10 free EEI TOSS practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
EEI TOSS Practice Test 13Tutor mode
Question 1 of 10
Reasoning from Rules
Logic network
Switch states are shown as ON or OFF.
Gate rules: AND — the output is ON only if every input is ON. OR — the output is ON if at least one input is ON. NOT — the output is the reverse of its single input (ON becomes OFF, OFF becomes ON).
A lamp is lit when the signal reaching it is ON. A dot marks a point where one wire branches to two gates.
With the switches set as shown, which lamps are lit?