NBDHE REVIEW 667 QUESTIONS FINAL
SCRIPT 2026 FULL QUESTIONS AND
CORRECT ANSWERS SUCCESS PREP
GRADED A+
⩥ 2. A periapical image of the maxillary right molar area is needed,
but patient has a shallow palate, and the first image taken misses
the apices of the teeth. To correct this error, using the paralleling
technique, an acceptable image can be obtained by moving the
position indicating device (PID) in a
A 20-degree difference in the horizontal angulation toward the
mesial surfaces.
B 20-degree difference in the horizontal angulation toward the
distal surfaces.
C positive 20-degree difference in the vertical angulation.
D negative 20-degree difference in the vertical angulation.
E direction in which the central ray is perpendicular to the image
receptor.
Answer: D negative 20-degree difference in the vertical angulation.
⩥ 6. Considering exposure time during the production of x-rays, how
many impulses are equivalent to 1⁄4 second?
,A1
B6
C 15
D 30
E 240
Answer: C 15
⩥ 7. Order the steps for the manual processing of x-ray films. Match
each letter with its proper sequence number.
A. Rinsing in water for 30 seconds
B. Washing in water for 20 minutes
C. Developing
D. Fixing
E. Drying
Answer: C. Developing
A. Rinsing in water for 30 seconds
D. Fixing
B. Washing in water for 20 minutes
E. Drying
⩥ 8. From the following list, select the three elements used in the x-ray
tube.
,A Bromine
B Copper
C Iron
D Molybdenum
E Nickel
F Silver
G Tungsten
Answer: B Copper
D Molybdenum
G Tungsten
⩥ 9. Which of the following is the unit used to measure radiation
exposure?
A Gray (Gy)
B Radiation absorbed dose (rad)
C Roentgen (R)
D Roentgen equivalent in man (rem)
E Sievert (Sv)
Answer: C Roentgen (R)
⩥ 10. A radiographic image will have increased density if the operator
A increases the kVp.
, B decreases the kVp.
C decreases the milliampere (mA).
D increases the distance of the x-ray source to the image receptor.
Answer: A increases the kVp.
⩥ 11. The smaller the silver halide crystals in the emulsion of an
intraoral film, the faster the film speed. Faster film speed reduces
radiation exposure to the patient.
A Both statements are true.
B Both statements are false.
C The first statement is true, and the second statement is false.
D The first statement is false, and the second statement is true.
Answer: D The first statement is false, and the second statement is true.
⩥ 12. Which ingredient of the developing solution in the manual
processing of x-ray films is alkaline and aids in the softening of the
emulsion?
A Potassium bromide
B Potassium alum
C Sodium carbonate
D Sodium sulfite
E Sodium thiosulfate
SCRIPT 2026 FULL QUESTIONS AND
CORRECT ANSWERS SUCCESS PREP
GRADED A+
⩥ 2. A periapical image of the maxillary right molar area is needed,
but patient has a shallow palate, and the first image taken misses
the apices of the teeth. To correct this error, using the paralleling
technique, an acceptable image can be obtained by moving the
position indicating device (PID) in a
A 20-degree difference in the horizontal angulation toward the
mesial surfaces.
B 20-degree difference in the horizontal angulation toward the
distal surfaces.
C positive 20-degree difference in the vertical angulation.
D negative 20-degree difference in the vertical angulation.
E direction in which the central ray is perpendicular to the image
receptor.
Answer: D negative 20-degree difference in the vertical angulation.
⩥ 6. Considering exposure time during the production of x-rays, how
many impulses are equivalent to 1⁄4 second?
,A1
B6
C 15
D 30
E 240
Answer: C 15
⩥ 7. Order the steps for the manual processing of x-ray films. Match
each letter with its proper sequence number.
A. Rinsing in water for 30 seconds
B. Washing in water for 20 minutes
C. Developing
D. Fixing
E. Drying
Answer: C. Developing
A. Rinsing in water for 30 seconds
D. Fixing
B. Washing in water for 20 minutes
E. Drying
⩥ 8. From the following list, select the three elements used in the x-ray
tube.
,A Bromine
B Copper
C Iron
D Molybdenum
E Nickel
F Silver
G Tungsten
Answer: B Copper
D Molybdenum
G Tungsten
⩥ 9. Which of the following is the unit used to measure radiation
exposure?
A Gray (Gy)
B Radiation absorbed dose (rad)
C Roentgen (R)
D Roentgen equivalent in man (rem)
E Sievert (Sv)
Answer: C Roentgen (R)
⩥ 10. A radiographic image will have increased density if the operator
A increases the kVp.
, B decreases the kVp.
C decreases the milliampere (mA).
D increases the distance of the x-ray source to the image receptor.
Answer: A increases the kVp.
⩥ 11. The smaller the silver halide crystals in the emulsion of an
intraoral film, the faster the film speed. Faster film speed reduces
radiation exposure to the patient.
A Both statements are true.
B Both statements are false.
C The first statement is true, and the second statement is false.
D The first statement is false, and the second statement is true.
Answer: D The first statement is false, and the second statement is true.
⩥ 12. Which ingredient of the developing solution in the manual
processing of x-ray films is alkaline and aids in the softening of the
emulsion?
A Potassium bromide
B Potassium alum
C Sodium carbonate
D Sodium sulfite
E Sodium thiosulfate
