ACTUAL EXAM QUESTIONS WITH 100% RATED CORRECT ANSWERS
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Which of the following is the unit of absorbed radiation dose: - (Correct Answer)Gray, measure
amount of energy transferred from x-ray beam to the body
Which of the following personnel monitoring devices is capable of providing an immediate
reading: - (Correct Answer)pocket dosimeter, pen like object you hold up to the light
Of the following types of radiation, which one is considered the most ionizing: - (Correct
Answer)alpha, large and easy to ionize
心的坚强决定了我们的命运。当
The Geiger counter is capable of detecting which of the following types of radiation: - (Correct
Answer)x-rays, gamma rays, beta我们面对挫折时,是一颗不屈的
particles
心让我们勇敢前行
The time it takes for a radioactive material to have 1/2 of its atoms disintegrate is known as what:
- (Correct Answer)half-life
How many milligram in one gray: - (Correct Answer)1000
While wearing a lead apron where should the radiation monitor be worn: - (Correct Answer)on
the collar, outside the apron
Which of the following would be considered natural background radiation: - (Correct
Answer)cosmic rays, alpha particles
The reduction of the intensity of radiation as it passes through a material known as: - (Correct
Answer)attenuation
, Which of the following is the least expensive type of radiation monitoring: - (Correct
Answer)film badge
Which of the following is the unit of exposure dose of gamma, x-rays: - (Correct
Answer)coulomb per kilogram (C/kg)
Which of the following timers is used to accurately and automatically reproduce radiographic
exposures: - (Correct Answer)phototimer
Radiation monitoring instruments depend on which of the following: - (Correct
Answer)ionization
Which of the following radiation monitoring devices is considered to be the most accurate: -
心的坚强决定了我们的命运。当
(Correct Answer)optically stimulated luminescence dosimeter (OSL) accurate to 10
millieseiverts 我们面对挫折时,是一颗不屈的
心让我们勇敢前行
Which of the following describes an Alpha particles: - (Correct Answer)2 protons, 2 neutrons
The allowable occupational radiation dosage that is assumed to result in an average nominal
lifetime risk is known as what: - (Correct Answer)effective dose limit
How many half-value layers are required to reduce a 100 R/minute exposure rate to 25 R/minute:
- (Correct Answer)2 - 100 is reduced to 50
Which of the following interactions will occur in the diagnostic x-ray range: - (Correct
Answer)coherent (classical) scatter, Compton scatter, photoelectric scatter
Which of the following refers to measuring the quantity of an x-ray beam: - (Correct
Answer)dosimetry