LMRT State Exam Reviewed Solved Questions With Revised Correct Detailed Answers

LMRT State Exam
Reviewed Solved Questions With
Revised Correct Detailed Answers

1. What are the four primary factors of radiographic quality?
A.) mA, seconds, kVp, and SID
B.) SID, density, Contrast, and mAs
C.) Receptor exposure, contrast, spatial resolution, and distortion

D.) Receptor exposure, contrast, distortion, and distance - ANSWER Receptor
exposure, contrast, spatial resolution, and distortion


2. Contrast is primarily controlled by altering the:
A.) mA
B.) Exposure time
C.) kVp

D.) mAs - ANSWER kVp


3. Scatter radiation fog affects radiographic quality by causing:
A.) under exposure
B.) Decreased Contrast
C.) Increased contrast

D.) Decreased density - ANSWER Decreased contrast

,4. A change from the small focal spot to the large focal spot will result in:
A.) Decreased spatial resolution
B.) Magnification
C.) Distortion

D.) Increased contrast - ANSWER Decreased spatial resolution


5. An increase in object-image receptor distance (OID) will result in:
A.) Increased magnification
B.) Increased image sharpness
C.) loss of contrast

D.) Increased radiographic density - ANSWER Increased magnification


6. Motion of the patient, the tube, or the IR during the exposure will result in
decreased:
A.) Contrast
B.) Distortion
C.) Receptor exposure

D.) Spatial Resolution - ANSWER Spatial Resolution


7. What does quantum mottle (noise) look like on a radiographic image?
A.) Large light and dark spots
B.) Finely speckled or grainy areas
C.) Alternating light and dark lines

D.) Overall greyness - ANSWER Finely speckled or grainy areas

,8. Quantum mottle with a digital imaging system is caused by:
A.) The kVp being set too low
B.) The mAs being set too low
C.) The use of a low ratio grid

D.) The collimation being set too wide - ANSWER The mAs being set too low


9. Which of the following will increase spatial resolution?
1. Increase in SID
2. Increase in OID
3. Decrease in focal spot size


A.) 1 and 2 only
B.) 1 and 3 only
C.) 2 and 3 only

D.) 1, 2, and 3 - ANSWER 1 and 3 only


10. What is the appearance of a high signal-to-noise ratio (SNR) image?
A.) Highly detailed, with very little quantum mottle
B.) Very grainy and poorly detailed
C.) High contrast and very grainy

D.) Very low contrast with few image details seen - ANSWER Highly detailed,
with very little quantum mottle

, 11. What is the proper method for storing unopened boxes of x-ray film?
A.) Stacked flat with the edges of the boxes aligned
B.) Stacked flat with the edges of the boxes staggered
C.) Standing on edge

D.) X-ray film cannot be safely stored - ANSWER Standing on edge


12. Which of the following describe the action of the developer in an automatic
film processor?
A.) Removes the unexposed silver halide crystals from the film emulsion
B.) Removes the exposed silver halide crystals from the film emulsion
C.) Changes the exposed silver halide crystals into black, metallic silver
D.) Changes the unexposed silver halide crystals into black, metallic silver -
ANSWER Changes the exposed silver halide crystals into black, metallic silver


13. During digital image processing, electronic masking should not be used to
replace:
A.) proper kVp slection
B.) Proper mAs selection
C.) Appropriate SID

D.) Proper radiographic collimation - ANSWER Proper radiographic
collimation


Which of the following is not a component of a compound radiography plate
reader?
A.) Laser
B.) Analog-to-digital (light to electronic signal) converter