RADIATION SAFETY TEST 1 STUDY
GUIDE QUESTIONS AND ANSWERS
The largest source of human exposure to man-made radiation? - Answer-Medical
Diagnostic X-Ray
ionizing electromagnetic radiation - Answer-gamma rays
One collimates primarily to - Answer-Reduce patient dose
Internal radiation exposure is principally due to which of the following isotopes? -
Answer-Potassium-40
The phosphor that Roentgen employed in early experiments with x rays was which of
the following? - Answer-Barium plantinocyanide
type of x ray tube used today? - Answer-Coolidge tube
Which of the following regarding xray induced death is true? - Answer-Clarence Dally
was the 1st American to die of x ray exposure
One of the cardinal principles of radiation protection states that the rad. tech. should
minimize - Answer-Time
What is the principal reason to avoid repeat examinations? - Answer-patient receives
twice the radiation dose
The x ray beam should scatter at least how many times before reaching the operator? -
Answer-2 times
The maximum leakage from a diagnostic x ray tube must not exceed _____ at a
distance of 3 feet or 1 meter - Answer-1 mGy/hr
The main property of x-radiation that makes it potentially hazardous is its ability to: -
Answer-Ionize
Which of the following groups benefits from the "as low as reasonably achievable"
(ALARA) principle as set forth by the National Council on Radiation Protection and
Measurement (NCEP)?
1. General public
2. Patient
3. Radiographers/operators - Answer-1,2,&3
GUIDE QUESTIONS AND ANSWERS
The largest source of human exposure to man-made radiation? - Answer-Medical
Diagnostic X-Ray
ionizing electromagnetic radiation - Answer-gamma rays
One collimates primarily to - Answer-Reduce patient dose
Internal radiation exposure is principally due to which of the following isotopes? -
Answer-Potassium-40
The phosphor that Roentgen employed in early experiments with x rays was which of
the following? - Answer-Barium plantinocyanide
type of x ray tube used today? - Answer-Coolidge tube
Which of the following regarding xray induced death is true? - Answer-Clarence Dally
was the 1st American to die of x ray exposure
One of the cardinal principles of radiation protection states that the rad. tech. should
minimize - Answer-Time
What is the principal reason to avoid repeat examinations? - Answer-patient receives
twice the radiation dose
The x ray beam should scatter at least how many times before reaching the operator? -
Answer-2 times
The maximum leakage from a diagnostic x ray tube must not exceed _____ at a
distance of 3 feet or 1 meter - Answer-1 mGy/hr
The main property of x-radiation that makes it potentially hazardous is its ability to: -
Answer-Ionize
Which of the following groups benefits from the "as low as reasonably achievable"
(ALARA) principle as set forth by the National Council on Radiation Protection and
Measurement (NCEP)?
1. General public
2. Patient
3. Radiographers/operators - Answer-1,2,&3
