KETTERING: SAFETY: TEST QUESTIONS WITH ACCURATE
SOLUTIONS
1) Central nervous system death is likely to occur when radiation dose levels reach
___ rads or more.
A) 100
B) 500
C) 1000
D) 3000 -- Correct Answer ✔✔ D. 3000
2) Which of the following would be the least radiosensitive?
A) Third trimester fetus
B) 35-year old male
C) 65-year old female
D) 18-year old female -- Correct Answer ✔✔ C. 65-year old female
3) Which of the following would not be considered a high-risk examination for
females?
, A) Thoracic spine
B) Lumbar spine
C) Sacrum & coccyx
D) Hip & pelvis -- Correct Answer ✔✔ A. Thoracic spine
4) Which of the following dose response curves is the basic principle of radiation
protection in diagnostic radiography?
A) Linear-threshold response
B) Non-linear, threshold response
C) Linear, non-threshold response
D) Non-linear, non-threshold response -- Correct Answer ✔✔ C. Linear,
non-threshold response
5) Which of the following exposure factor combinations will result in the least
amount of radiation dose to the patient?
A) High kVp, high mAs
B) High kVp, low mAs
C) Low kVp, low mAs
D) Low, kVp, high mAs -- Correct Answer ✔✔ B. High kVp, low mAs
6) If 75 kVp and 50 mAs are used for a particular radiographic exposure, which of
the following techniques will decrease patient exposure by one-half?
A) 85 kVp and 50 mAs
B) 75 kVp and 25 mAs
C) 65 kVp and 50 mAs
D) 65 kVp and 100 mAs -- Correct Answer ✔✔ B. 75 kVp and 25 mAs
7) The glass envelope and cooling oil are examples of?
SOLUTIONS
1) Central nervous system death is likely to occur when radiation dose levels reach
___ rads or more.
A) 100
B) 500
C) 1000
D) 3000 -- Correct Answer ✔✔ D. 3000
2) Which of the following would be the least radiosensitive?
A) Third trimester fetus
B) 35-year old male
C) 65-year old female
D) 18-year old female -- Correct Answer ✔✔ C. 65-year old female
3) Which of the following would not be considered a high-risk examination for
females?
, A) Thoracic spine
B) Lumbar spine
C) Sacrum & coccyx
D) Hip & pelvis -- Correct Answer ✔✔ A. Thoracic spine
4) Which of the following dose response curves is the basic principle of radiation
protection in diagnostic radiography?
A) Linear-threshold response
B) Non-linear, threshold response
C) Linear, non-threshold response
D) Non-linear, non-threshold response -- Correct Answer ✔✔ C. Linear,
non-threshold response
5) Which of the following exposure factor combinations will result in the least
amount of radiation dose to the patient?
A) High kVp, high mAs
B) High kVp, low mAs
C) Low kVp, low mAs
D) Low, kVp, high mAs -- Correct Answer ✔✔ B. High kVp, low mAs
6) If 75 kVp and 50 mAs are used for a particular radiographic exposure, which of
the following techniques will decrease patient exposure by one-half?
A) 85 kVp and 50 mAs
B) 75 kVp and 25 mAs
C) 65 kVp and 50 mAs
D) 65 kVp and 100 mAs -- Correct Answer ✔✔ B. 75 kVp and 25 mAs
7) The glass envelope and cooling oil are examples of?