As shown in all four diagrams included in...

Question 1 / 270705eccefa5bacbc34ba4d486ba

Question 1 of 270705eccefa5bacbc34ba4d486ba

As shown in all four diagrams included in the illustration, what type of logic circuit is represented? Illustration EL-0227

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Question 1 of 27070

As shown in all four diagrams included in the illustration, what type of logic circuit is represented? Illustration EL-0227

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🔍 Key Concepts

• Look carefully at the truth table in box A: when does output Y become 1 compared to inputs A and B? • In box C, note whether the PLC ladder contacts for Input A and Input B are in series or in parallel and what that means for current flow. • Compare the behavior you see to the standard logic gate families: AND, OR, NAND, NOR.

💭 Think About

• If only one input is active (A=1, B=0 or A=0, B=1), what happens to the output according to the truth table? • Based on the relay/ladder diagrams, would the output device energize when just one of the input switches closes, or do both need to close together? • Which of the listed gates gives an output of 0 only in one specific input condition shown in the table?

✅ Before You Answer

• Verify which gate type has an output of 0 only when both inputs are 0. • Confirm whether the PLC ladder in box C shows parallel contacts (either path completes the circuit) or series contacts (both must be closed). • Match the waveform in box D to the truth table: ensure the output is high during all time periods when at least one input is high, if that is what you observe.

Question 1 of 27070

As shown in all four diagrams included in the illustration, what type of logic circuit is represented? Illustration EL-0227

NOR gate

NAND gate

AND gate

OR gate