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Exam (elaborations)
NEWLY UPDATED CNOR PRACTICE TEST EXAM 
WITH ALL 100 QUESTIONS, ANSWERS AND 
WELL DETAILED RATIONALES
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---94May 20262025/2026A+
- Which of the following movements of a powered 
instrument is used to drill holes or to insert 
screws, wires, and pins? 
A. Reciprocating 
B. Oscillating 
C. Alternating 
D. Rotating - answer-D. Rotating 
Rotary movement is used to drill holes or to 
insert screws, wires, or pins. Reciprocating and 
oscillating movements are used to cut or remove 
bone. Alternating movement should not be sued. 
Aseptic technique is also known as: 
A. Clean technique 
B. Sterile technique 
C. Steril...
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