800 Technical X-Ray Physics Reference Modules: Machine Calibration Self-Assessment Toolkit

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ARRT RADIOGRAPHY EXAM QUESTION BANK
2025/2026 ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALL ANSWERED {800 Q & A}
ALREADY GRADED A+/ ARRT RADIOGRAPHY
EXAM REVIEW | BRAND NEW!



*Study guide for the ARRT exam in radiography.* *Anatomy and
positioning are not covered in this study guide.*


An anode rotates anywhere from ________ to ________ rpm. - ✔✔✔
Correct Answer > 1) 3300

2) 10000


Film badges are usually changed ________. - ✔✔✔ Correct Answer >
Monthly


A ________ is used to measure radiation in an area, storage areas
for radioisotopes, doses traveling through barriers, and patients
who have radioactive sources within them. - ✔✔✔ Correct Answer >
Handheld Ionization Chamber

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Electrons from the photocathode are concentrated and directed
toward the other end of the image-intensifier tube by a series of
________ and by ________ kVp applied through the tube. - ✔✔✔ Correct
Answer > 1) Electrostatic Lenses (Focusing Lenses)

2) 25


Handheld ionization chambers can measure exposure rates as
low as ________ per hour. - ✔✔✔ Correct Answer > 10 µGyᵃ


A ________ is used to detect radioactive particles in nuclear
medicine facilities. - ✔✔✔ Correct Answer > Geiger-Mueller Detector


Geiger-Mueller detectors read in ________ per minute. - ✔✔✔ Correct
Answer > Counts




An autotransformer is also known as a ________ transformer. -
✔✔✔ Correct Answer > Variable




An autotransformer is constructed with: - ✔✔✔ Correct Answer > A
single coil of wire with an iron core.


The autotransformer is the source for selecting ________. - ✔✔✔
Correct Answer > kVp

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Autotransformers operate on the principle of ________. - ✔✔✔
Correct Answer > Self-Induction




The ________ is in the x-ray circuit to indicate the voltage that is
selected. - ✔✔✔ Correct Answer > Prereading Voltmeter


The prereading voltmeter is prereading because it indicates the
________ that will be flowing through the tube once the exposure
is made. - ✔✔✔ Correct Answer > Kilovoltage


The prereading voltmeter is placed in the circuit between the
________ and the ________. - ✔✔✔ Correct Answer > 1) Autotransformer
2) Step-Up Transformer


A ________ is used to regulate the duration of the x-ray exposure.
- ✔✔✔ Correct Answer > Timer




The timer is wired in the circuit between the ________ and the
________. - ✔✔✔ Correct Answer > 1) Autotransformer
2) Step-Up Transformer


Electronic timers allow exposures as low as ________. - ✔✔✔ Correct
Answer > 1 ms or 1/1000 second.

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The ________ provides the safest tube current in the shortest
possible time. - ✔✔✔ Correct Answer > mAs Timer


The mAs timer measures the total ________. - ✔✔✔ Correct Answer >
Tube Current


The mAs timer is located ________ the secondary coil of the step-
up transformer. - ✔✔✔ Correct Answer > After


The mAs timer is generally used with ________ generators. - ✔✔✔
Correct Answer > Falling Load




________ is used to provide consistency of radiographic quality. -
✔✔✔ Correct Answer > Automatic Exposure Control (AEC)




AEC consists of a flat ________ chamber that is located between
the ________ and the ________. - ✔✔✔ Correct Answer > 1) Ionization
2) Patient
3) Image Receptor


AEC uses a ________ kVp, while the machine controls the ________.
- ✔✔✔ Correct Answer > 1) Fixed