Elevator Mechanic Practice Exam

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Prepare for the Elevator Mechanic Exam with comprehensive quizzes, flashcards, and multiple-choice questions. Each question includes hints and detailed explanations to ensure you are ready for your exam!

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R2 in a DC break coil assembly controls what aspect when discharging?

Time to energize after BR contact closes
Voltage spikes from collapsing magnetic lines
Magnetic field buildup
Initial charging current

The correct answer is: Voltage spikes from collapsing magnetic lines

The role of R2 in a DC brake coil assembly is crucial for managing the electrical characteristics during the discharging process. It specifically helps to mitigate voltage spikes that occur when the magnetic field collapses after the coil is de-energized. When the coil is energized, it creates a magnetic field that can store energy. Upon discharging, this energy needs to be released safely. If not managed properly, the sudden collapse of the magnetic field can generate high voltage spikes due to the inductive nature of the coil, which can potentially damage the electronic components in the circuit or create unsafe conditions. By controlling these voltage spikes, R2 ensures that the system operates safely and reliably, maintaining the integrity of the brake coil assembly and preventing issues that could arise from excessive voltage. This is essential for the proper functioning of the elevator system and for the protection of its electrical components.