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Railways PYQCBT 1 2016

RRB NTPC · Question 48

The instrument used to examine a person’s digestive tract is called________.

  1. Oscilloscope

  2. Microscope

  3. Endoscope

  4. Radiograph

Show answer & explanation

Answer: (C) Endoscope

Explanation

An endoscope is a thin, flexible tube with a light and camera that doctors pass into the body to examine the digestive tract. An oscilloscope displays electrical signals, and a radiograph is an X-ray image.