LMRT Core Test Review 2026/2027 | Actual Questions And
Answers Latest Updated 2026/2027 (Graded A+)
•
restrict the XR beam to the clinical area of interest
- ✔✔As a professional radiographer, the practice of ALARA requires you to
•
prime
- ✔✔The factors that affect XR emission under the direct control of the radiographer are
called_ factors
•
beam quality
- ✔✔Milliamperage-second (mAs) directly affects all of the following EXCEPT
•
mA & filtration
- ✔✔The factors that directly affect XR quantity are
•
kVp & beam filtration
- ✔✔The factors that directly affect XR quality are
•
6.3 x 10(18)
- ✔✔If 1 coulomb is equal to 6.3 x 10(18) electron charges, how many electrons flow from
cathode to anode 1 second
•
6.3 x 10(15)
- ✔✔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?
•
increase 2-fold
- ✔✔As the mA doubles, the number of electrons flowing from cathode to anode
•
XR beam quantity
- ✔✔The product of tube current 7 exposure time is equal to
•
change the mAs from 15-21 mAs
- ✔✔In order to increase radiographic film density by 40% the radiographer would
, •
directly proportional
- ✔✔The relationship between mAs & exposure is
•
the reciprocity law
- ✔✔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.
•
cause the electrons to travel faster from cathode to anode
- ✔✔Increasing the kVp for an exposure will
•
greater energy
- ✔✔Increasing the energy of an incident electron will result in the production of an XR
photon with
•
radiographic film density
- ✔✔Kilovoltage is the primary controlling factor of
•
contrast
- ✔✔Adjustments in kVp should be used to control radiographic
•
kVp
- ✔✔XR beam penetrability is primarily controlled by
•
400 mA, 200 ms, 40" SID
- ✔✔All factor remaining constant, which of the following set of exposure conditions would
yield an image with GREATEST radiographic film density
•
motion
- ✔✔The length of the exposure time (S) for a radiograph, is used to primarily control
•
400 mA,0.110 sec, 80 kVp
- ✔✔A radiograph is taken 400 mA, 55 ms, 95 kVp. A second image could be taken to
improve contrast at
•
attenuation
- ✔✔When an XR photon passes through matter, it undergoes a process called
Answers Latest Updated 2026/2027 (Graded A+)
•
restrict the XR beam to the clinical area of interest
- ✔✔As a professional radiographer, the practice of ALARA requires you to
•
prime
- ✔✔The factors that affect XR emission under the direct control of the radiographer are
called_ factors
•
beam quality
- ✔✔Milliamperage-second (mAs) directly affects all of the following EXCEPT
•
mA & filtration
- ✔✔The factors that directly affect XR quantity are
•
kVp & beam filtration
- ✔✔The factors that directly affect XR quality are
•
6.3 x 10(18)
- ✔✔If 1 coulomb is equal to 6.3 x 10(18) electron charges, how many electrons flow from
cathode to anode 1 second
•
6.3 x 10(15)
- ✔✔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?
•
increase 2-fold
- ✔✔As the mA doubles, the number of electrons flowing from cathode to anode
•
XR beam quantity
- ✔✔The product of tube current 7 exposure time is equal to
•
change the mAs from 15-21 mAs
- ✔✔In order to increase radiographic film density by 40% the radiographer would
, •
directly proportional
- ✔✔The relationship between mAs & exposure is
•
the reciprocity law
- ✔✔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.
•
cause the electrons to travel faster from cathode to anode
- ✔✔Increasing the kVp for an exposure will
•
greater energy
- ✔✔Increasing the energy of an incident electron will result in the production of an XR
photon with
•
radiographic film density
- ✔✔Kilovoltage is the primary controlling factor of
•
contrast
- ✔✔Adjustments in kVp should be used to control radiographic
•
kVp
- ✔✔XR beam penetrability is primarily controlled by
•
400 mA, 200 ms, 40" SID
- ✔✔All factor remaining constant, which of the following set of exposure conditions would
yield an image with GREATEST radiographic film density
•
motion
- ✔✔The length of the exposure time (S) for a radiograph, is used to primarily control
•
400 mA,0.110 sec, 80 kVp
- ✔✔A radiograph is taken 400 mA, 55 ms, 95 kVp. A second image could be taken to
improve contrast at
•
attenuation
- ✔✔When an XR photon passes through matter, it undergoes a process called
