NCCER Electrical level 2 Module 11 'Control systems and Fundamental Concepts' Exam 2025 Questions & Answers with 100% Correct Answers | Verified

The maximum tungsten/infrared load amperage for a NEMA Size 0 magnetic contactor is ___. - 10A A manual reversing starter uses ___. - a mechanical interlock Mechanically held relays would most likely be used in a ___. - hospital, auditoriums, churches A single-contact device can be used to control multiple loads using a ___. - multiple-pole relay A furnace might use an on delay to ___. - avoid blowing cold air into the space when the system starts up A type of relay controlled by a magnetic field is a(n) ___. - reed relay A type of renewable overload device is a ___. - melting alloy relay The operating coil of a relay is designed to work properly at ___. - 80% to 110% of the rated voltage A device that allows relays to be controlled as a group while still allowing individual switch control is a ___. - master sequencer Where low-voltage cable must be run parallel with high-voltage cable, it should be separated by minimum of ___. - 6" (150mm) The function of a shading coil in a contactor is to ___. - prevent contact chatter and hum What is the major difference between a contactor and a motor starter? - The starter provides overload protection while a contactor does no