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NEIEP 400 Final Review Questions and Correct Answers Study Guide

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This document contains review questions and verified answers for the NEIEP 400 final exam focused on elevator electrical systems and motor controls. It covers generators, DC motors, transformers, commutators, armature circuits, electrical measurements, induction motors, magnetic fields, troubleshooting procedures, and elevator hoist motor operations. The material is designed to support NEIEP students and elevator mechanic apprentices preparing for final exams and electrical theory assessments.

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NEIEP 400 Final Review Questions
And Correct Answers


What material should be used for seating brushes?

Sandpaper




Readings on the meter appear to be inaccurate, what should you do?

Test meter




A machine that converts mechanical energy into electrical energy

Generator




What is the purpose of interpoles in a motor?

Helps prevent neutral planes from shifting




In the basic loop circuit generator armature supplies DC power to what DC elevator
hoist motor component?

Motor Armature

, If you have leakage resistance to ground, what will you use to test?

Megger




What kind of device would you use to measure current without disconnecting wiring?

Clamp on ammeter




What is the synchronous speed of 3 phase, 60 Hz, 6 pole motor?

1200 RPM




Before attempting to measure resistance in an unknown resistor in a circuit, what
must be done?

Isolate from one side




What is the method used to resolve residual magnetism to an exitor?

Flashing the field




What is the inherent current limiter present for a rotating motor armature called?

CEMF

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