Supervisor and Operator Rad Exam Latest Update Exam 400 Questions with 100% Verified Correct Answers Guaranteed A+

Supervisor and Operator Rad Exam Latest
Update 2025-2026 Exam 400 Questions with
100% Verified Correct Answers Guaranteed A+

- CORRECT ANSWER: A radiation worker accidentally receives 10 Sv full-body X-
radiation dose. How many rads did he receive?


A. 1

B. 10

C. 50

D. 1,000



- CORRECT ANSWER: The optical density that would result if an unexposed film were
processed through the fixer, washer, and dryer, WITHOUT FIRST PASSING through the
DEVELOPER is termed:



A. base density

B. base plus fog density

C. mid density
D. density difference



-Processor sensitometer/densitometer evaluation

-Tank level check, clean-up film, cleaning of crossover roll-overs

-Developer & Fixer REPLENISHMENT rate

- Wash Water & Developer TEMPERATURE

-water filters
-processor stand-by units - CORRECT ANSWER: Which items need to be checked
DAILY for Quality Control?

,(9) Hint: replenishment rates and temperatures.



. all of the above - CORRECT ANSWER: Which of the following factors determine the
quantity of scatter radiation?

1. kVp

2. part thickness

3. field size
4. tissue density

5. all of the above


+/_ 10 percent - CORRECT ANSWER: In terms of Photo-timer reproducibility:

The density of all patient equivalent phantom films should be within ___________of the
average density of all the films.



0.25 and 2.50 optical density - CORRECT ANSWER: What is the DENSITY
DIFFERENCE {usually measured between ________ and ________ (O.D) above the
base-fog-level}



0.5 mm lead equivalent gonad shields placed over the ovaries/testes reduce radiation
dose to the gonads approximately ______%


a.) 55%

b.) 80%

c.) 92%
d.) 100% - CORRECT ANSWER: c.) 92% (verify)



0.5 rem (or 5mSV) - CORRECT ANSWER: Due to occupational exposure a declared
pregnant woman she not ever exceed: ________

,0.5-2.5 O.D. - CORRECT ANSWER: What should the photographic process OPTICAL
DENSITY (O.D.) value range fall within?



1. 70%

2. gonad dose - CORRECT ANSWER: 1. X-ray examinations of the ABD region account
for 25% of all radiography, but contribute over ___% of the GSD.

2. What is GSD?



1. annually
2. The amount of inherent filtration in the X-ray beam by the thickness HVL

3. DOSIMETER, 1100 aluminum sheets - CORRECT ANSWER: 1. How often should
you test the (FILTRATION) HVL?
2. What is this measured?

3. What is the test device?



1. Base-plus fog density

2. Mid-density (around 1.0 optical density)

3. Density difference (btw: 0.25-2.50) above - CORRECT ANSWER: What 3 items
should be monitored by the Processor Quality Control program?



1. c. their MITOTIC activity is higher
2. Law of Bergonie & Tribondeau - CORRECT ANSWER: 1. What is the reason why
children generally would be more sensitive to the effects of radiation?


A. their bodies are smaller

b. their body parts are thinner

c. their MITOTIC activity is higher

d. they are not as capable of cooperation

, 2.What is the name of the LAW that states this is true?



1. decreases - CORRECT ANSWER: What happens to the focal spot as the x-ray tube
target angle decreases?

1. decreases

2. stays the same

3. increases


1. localized
2. damage

3. artifacts (LIGHT SPOTS) - CORRECT ANSWER: 1. If a warped CASSETTES
produces __________ unsharpness on the finished radiographs.

2. Even a small fingernail mark may ________ screens.

3. What can DEVELOPER SOLUTION or cigarette ashes produce on the radiographs?



1. low
2.TRUE

3. a. protective apparel and a dosimeter - CORRECT ANSWER: 1. Are the operator
exposures from the CT examinations very low or high?
2. Is the CT beam well collimated. T/F

3. If the operator is required to stay in the room during scanning, what 2 items should be
worn?



1. On the order of ONE to SEVERAL RADS.

2. planar radiography which is in the millirad range. - CORRECT ANSWER: 1. How
much is the patient skin dose for CT examinations usually?

2. What does this compare to?


1. proper collimation