Question 54Electricity & Electronics - Assistant Engineer

The correct answer is A) a voltage tester with a high input impedance and a voltage rating higher than any expected measured voltages. A voltage tester with a high input impedance is the safest option as it minimizes the electric shock hazard. This is because a high input impedance limits the current flow through the tester, reducing the potential for electric shock. Additionally, having a voltage rating higher than any expected measured voltages ensures that the tester can safely handle the voltage levels it is testing, further reducing the risk of electric shock. The other options are less desirable. A low input impedance tester (B and C) would allow higher current flow, increasing the electric shock hazard. A tester with a lower voltage rating than the expected measured voltages (D) could be unsafe, as it could be damaged or fail, potentially causing an electric shock.