Author Question: Shiny thermos bottles moving in a production machine must be counted where access to both sides of ... (Read 182 times)

swpotter12 · **on:** Jul 28, 2018

Shiny thermos bottles moving in a production machine must be counted where access to both sides of the conveyor is permitted, but the sensor must be 18 inches from the bottles. The sensor to be used is ________.

A) Retroreflective B) Diffused
C) Through beam D) Polarized retroreflective

Question 2

Which of the following statements is not correct?

A) High current can generate sufficient heat to burn the body tissue beneath the skin including internal organs.
B) Internal muscles can also be immobilized by a DC current so that breathing and/or blood pumping is stopped.
C) Fibrillation is produced by even a small DC current.
D) Potential high enough to overcome the contact resistance of the skin, causes the current flowing through the body to cause damage nerves and/or tissue.
E) All of the above statements are correct.