Two electronics technicians are looking at the piece of testing equipment shown in the figure above. Technician A says that this
piece of equipment is called a digital multimeter. Technician B says that this piece of equipment is substituted for the power conversion circuits inside a piece of equipment that's being tested. Which of the following statements is correct? A. Neither of the two technicians is correct.
B. Only Technician B is correct.
C. Both Technician A and Technician B are correct.
D. Only Technician A is correct.
The piece of equipment shown in the figure is an oscilloscope which is a device for viewing oscillations by a display on the screen of a cathode ray tube. Oscilloscopes are used to observe the change of an electrical signal over time in the way that voltage and time describe a shape which is continuously graphed against a calibrated scale.