Question 1

To maintain the same exposure to the IR,if the SID is increased,the mAs must be

Accepted Answer

A)  decreased
B)  increased
C)  left the same
D)  doubledE) A) and B)
F) B) and D)

Question 2

Using a higher SID

Accepted Answer

A)  increases magnification
B)  decreases magnification
C)  increases size distortion
D)  none of the aboveE) B) and C)
F) None of the above

Question 3

Reducing the amount of scatter radiation reaching the IR results in

Accepted Answer

A)  lower radiographic contrast
B)  higher radiographic contrast
C)  improved recorded detail
D)  reduced recorded detailE) C) and D)
F) A) and C)

Question 4

Which type of body habitus is the thickest,requiring higher exposure factors?

Accepted Answer

A)  Asthenic.
B)  Hypersthenic.
C)  Sthenic.
D)  Hyposthenic.E) A) and D)
F) B) and D) B

Question 5

If 8 mAs produces an appropriate exposure to the IR with a single-phase generator,a three-phase generator should

Accepted Answer

A)  use higher mAs
B)  use lower mAs
C)  keep the mAs the same
D)  none of the aboveE) None of the above
F) All of the above

Question 6

To visualize soft tissue structures with film-screen imaging,the standard mAs should be

Accepted Answer

A)  increased
B)  decreased
C)  left the same
D)  doubledE) A) and C)
F) A) and D)

Question 7

Using 20 mAs on a knee image (digital IR) when only 8 mAs was needed to produce sufficient remnant radiation results in

Accepted Answer

A)  a dark image
B)  an image with appropriate brightness
C)  unnecessary patient radiation dose
D)  A and C
E)  B and CF) A) and E)
G) C) and D)

Question 8

If a film image has to be repeated because it is too dark or too light,the mAs must be changed by a factor of at least

Accepted Answer

A)  1
B)  2
C)  4
D)  30E) A) and C)
F) A) and D)

Question 9

What mA should be selected to produce 32 mAs using a 0.04 exposure time?

Accepted Answer

A)  128 ma.
B)  200 mA.
C)  400 mA.
D)  800 mA.E) B) and D)
F) None of the above

Question 10

At higher levels,kVp always decreases radiographic contrast.

Accepted Answer

A) True 
 B)False

Question 11

What type of relationship do mAs have with the quantity of x-rays produced?

Accepted Answer

A)  Direct proportional.
B)  Direct but not proportional.
C)  Inverse proportional.
D)  Inverse but not proportional.E) B) and C)
F) A) and D)

Question 12

The ________________ body habitus accounts for approximately 50% of the adult population.

Accepted Answer

A)  asthenic
B)  hypersthenic
C)  sthenic
D)  hyposthenicE) B) and C)
F) A) and B)

Question 13

What type of relationship does distance have with x-ray beam intensity?

Accepted Answer

A)  Direct proportional.
B)  Direct but not proportional.
C)  Inverse proportional.
D)  Inverse but not proportional.E) A) and D)
F) All of the above

Question 14

When OID cannot be reduced,it is possible to reduce size distortion by

Accepted Answer

A)  increasing mAs
B)  increasing SID
C)  using a small focal spot size
D)  decreasing SIDE) All of the above
F) A) and D)

Question 15

Which of the following is the correct formula to determine how mAs should be adjusted when different ratio grids are used?

Accepted Answer

A)  mAs₁/mAs₂ = grid conversion factor₂/grid conversion factor₁.
B)  mAs₁/mAs₂ = grid conversion factor₁/grid conversion factor₂.
C)  mAs₁/mAs₂ = (grid conversion factor₂) ²/(grid conversion factor₁) ².
D)  mAs₁/mAs₂ = (grid conversion factor₁) ²/(grid conversion factor₂) ²E) All of the above
F) A) and D)

Question 16

The device used to absorb scatter radiation in the radiation leaving the patient before it reaches the image receptor is the

Accepted Answer

A)  cassette
B)  intensifying screen
C)  grid
D)  filterE) C) and D)
F) A) and B)

Question 17

A lateral ankle position requires less exposure than an AP ankle projection because

Accepted Answer

A)  all lateral positions require less exposure
B)  all lateral positions require more exposure
C)  part thickness is greater from front to back
D)  part thickness is greater from side to sideE) A) and B)
F) None of the above

Question 18

If 400 mA @ 0.03 s produces a film image of a knee that is just a bit too light to see the bony structure,the exposure factors should be changed to

Accepted Answer

A)  200 mA @ 0.03 s
B)  200 mA @0.12 s
C)  400 mA @ 0.12 s
D)  400 mA @ 0.24 sE) All of the above
F) None of the above B

Question 19

Increasing tube filtration

Accepted Answer

A)  increases the beam energy
B)  decreases radiographic contrast
C)  increases radiographic contrast
D)  A and B
E)  A and CF) A) and C)
G) B) and C)

Question 20

Low kVp produces ______________ radiographic contrast and high kVp produces ____________ radiographic contrast.

Accepted Answer

A)  long-scale;long-scale
B)  long-scale;short-scale
C)  short-scale;long-scale
D)  short-scale;short-scaleE) All of the above
F) C) and D) C

Exam 10: Radiographic Exposure Technique

To maintain the same exposure to the IR,if the SID is increased,the mAs must be

Correct AnswerverifiedShow Answer

Using a higher SID

Correct AnswerverifiedShow Answer

Reducing the amount of scatter radiation reaching the IR results in

Correct AnswerverifiedShow Answer

Which type of body habitus is the thickest,requiring higher exposure factors?

Correct AnswerverifiedB

If 8 mAs produces an appropriate exposure to the IR with a single-phase generator,a three-phase generator should

Correct AnswerverifiedShow Answer

To visualize soft tissue structures with film-screen imaging,the standard mAs should be

Correct AnswerverifiedShow Answer

Using 20 mAs on a knee image (digital IR) when only 8 mAs was needed to produce sufficient remnant radiation results in

Correct AnswerverifiedShow Answer

If a film image has to be repeated because it is too dark or too light,the mAs must be changed by a factor of at least

Correct AnswerverifiedShow Answer

What mA should be selected to produce 32 mAs using a 0.04 exposure time?

Correct AnswerverifiedShow Answer

At higher levels,kVp always decreases radiographic contrast.

Correct AnswerverifiedShow Answer

What type of relationship do mAs have with the quantity of x-rays produced?

Correct AnswerverifiedShow Answer

The ________________ body habitus accounts for approximately 50% of the adult population.

Correct AnswerverifiedShow Answer

What type of relationship does distance have with x-ray beam intensity?

Correct AnswerverifiedShow Answer

When OID cannot be reduced,it is possible to reduce size distortion by

Correct AnswerverifiedShow Answer

Which of the following is the correct formula to determine how mAs should be adjusted when different ratio grids are used?

Correct AnswerverifiedShow Answer

The device used to absorb scatter radiation in the radiation leaving the patient before it reaches the image receptor is the

Correct AnswerverifiedShow Answer

A lateral ankle position requires less exposure than an AP ankle projection because

Correct AnswerverifiedShow Answer

If 400 mA @ 0.03 s produces a film image of a knee that is just a bit too light to see the bony structure,the exposure factors should be changed to

Correct AnswerverifiedB

Increasing tube filtration

Correct AnswerverifiedShow Answer

Low kVp produces ______________ radiographic contrast and high kVp produces ____________ radiographic contrast.

Correct AnswerverifiedC

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B

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B

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Low kVp produces __ radiographic contrast and high kVp produces radiographic contrast.

Correct Answer
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C