SCR A) Breakover thyristor ...

[asan beg]

SCR
 
  A) Breakover thyristor

Question 2

If the contact on a PLC ladder logic rung is an examine off type, then
 
  A) the field device must be a NO type of contact.
  B) power flows in the contact if the input pin associated with the examine off contact has zero volts present.
  C) the field device must be a NC type of contact.
  D) power flows in the examine off contact if the field device is a NC contact type and the contacts are in their normal position.
  E) None of the above

[momolu]

Answer to Question 1

C

Answer to Question 2

B

[asan beg]

Thank you!

[momolu]

Always glad to help...