NEIEP 600 COMPREHENSIVE REVIEW 2026 VERIFIED QUESTIONS AND SOLUTIONS

NEIEP 600 COMPREHENSIVE REVIEW 2026
VERIFIED QUESTIONS AND SOLUTIONS


◉A TRIAC conducts during: Answer: Both halves of the AC cycle


◉A DIAC is used to: Answer: Trigger a TRIAC


◉Phase control regulates power by: Answer: Delaying the firing
angle


◉Increasing firing angle delay will: Answer: Reduce output power


◉An op-amp is used to: Answer: Amplify voltage


◉An op-amp has how many inputs: Answer: Two


◉Negative feedback is used to: Answer: Stabilize gain


◉If feedback is lost in an op-amp, the output will: Answer: Saturate


◉A comparator output will be: Answer: High or low only

, ◉Logic gates operate using: Answer: Binary values


◉Binary logic uses which values: Answer: 0 and 1


◉An AND gate outputs HIGH when: Answer: All inputs are HIGH


◉An OR gate outputs HIGH when: Answer: Any input is HIGH


◉A NOT gate output is: Answer: The inverse of the input


◉A NAND gate outputs LOW when: Answer: All inputs are HIGH


◉A NOR gate outputs HIGH when: Answer: All inputs are LOW


◉An XOR gate outputs HIGH when: Answer: Inputs are different


◉An XNOR gate outputs HIGH when: Answer: Inputs are the same


◉A truth table shows: Answer: All possible input and output
combinations