LRA 222 Week 3 Quiz Questions With Correct Answers.

LRA 222 Week 3 Quiz Questions With
Correct Answers

1. |When |the |x-ray |beam |is |angled |across |the |lead |strips |you |have |_________ |cutoff

A. |off-level

B. |off-center

C. |off-focus

D. |upside-down |focused |- |CORRECT |ANSWER✔✔-A. |off-level



2. |Absorption |of |transmitted |photons |by |a |grid |caused |by |misalignment |is

A. |grid |reduction

B. |transmission |reduction

C. |grid |focus

D. |grid |cutoff |- |CORRECT |ANSWER✔✔-D. |grid |cutoff



3. |When |using |automatic |collimation, |collimating |to |the |anatomy |of |interest |is |an |unnecessary
|waste |of |time; |the |beam |is |already |collimated



A. |True

B. |False |- |CORRECT |ANSWER✔✔-B. |False



4. |The |relationship |between |the |height |of |the |lead |strips |and |the |distance |between |them |is |
the |grid

A. |frequency

B. |ratio

C. |number

, D. |rating |- |CORRECT |ANSWER✔✔-B. |ratio



5. |A |flat |piece |of |lead |with |a |hole |in |it |that |has |a |flange |directed |toward |the |patient |is |a(n)

A. |cone |or |cylinder

B. |aperture |diaphragm

C. |none |of |these

D. |collimator |- |CORRECT |ANSWER✔✔-A. |cone |or |cylinder



6. |The |field |shape |produced |by |a |collimator |is

A. |rectangular

B. |round

C. |all |of |these

D. |oval |- |CORRECT |ANSWER✔✔-A. |rectangular



7. |Anyone |in |the |room |during |an |exposure |must |wear |a |lead |apron |to |absorb |the |scatter |
radiation |produced |in |the

A. |air

B. |table

C. |beam

D. |patient |- |CORRECT |ANSWER✔✔-D. |patient



8. |If |all |the |convergent |points |were |connected |along |the |length |of |the |grid |they |would |form |
the

A. |convergent |line

B. |focal |distance

C. |focal |range

D. |convergent |point |- |CORRECT |ANSWER✔✔-A. |convergent |line