Question 377Electricity & Electronics - Assistant Engineer

The correct answer is B) The indicator lamp in the master section will remain ON, and the indicator lamp in the effected line section will come ON. When the primary lamp of a particular navigation light burns out, the semi-automatic navigation light panel circuit is designed to provide a visual indication of the lamp failure. With the transfer switch in the primary lamp position, the indicator lamp in the master section will remain illuminated, indicating that power is still being supplied to the circuit. The indicator lamp in the effected line section will then come on, alerting the operator that the primary lamp has burned out and needs to be replaced. The other answer choices are incorrect because they do not accurately describe the behavior of the indicator lamps in this scenario. Option A is incorrect as the indicator lamp in the master section should remain on, not go out. Options C and D are incorrect as the indicator lamp in the effected line section should come on, not go out.