You examine a test instrument commonly used to measure insulation resistance on equipment rated 600V or lower. The output of the test instrument is 1000 volts and the lead connections are?
Your Answer: Positive, negative, guard
Correct Answer: None of the above
Help: Basic Test Equipment: Insulation Resistance Tester
Clicking on the provided link, I am taken to description of a megger stating that the terminals are positive, negative, and guard. I think this is meant to be a trick “gotcha” question, because there is a note saying that handheld meggers with outputs of 1000V or less might not have a guard terminal. There’s nothing in the question to imply that this is a handheld megger though.
