Motor Controls Level 3 Practice Test

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What is the full-scale voltage of the 1-5 VDC signal used to monitor the top 8 feet of water in the tank?

1 V

5 V

Full-scale voltage is the maximum output of a sensor’s signal range. For a 1–5 VDC signal, the range runs from 1 V at the bottom to 5 V at the top. Monitoring the top 8 feet of water corresponds to the highest point in that range, so the output at that level is the maximum value, 5 volts. The other voltages (1 V, 4 V, 3 V) would represent lower levels within the tank, not the top.

4 V

3 V

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