Why the tapping connections are taking above for gas service and below for liquid service?

2 Answers   ADCO,

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it is possible to check the fail safe condition in pressure transmitter. if possible how?

0 Answers  

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What is three element in drum level?

0 Answers  

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What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).

0 Answers  

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how many parts of valve positioner?

1 Answers   Kentz,

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how to commission furnace ( water heater)

0 Answers   Petrofac,

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My question may be very basic or childish but this question still persists in me, someone plz help me 1.why do we go for differential equations to analyze a system? 2.why do we solve it using matrices, is there any specific reason for using matrices other than the stories like it is simple,faster etc.

2 Answers  

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Explain the working principle of variable frequency drive?

0 Answers   ABB,

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hi sir yhis is zahid ali i am preparing for the jspl at oct.4.please send me the recently updated sample paper.

0 Answers   Jindal,

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What is NAMUR standard and why its allways reletad with Sollenoid

2 Answers  

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how to calibrate and troubleshooting of leveltroll?

0 Answers   Kharafi National,

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Pls can anybody tell me how much memory plc's has?in byte or in Kb

2 Answers  

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