Two normally closed push buttons wired in parallel implement which type of logic?

Prepare for the AEA Amatrol Sensor Logic Systems Test. Dive into interactive multiple-choice questions and quizzes, each with detailed explanations. Sharpen your skills and boost your confidence for your certification exam!

Multiple Choice

Two normally closed push buttons wired in parallel implement which type of logic?

Explanation:
When you use normally closed contacts, nothing conducts only when a button is pressed (it opens). Placing two of these in parallel means the circuit will conduct as long as at least one contact is closed. If neither button is pressed, both are closed and the circuit conducts. If one button is pressed, that path opens, but the other path remains closed, so the circuit still conducts. Only if both buttons are pressed do both paths open, and the circuit stops conducting. So the output is true except when both inputs are true (pressed), which is the NOT AND function, also known as NAND.

When you use normally closed contacts, nothing conducts only when a button is pressed (it opens). Placing two of these in parallel means the circuit will conduct as long as at least one contact is closed. If neither button is pressed, both are closed and the circuit conducts. If one button is pressed, that path opens, but the other path remains closed, so the circuit still conducts. Only if both buttons are pressed do both paths open, and the circuit stops conducting.

So the output is true except when both inputs are true (pressed), which is the NOT AND function, also known as NAND.