to a patient with a 24 cm thick abdomen,imaging a patient with a 20 cm thick abdomen will result in _____________ scatter being produced and ______________ image contrast.

Accepted Answer

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

Question 11

Assuming all produce appropriate density images,which of the following would be the best exposure technique choice when performing a chest radiograph on an infant?

Accepted Answer

A)  Use 40 ms exposure time. 
B)  Use 60 ms exposure time. 
C)  Use 200 ms exposure time. 
D)  Use at least 80 kVp. 
A)  Use 40 ms exposure time. 
B)  Use 60 ms exposure time. 
C)  Use 200 ms exposure time. 
D)  Use at least 80 kVp.

Question 12

A quality radiograph is done using 10 mAs,70 kVp,and a 12:1 ratio grid.How much mAs is needed to produce an image with the same exposure to the IR when the grid is removed?

Accepted Answer

A)  2 mAs 
B)  5 mAs 
C)  15 mAs 
D)  50 mAs 
A)  2 mAs 
B)  5 mAs 
C)  15 mAs 
D)  50 mAs

Question 13

The property of the x-ray beam that impacts the unsharpness on the radiograph is beam:

Accepted Answer

A)  quality. 
B)  quantity. 
C)  divergence. 
D)  restriction. 
A)  quality. 
B)  quantity. 
C)  divergence. 
D)  restriction.

Question 14

As mAs increases,the quantity of radiation reaching the IR ____________________.

Accepted Answer

A)  increases 
B)  decreases 
C)  is not affected 
A)  increases 
B)  decreases 
C)  is not affected

Question 15

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

Accepted Answer

A)  300 mA, 0.2 s 
B)  400 mA, 0.2 s 
C)  100 mA, 1 s 
D)  800 mA, 0.001 s 
A)  300 mA, 0.2 s 
B)  400 mA, 0.2 s 
C)  100 mA, 1 s 
D)  800 mA, 0.001 s

Question 16

If the image size measures 4.6 in,and the magnification factor is 1.42,what is the size of the object?

Accepted Answer

A)  2.43 in 
B)  3.24 in 
C)  5.63 in 
D)  6.53 in 
A)  2.43 in 
B)  3.24 in 
C)  5.63 in 
D)  6.53 in

Question 17

The SOD can be determined by:

Accepted Answer

A)  adding SID and OID. 
B)  adding the MF to the OID. 
C)  subtracting the OID from SID. 
D)  subtracting the SID from the MF. 
A)  adding SID and OID. 
B)  adding the MF to the OID. 
C)  subtracting the OID from SID. 
D)  subtracting the SID from the MF.

Question 18

For film-screen imaging,density is controlled by:

Accepted Answer

A)  mA. 
B)  exposure time. 
C)  mAs. 
D)  all of the above. 
A)  mA. 
B)  exposure time. 
C)  mAs. 
D)  all of the above.

Question 19

Any increase in magnification results in a decrease in recorded detail.

Accepted Answer

A) True 
 B)False

Question 20

Shape distortion can be created by:

Accepted Answer

A)  off-centering the central ray. 
B)  angling the central ray. 
C)  increasing the SID. 
D)  A and B only. 
A)  off-centering the central ray. 
B)  angling the central ray. 
C)  increasing the SID. 
D)  A and B only.

With film-screen imaging,when mAs is increased,density is _; when mAs is decreased,density is _.

The distance between the object being radiographed and the IR is the:

During selection of the focal spot size,the radiographer is really determining the:

Once the part has been penetrated,a doubling of the mAs results in ____________ the exposure to the IR.

Which of the following technical factors affects the exposure to the IR by altering the amount and penetrating ability of the x-ray beam?

When a film-screen image needs to be repeated because it is too dark,the minimum change in mAs needed is:

Which of the following mA and exposure time combinations does not produce 12 mAs?

In order to see the effect of changing kVp,a greater change is needed when operating at low kVp as compared to high kVp.

The radiographic grid is located:

As compared to a patient with a 24 cm thick abdomen,imaging a patient with a 20 cm thick abdomen will result in _ scatter being produced and __ image contrast.

Assuming all produce appropriate density images,which of the following would be the best exposure technique choice when performing a chest radiograph on an infant?

A quality radiograph is done using 10 mAs,70 kVp,and a 12:1 ratio grid.How much mAs is needed to produce an image with the same exposure to the IR when the grid is removed?

The property of the x-ray beam that impacts the unsharpness on the radiograph is beam:

As mAs increases,the quantity of radiation reaching the IR ____________________.

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

If the image size measures 4.6 in,and the magnification factor is 1.42,what is the size of the object?

The SOD can be determined by:

For film-screen imaging,density is controlled by:

Any increase in magnification results in a decrease in recorded detail.

Shape distortion can be created by:

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

With film-screen imaging,when mAs is increased,density is _____________; when mAs is decreased,density is _____________.

The distance between the object being radiographed and the IR is the:

During selection of the focal spot size,the radiographer is really determining the:

Once the part has been penetrated,a doubling of the mAs results in ____________ the exposure to the IR.

Which of the following technical factors affects the exposure to the IR by altering the amount and penetrating ability of the x-ray beam?

When a film-screen image needs to be repeated because it is too dark,the minimum change in mAs needed is:

Which of the following mA and exposure time combinations does not produce 12 mAs?

In order to see the effect of changing kVp,a greater change is needed when operating at low kVp as compared to high kVp.

The radiographic grid is located:

As compared to a patient with a 24 cm thick abdomen,imaging a patient with a 20 cm thick abdomen will result in _____________ scatter being produced and ______________ image contrast.

Assuming all produce appropriate density images,which of the following would be the best exposure technique choice when performing a chest radiograph on an infant?

A quality radiograph is done using 10 mAs,70 kVp,and a 12:1 ratio grid.How much mAs is needed to produce an image with the same exposure to the IR when the grid is removed?

The property of the x-ray beam that impacts the unsharpness on the radiograph is beam:

As mAs increases,the quantity of radiation reaching the IR ____________________.

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

If the image size measures 4.6 in,and the magnification factor is 1.42,what is the size of the object?

The SOD can be determined by:

For film-screen imaging,density is controlled by:

Any increase in magnification results in a decrease in recorded detail.

Shape distortion can be created by:

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 film-screen imaging,when mAs is increased,density is _; when mAs is decreased,density is _.

As compared to a patient with a 24 cm thick abdomen,imaging a patient with a 20 cm thick abdomen will result in _ scatter being produced and __ image contrast.