Describe how to use megger to measure the earth resistance and insulation resistance

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how to calculate orifice sizing? and tell me if pipe size bet 50mm t0 200mm then we can use pipe flange??? and above 250mm pipe size should i use D & D/2 Flange? is it right or wrong?

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wht is loops ? how many loops are there?

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what is dry leg and wet leg in transmeter calibration?

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what is the input of ph sensor and meter during the calibration time and what is the output?

1 Answers   Sabic,

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how to trim the pressure transmitter ?

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Hi Friends , i need one urgent help , i am preparing for M.tech entrance examination , i need some obejective questions related to instrumentation field. where can i get those ? can anyone help me pls ?

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IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?

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What is PDS and PDMS ?

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During the design and engineering of a process plant, a good designer should plan for ____________, ___________ and ____________ aspects of the plant

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what is the importance of CV in the control valves? how it is calculated?

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why two probes are used in turbine flowmeters?

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