NCCER Review | 242 Questions and Correct Solutions Latest Update 2024

NCCER Review | 242 Questions and Correct Solutions Latest Update 2024 A technology bypassing conventional I/O by using direct communications between smart field devices and associated control processors is: SCADA WAN Peer-to-peer Fieldbus - Answer -Fieldbus Redundant controllers in a distributed control system reside: In pairs in the same enclosure In a master-slave relationship at assigned locations As a hot standby at the central processor. On a different communications segments. - Answer -As a hot standby at the central processor. The ultimate period method for tuning a controller was first proposed by: Naylor and Tunstall Mitchem and Smith Hobbs and Lewley Ziegler and Nichols - Answer -Ziegler and Nichols One method of oxygen analysis focuses on the: Color properties of oxygen Dissolvability of oxygen in water Liquefaction properties of oxygen Paramagnetic properties of oxygen - Answer -Color properties of oxygen A Piece of pipe has an AISI classification of A105, the major alloy