LMRT Core Review 2025/2026 – Limited Scope Radiography Study Guide with Key Concepts, Practice Questions & ARRT-Aligned Answers

LMRT Core Review 2025/2026 – Limited
Scope Radiography Study Guide with
Key Concepts, Practice Questions &
ARRT-Aligned Answers

restrict the XR beam to the clinical area of interest



Ans: As a professional radiographer, the practice of ALARA requires you to



Quiz prime



Ans: The factors that affect XR emission under the direct control of the radiographer are called_
factors



Quiz beam quality



Ans: Milliamperage-second (mAs) directly affects all of the following EXCEPT



Quiz mA & filtration



Ans: The factors that directly affect XR quantity are

,Quiz kVp & beam filtration



Ans: The factors that directly affect XR quality are



Quiz 6.3 x 10(18)



Ans: If 1 coulomb is equal to 6.3 x 10(18) electron charges, how many electrons flow from
cathode to anode 1 second



Quiz 6.3 x 10(15)



Ans: If 1 ampere equals a flow of 6.3 x 10(18) electrons per second, how many electrons flow
from cathode to anode in 1 milliampere?



Quiz increase 2-fold



Ans: As the mA doubles, the number of electrons flowing from cathode to anode



Quiz XR beam quantity



Ans: The product of tube current 7 exposure time is equal to



Quiz change the mAs from 15-21 mAs



Ans: In order to increase radiographic film density by 40% the radiographer would

, Quiz directly proportional



Ans: The relationship between mAs & exposure is



Quiz the reciprocity law



Ans: The reaction of a photographic film to light is equal to the product of the intensity of the
light and the duration of the light exposure.



Quiz cause the electrons to travel faster from cathode to anode



Ans: Increasing the kVp for an exposure will



Quiz greater energy



Ans: Increasing the energy of an incident electron will result in the production of an XR photon
with



Quiz radiographic film density



Ans: Kilovoltage is the primary controlling factor of



Quiz contrast