What are the logic behind 2x2 and 2x3 logic and more when ask in interviews



What are the logic behind 2x2 and 2x3 logic and more when ask in interviews..

Answer / mnb

these logics are mainly seen in f&g system where signals from 2 sensors out of 3(2 out of 3) reaches preset value the system should shutdown or should do the actions programmed.
this can be used with any transmitters. Its main aim is to avoid unwanted shutdown.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Instrumentation Interview Questions

pressure gauge measure static pressure or dynamic pressure?

3 Answers  


Explain Difference between Bech set and operating range of control valve

3 Answers  


what do you know about Foundation Fieldbus?

1 Answers   CCIE,


What is the basic difference between Modbus and CAN Open Protocols

0 Answers  


how feedback signal frm rtd can be use for 2 purpose, i.e. 1for local monitoring and 2nd for controlling in dcs.so how many wired RTD can be used

1 Answers  






I have a close vessel tank which is under vaccum when in running condition so pl. Provide it's range for dp type tx whose flange to flange distance is 440 mm and density is 1

1 Answers  


what is load line in control valve?

3 Answers   Boral, Qatar Petroleums,


Possible cause of IOP alarm in a DP transmitter: a: IOP-minimum b: IOP-Maximum

4 Answers  


Where is the flow transmitter installed with respect to control valve, state reason.

1 Answers   ADMA OPCO,


How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.

0 Answers   Petro Rabigh,


how to connect 3 wire 4-20 mA transmitter in Plc system PLC system and how explain how the measuring data communicate with plc system.

1 Answers  


Different between control valve and mov

2 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)