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Most of the time we end up selecting wrong calibration range for pressure gauge if proper standard & thumb rule is not followed.

Single Mode FO Cable – Light Carrying core is smaller in diameter , typically between 8.3 to 10 Micrometre
Multimode FO Cable – Light Carrying core is larger in diameter , typically between 50 to 100 Micrometre

Which of the following is true?

a) Fire resistant cable does not allow fire to propagate quickly in surrounding
b) Flame retardant cable does not burn quickly & continue to operate for some time in fire.
c) Fire resistant cable is used for critical application & Flame retardant cable is used for non-critical application
d) Fire resistant cable is used for non-critical application & Flame retardant cable is used for critical application

Thermocouple Types : B-Type
Temperature Range °C : 1370 to 1700
Applications : Extremely high temperatures, such as glass production

2 – Wire RTD : Low accuracy
3 – wire RTD : Better accuracy than 2 -wire
4- wire RTD : High accuracy

Gate Valve :  Used for on-off control.
Globe Valve : Used for flow regulation

Power Cable :Used for higher voltage transmission
Instrument Cable: Smaller amount of voltage and current