Which of the following statements is correct?
A) Vertical angulation is usually described in millimeters.
B) Vertical angulation of the tube head and PID begins at 90 degrees.
C) To change vertical angulation, the tube head is swiveled from side to side.
D) When the open end of the PID is tilted toward the floor, the vertical angle is positive.
D
Explanation: A) Vertical angulation is described in degrees, with the vertical angulation of the tube head and PID beginning at zero, where they are parallel to the floor. The vertical angulations, scaled in 5 or 10 degrees, are inscribed on the sides of the yoke, where the tube head is connected. When pointing down toward the floor, the vertical angulation is called "positive," and when pointing up toward the ceiling, the vertical angulation is called "negative."
B) Vertical angulation is described in degrees, with the vertical angulation of the tube head and PID beginning at zero, where they are parallel to the floor. The vertical angulations, scaled in 5 or 10 degrees, are inscribed on the sides of the yoke, where the tube head is connected. When pointing down toward the floor, the vertical angulation is called "positive," and when pointing up toward the ceiling, the vertical angulation is called "negative."
C) Vertical angulation is described in degrees, with the vertical angulation of the tube head and PID beginning at zero, where they are parallel to the floor. The vertical angulations, scaled in 5 or 10 degrees, are inscribed on the sides of the yoke, where the tube head is connected. When pointing down toward the floor, the vertical angulation is called "positive," and when pointing up toward the ceiling, the vertical angulation is called "negative."
D) Vertical angulation is described in degrees, with the vertical angulation of the tube head and PID beginning at zero, where they are parallel to the floor. The vertical angulations, scaled in 5 or 10 degrees, are inscribed on the sides of the yoke, where the tube head is connected. When pointing down toward the floor, the vertical angulation is called "positive," and when pointing up toward the ceiling, the vertical angulation is called "negative."
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