IEC Homework 403 Questions And Answers With Verified Tests

SSR is an abbreviation for ___. Select one: a. Static-Switching Relay b. Silicon-Sealed Rectifier c. Solid-State Relay d. Speed-Sensing Response - Answer-c. Solid-State Relay EMR is an abbreviation for ___. Select one: a. Electro-Mechanical Relay b. Energy-Mitigation Rectifier c. Electrical-Motion Ramp d. Electron-Migration Response - Answer-a. Electro-Mechanical Relay The control circuit voltage when connected to a solid-state starter is typically ___. Select one: a. 12 VAC b. 24 VDC c. 12 VDC d. 24 VAC e. any of these - Answer-e. any of these The coil of an EMR performs the same function as ___ of an SSR.Select one: a. an input circuit b. the output circuit c. antiparallel thyristors d. diode bridges - Answer-a. an input circuit To help prevent overvoltage problems, a varistor is connected between the ___ terminals of an SSR. Select one: a. input b. output - Answer-b. output To help dissipate the heat generated within an SSR, the relays are mounted ___. Select one: a. on heat sinks b. in free air - Answer-a. on heat sinks Overload protection in solid-state starters is provided by monitoring motor circuit current flowing though ___. Select one: a. CTs b. heaters c. trippers d. any of these - Answer-a. CTs