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Introduction to Transistor

PLC ladder lo...

Question

PLC ladder logic program for the given conditions with two Push Buttons (PB), one Selector Switch (SS) , one Lamp(LP).

Condition 1: If the Selector Switch is 'OFF' , the Lamp will only turn 'ON' if both Push Button (PB) is pressed.

Condition 2 : If the Selector Switch is 'ON', the Lamp will only turn 'ON' if one or more Push Button (PB) is pressed.

A

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B

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C

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D

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Solution

The correct option is A

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