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Author Question: Which of the following statements about RLL is NOT true? A) NC contact symbol has the same two ... (Read 36 times)

c0205847

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on: Jul 28, 2018
Which of the following statements about RLL is NOT true?
 
  A) NC contact symbol has the same two parallel lines with a line across them to indicate closed contacts.
  B) NO contact symbol has two parallel lines to indicate an open contact.
  C) The right power rail is positive or the high side of the source, and the left power rail is the power return or ground.
  D) RLL stands for Relay Ladder Logic.

Question 2

Which of the following statements about a single pole double throw relay is NOT true?
 
  A) It has two positions (NC and NO). B) It has one common contact.
  C) It has a center off position. D) It is called an SPDT type of relay.


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31809pancho

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


c0205847

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Reply 2 on: Jul 28, 2018
Gracias!

amcvicar

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Reply 3 on: Yesterday
:D TYSM

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