Question 285Electricity & Electronics - Assistant Engineer

The correct answer is C) The test button is used to mimic an overload to test the trip function of the overload relay. This is the correct answer because the purpose of the test button is to simulate an overload condition and verify that the overload relay will properly detect the overload and open the normally closed contacts to interrupt the circuit, as required by Coast Guard regulations for proper safety and functioning of the electrical system. The other options are incorrect because they do not accurately describe the purpose of the test button, which is specifically to test the trip function of the overload relay, not to reset the relay contacts or check the actual current trip value.