The circuit breaker that protects a power window circuit opens whenever the window is lowered. Technician A says the internal resistance of the motor is too high. Technician B says the window regulator may be sticking. Who is correct?
A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question

The circuit breaker that protects a power window circuit opens whenever the window is lowered. Technician A says the internal resistance of the motor is too high. Technician B says the window regulator may be sticking. Who is correct?
A) Technician  A only
B) Technician  B only
C) Both Technician A and B
D) Neither Technician A nor B

Quizplus · Accepted Answer

If the circuit breaker opens whenever the window is lowered, it suggests that there is an overload or high current draw when the window is moving. Technician B's explanation about the window regulator sticking is more likely to cause this issue than Technician A's explanation about the motor's internal resistance. Therefore, Technician B is correct.

The Circuit Breaker That Protects a Power Window Circuit Opens