SCDA Radiation Safety Exam 2025-
2026 Questions and Verified Answers
100% Pass
Who discovered the X-ray? – CORRECT ANSWER Wilhelm Rontgen
What can X-rays identify? – CORRECT ANSWER Decay damage, change in bone patterns,
impacted teeth, cysts, and tumors
X rays are a form of what? – CORRECT ANSWER Ionizing radiation
We can't see or feel this energy but as it moves through the body, it disrupts atoms in
its path, causing them to separate into ions – CORRECT ANSWER Ionizing Radiation
Too much ionization can cause what? – CORRECT ANSWER Sickness, cancer, birth
defects, and even death.
T or F: Radiation damage happens immediately. – CORRECT ANSWER FALSE. Radiation
damage is cumulative.
T or F: Any amount of radiation may produce some damage in a person's body –
CORRECT ANSWER TRUE
T or F: Long term effects of radiation may take days to develop – CORRECT ANSWER
FALSE. Long term effects take years to develop.
How much radiation should a person limit themselves to? – CORRECT ANSWER
Maximum Permissible Dose (MPD guidelines) for general population, radiation workers,
and pregnant women
2026 Questions and Verified Answers
100% Pass
Who discovered the X-ray? – CORRECT ANSWER Wilhelm Rontgen
What can X-rays identify? – CORRECT ANSWER Decay damage, change in bone patterns,
impacted teeth, cysts, and tumors
X rays are a form of what? – CORRECT ANSWER Ionizing radiation
We can't see or feel this energy but as it moves through the body, it disrupts atoms in
its path, causing them to separate into ions – CORRECT ANSWER Ionizing Radiation
Too much ionization can cause what? – CORRECT ANSWER Sickness, cancer, birth
defects, and even death.
T or F: Radiation damage happens immediately. – CORRECT ANSWER FALSE. Radiation
damage is cumulative.
T or F: Any amount of radiation may produce some damage in a person's body –
CORRECT ANSWER TRUE
T or F: Long term effects of radiation may take days to develop – CORRECT ANSWER
FALSE. Long term effects take years to develop.
How much radiation should a person limit themselves to? – CORRECT ANSWER
Maximum Permissible Dose (MPD guidelines) for general population, radiation workers,
and pregnant women
