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Supervisor and Operator Rad Exam Questions and Correct Answers the Latest Update and Recommended Version

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Which of the following occur minutes to hours after exposure to ionizing radiation? 1.) functional damage & morphological changes 2.) Appearance of atypical cells 3.) Cataract formation → 1 & 2 If the operator stands behind a portable shield, which may allow scattered radiation to pass aro...

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  • October 20, 2024
  • 121
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Supervisor and Operator
  • Supervisor and Operator
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2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!


Supervisor and Operator Rad Exam
Questions and Correct Answers the Latest
Update and Recommended Version
Which of the following occur minutes to hours after exposure to ionizing radiation?




1.) functional damage & morphological changes

2.) Appearance of atypical cells

3.) Cataract formation

→ 1&2


If the operator stands behind a portable shield, which may allow scattered radiation to pass

around it's edges; total radiation dose reduction would be approximately:

a.) 50%

b.) 75%

c.) 92%

d.) 99%


→ 99%


Which of the following are SHORT TERM stepwise effects of radiation exposure?

1.) life-span shortening

2.) primary radiochemical reactions

3.) functional damage of cells



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,2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!




A.) 1 and 2

b.) 1 and 3

c.) 2 and 3

d.) 1, 2, and 3

→ C. 2 and 3


Limited permit X-ray technicians are excluded from:




A.) taking plain radiographs of the extremities

B.) operating portable or mobile X-ray equipment

C.) taking plain radiographs of the chest

d.) all of the above

→ B.) operating portable or mobile X-ray equipment


An example of a radiographic study using natural shielding to decrease radiation to the

ovaries is:

A.) AP T/S

b.) AP pelvis

c.) lateral femur

d.) PA lumbar spine




1|Page| GradeA+ | 2 0 0 2 5

,2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!

→ d.) PA Lumbar Spine


Which of the following is part of the x-ray tube anode?




1.) positive electrode

2.) negative electrode

3.) target

→ 1 and 3.


Which electron interaction with the anode causes x-ray beam to be polygenergetic?




A.) characteristic

b.) Compton

c.) pair production

d.) Bremsstrahlung

→ d.) Bremsstrahlung


What happens to the nominal focal spot size as the x-ray tube target (anode) decreases?




A.) decreases

B.) stays the same

c.) increases



1|Page| GradeA+ | 2 0 0 2 5

, 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!

d.) inverts

→ a.) decreases


Which of the following will reduce patient radiation dose?




a.) increased thickness of the alum. tabletop

b.) use more radio-absorbent cassette fronts

c.) use KEVLAR cassette fronts

d.) increase grid ratio

→ ?? Look up see page?


What accounts for most of the repeated radiographs (retakes/repeats) today?




a.) incorrect film storage

b.) incorrect selection of PRIMARY FACTORS

c.) lack of collimation

d.) incorrect film processing

→ b.) incorrect selection of PRIMARY FACTORS


0.5 mm lead equivalent gonad shields placed over the ovaries/testes reduce radiation dose

to the gonads approximately ______%




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