Resistance checks are being discussed. Technician A says the component must be disconnected from the system before checking. Technician B says an infinite reading means the component is shorted. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because to accurately measure resistance, the component should be isolated from other circuit elements that could affect the reading. Technician B is incorrect because an infinite resistance reading indicates an open circuit, not a short circuit. A short circuit would show very low or zero resistance.

Resistance Checks Are Being Discussed