Which of these statements is false?
A) Negative angulation directs the central ray upward toward the ceiling.
B) Accurate vertical angulation is more important to the paralleling than the bisecting technique.
C) Vertical angulation of 0 degrees directs the PID parallel to the floor.
D) Vertical angulation refers to directing the PID up and down.
B
Explanation: A) Although the vertical angulation settings vary between these two techniques, both the paralleling and the bisecting techniques require correct vertical angulation to produce diagnostic-quality radiographs.
B) Although the vertical angulation settings vary between these two techniques, both the paralleling and the bisecting techniques require correct vertical angulation to produce diagnostic-quality radiographs.
C) Although the vertical angulation settings vary between these two techniques, both the paralleling and the bisecting techniques require correct vertical angulation to produce diagnostic-quality radiographs.
D) Although the vertical angulation settings vary between these two techniques, both the paralleling and the bisecting techniques require correct vertical angulation to produce diagnostic-quality radiographs.
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