Define the term PLC.
What will be an ideal response?
A programmable logic controller is a modern control system that combines microprocessor features with software configurable controllers. The basic components of this system include; a processor CPU module, a mounting rack, power supply, user-defined plug-in input/output modules, and a communication interface module. This type of system requires minimal space, is extremely reliable, is reprogrammable, and has high computational ability. Another attractive feature allows laptop computers to interface and programs the system.
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In a three-phase, four wire system, the conductor that is most likely to be affected by nonlinear loads is the _____.
a. ground conductor b. neutral conductor c. phase A conductor d. phase B conductor
What is the purpose of a separation joint?
What will be an ideal response?
Un(a) _____ se clava a los extremos salientes de los soportes superiores y proporciona una superficie para clavar la orilla lateral.
a. soporte superior vertical b. un soporte decorativo c. orilla lateral falsa d. soporte para extensión
The products of complete combustion of a hydrocarbon gas are:
A) Carbon dioxide and carbon monoxide. B) Carbon, carbon dioxide, and carbon monoxide. C) Water and carbon dioxide. D) Water, carbon, carbon dioxide, and carbon monoxide.