RAD BIO EXAM 1 QUESTIONS WITH
CORRECT ANSWERS 2026
Which of the following is NOT a consequence of ionization in human cells?
A. Creation of free electrons and stable atoms
B. Creation of new biological molecules detrimental to the living cell
C. Creation of abnormal cell function
D. Creation of free radicals capable of producing substances poisonous to the cell - CORRECT
ANSWER-A
Good practices of radiologic technologists and radiologists include all of the following,
EXCEPT:
A. being educated on the safe operation of radiation producing imaging equipment
B. selecting appropriate technical exposure factors
C. using protective devices as much as possible
D. creating new radiation safety policies when necessary - CORRECT ANSWER-D
The need to safeguard against significant and continuing radiation is based on which of the
following?
A. evidence of harmful biological effects
B. radiation is known to cause cancer
C. current studies by radiation physicists
D. evidence of beneficial radiation effects (hormesis) - CORRECT ANSWER-A
Why is it important to keep radiation exposure as low as reasonably achievable?
A. to compare the amount of radiation used in different facilities
B. dose limits have been established for amount of radiation a patient may receive for an imaging
study
, C. radiation induced cancer does not have a fixed threshold
D. radiation induced cancer has a dose level below which individuals have no risk of developing
cancer - CORRECT ANSWER-C
Which of these is the definition of risk with reference to radiation science?
A. the possibility of inducing radiogenic cancer or genetic defect after irradiation
B. the benefit of an imaging procedure must be greater than the minimal risk of possible damage
after irradiation
C. the patient is responsible for assuming the small possibility of genetic damage after irradiation
D. the probability of injury, ailment, or death after irradiation - CORRECT ANSWER-A
Approximately how many days in natural surroundings would be equivalent to the radiation
received from a chest X-ray?
A. 1 week
B. 20 days
C. 2 weeks
D. 10 days - CORRECT ANSWER-D
Which of the following is NOT suggested as a way of providing patient and community
education?
A. providing a website with basic radiation exposure information
B. Providing brochures that describe imaging procedures in simple terms
C. Using a card to record and track a person's radiation exposure
D. using a standardized medical record number to track a patient's radiation exposure -
CORRECT ANSWER-D
Which of the following programs creates greater awareness of radiation doses?
A. Background Effective Dose Equivalent Radiation Time Program
B. As Low as Reasonable Achievable Program
CORRECT ANSWERS 2026
Which of the following is NOT a consequence of ionization in human cells?
A. Creation of free electrons and stable atoms
B. Creation of new biological molecules detrimental to the living cell
C. Creation of abnormal cell function
D. Creation of free radicals capable of producing substances poisonous to the cell - CORRECT
ANSWER-A
Good practices of radiologic technologists and radiologists include all of the following,
EXCEPT:
A. being educated on the safe operation of radiation producing imaging equipment
B. selecting appropriate technical exposure factors
C. using protective devices as much as possible
D. creating new radiation safety policies when necessary - CORRECT ANSWER-D
The need to safeguard against significant and continuing radiation is based on which of the
following?
A. evidence of harmful biological effects
B. radiation is known to cause cancer
C. current studies by radiation physicists
D. evidence of beneficial radiation effects (hormesis) - CORRECT ANSWER-A
Why is it important to keep radiation exposure as low as reasonably achievable?
A. to compare the amount of radiation used in different facilities
B. dose limits have been established for amount of radiation a patient may receive for an imaging
study
, C. radiation induced cancer does not have a fixed threshold
D. radiation induced cancer has a dose level below which individuals have no risk of developing
cancer - CORRECT ANSWER-C
Which of these is the definition of risk with reference to radiation science?
A. the possibility of inducing radiogenic cancer or genetic defect after irradiation
B. the benefit of an imaging procedure must be greater than the minimal risk of possible damage
after irradiation
C. the patient is responsible for assuming the small possibility of genetic damage after irradiation
D. the probability of injury, ailment, or death after irradiation - CORRECT ANSWER-A
Approximately how many days in natural surroundings would be equivalent to the radiation
received from a chest X-ray?
A. 1 week
B. 20 days
C. 2 weeks
D. 10 days - CORRECT ANSWER-D
Which of the following is NOT suggested as a way of providing patient and community
education?
A. providing a website with basic radiation exposure information
B. Providing brochures that describe imaging procedures in simple terms
C. Using a card to record and track a person's radiation exposure
D. using a standardized medical record number to track a patient's radiation exposure -
CORRECT ANSWER-D
Which of the following programs creates greater awareness of radiation doses?
A. Background Effective Dose Equivalent Radiation Time Program
B. As Low as Reasonable Achievable Program
