EGSA Set 04 - Instrumentation And Controls

EGSA Set 04 - Instrumentation And Controls Exam Latest Update 2024 Version Already Graded A+ A magnetic pickup: a) can detect speed b) is an electronically controlled semiconductor device c) works with ferrous metal gear teeth d) Actually has nothing to do with magnetism at all - ANSWERc) works with ferrous metal gear teeth Engine controllers require what instruments to monitor engine conditions? a) System controller b) Motion sensors c) Engine Protective Devices d) Remote Annunciator - ANSWERc) Engine Protective Devices What is a PLC? a) An inexpensive controller that can replace many other controllers. b) a controller used exclusively for I/O functions and is completely programmable. c) a preprogrammed device whose configuration can never be changed once shipped. d) A device that has only very limited, fixed I/O. PLCs can never have adaptive I/O. - ANSWERb) a controller used exclusively for I/O functions and is completely programmable. Engine sending units are often Analog (varying voltage level) devices. How can they interface with digital (on/off) controllers? a) Analog to Digital internal conversion logic. b) That is determined by the engine manufacturer. c) Inductive to switched reluctance conversion. d) By increasing the number of digital switches. - ANSWERa) Analog to Digital internal conversion logic. How does an RTD measure temperature? a) By changing its semiconductor properties with heat. b) By changing resistance with heat. c) By changing its internal pressure with heat. d) An RTD is a radio telemetry device and sends data to the controller. - ANSWERb) By changing resistance with heat. What are the most common parameters monitored on the control panels of generators? a) PF, Watts, Amps b) PF, Watts, VAC c) VAC, Amps, Hz d) Watts, Amps, VAC - ANSWERc) VAC, Amps, H