Radiologic Technologist HESI Practice EXAM TEST 2026 2027 COMPLETE VERIFIED QUESTIONS AND WELL ELABORATED ANSWERS (A NEW UPDATED VERSION) |ALREADY GRADED A+ LATEST UPDATE

Radiologic Technologist HESI Practice EXAM TEST 2026-
2027 COMPLETE VERIFIED QUESTIONS AND WELL
ELABORATED ANSWERS (A NEW UPDATED VERSION)
|ALREADY GRADED A+ LATEST UPDATE




What is the number that is specific to the individual patient and
doesn't change from one visit to the hospital to another?


ANSWERS: medical record number


This man worked closely with Thomas Edison and ended up
losing his life due to over exposure to x-rays.


ANSWERS: Clarence Dally


Which of the following refers to "positive beam limitation"?


ANSWERS: Automatic collimation


The exposure switch on a portable machine should be no shorter
than


ANSWERS: 6 feet or 2 meters long

,A cumulative timer is designed to _ of fluoroscopy beam-on time.


ANSWERS: make the radiologist aware


Who introduced ALARA in 1950?


ANSWERS: The International Committee of Radiation Protection
(ICRP)

What does DICOM stand for?


ANSWERS: digital imaging and communications in medicine


Whose hand is in the famous first x-ray image?


ANSWERS: Anna Bertha Ludwig


What does ALARA mean?


ANSWERS: As Low As Reasonably Achievable


True or False:
The ARRT is only concerned about ethics violations related to patient
care.


ANSWERS: False

,The cathode side of the tube should be directed toward the part of
the
patient.


ANSWERS: thicker

Bremsstahlung x-rays are produced when the project electron,
under the electromagnetic influence of the atom's nucleus,
________________________________________________ _.


ANSWERS: loses kinetic energy and changes direction

A 15% increase in kVp is equivalent to _.


ANSWERS: doubling the mAs


The _____ of electromagnetic radiation is constant.


ANSWERS: Velocity


Which of the following is not a property of a photon?


ANSWERS: voltage


When electrons bombard the target, _____% of their kinetic energy
is converted to heat.


ANSWERS: 99

, The atomic number of Lead is 82 and the atomic mass number is 207.
How many neutrons does it have?


ANSWERS: 125


During an exposure, most of the _____ energy of the projectile
electrons is converted to _.


ANSWERS: Kinetic, heat


Bremsstrahlung x-rays are produced by at the target.


ANSWERS: Slowing electrons


What mostly affects the penetrability of the x-ray beam?


ANSWERS: kVp


As an x-ray tube ages, the inside can become coated with
tungsten, which can cause in the tube.


ANSWERS: arching


Gamma rays are produced in the of the atom.


ANSWERS: nucleus