NEIEP Mechanics Practice Exam

The correct answer is that the jaw side of the governor must be plumb in relation to the releasing carrier of the car. This positioning is crucial for the proper operation of the governor mechanism in elevators. When the jaw side is plumb, it ensures that the releasing mechanism engages correctly and operates smoothly. This alignment prevents potential issues such as miscommunication between the governor and the safety systems of the elevator, which can lead to malfunction or safety hazards.

In contrast, if the jaw side were angled, adjusted, or extended, it could disrupt the precise interaction necessary for the reliable operation of the governor. An angled position might cause improper engagement with the releasing carrier, while adjustments could lead to inconsistencies in how the system responds to movement. An extended jaw side could also result in misalignment, which might prevent the governor from functioning as intended. Thus, maintaining a plumb condition is essential for ensuring safety and efficiency in elevator operations.