Question 8Electricity/Electronics - 1st Asst/Chief70% to pass
When performing an absence-of-voltage test, a live-dead-live test may be required in conjunction with the absence-of-voltage test. What is the purpose of the live-dead-live test?
AI Explanation
The correct answer is A.
The purpose of the live-dead-live test when performing an absence-of-voltage test is to prove the functional ability of the voltage tester to measure voltage prior to and after conducting the absence-of-voltage test. This validates the results of the absence-of-voltage test, ensuring that the voltage tester is working properly and providing accurate readings.
The other options are incorrect because:
B) The live-dead-live test is not performed solely after the absence-of-voltage test.
C) The live-dead-live test is not performed solely before the absence-of-voltage test.
D) The absence-of-voltage test does not validate the live-dead-live test; the live-dead-live test validates the absence-of-voltage test.
Related Questions
#6 Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out? #7 For the purposes of safety and determining the shock hazard, nominal voltage is defined as the normal electrical system design voltage. This can be determined from what is displayed on nameplates, dataplates, schematics, or single-line diagrams. What does the nominal voltage represent? #9 When performing an absence-of-voltage test before commencing repair work, at the minimum where must the absence-of-voltage test be performed? #10 When taking voltage measurements, for reasons of electrical safety, what should be the proper sequence of actions? #11 Why should an electrical worker determine the nominal voltage of a circuit first before making contact with the circuit?