Answer / vicoy

Wet Contact has line supply voltage either AC or DC
Dry Contact is open and closed continuity

Answer / saravanakumar

wet contact is a contact which is not potential free. But dry contact is a potential free contact and the contact rating can be either 24VDC, 230VAC or 110VAC.

wt kind of business we can do by usig PLC?

2 Answers   Dabur,

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1.what is beta in control valves? 2.what is the condition followed by light in LASERs? 3.1kg/cm2=?psi 4.Integral action reduces what? 5.about vena contracta 6.a simple RC circuit 7.thermistor material's temp coefficient of resistance 8.if wave passes through the thicker area of a chord to a thinner area what changes will occur to wavelength? 9.if 4-20 mA represents 0-10 kg/cm2 what will be the current when pressure is 5 kg/cm2.................

0 Answers   Lurgi,

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A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe

0 Answers  

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what is gas metering system? gas chromatograph? and gas compressors?

0 Answers   HPCL,

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What happens if the Displacer has fallen or has a hole in it?

1 Answers   CCIE,

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What is the minmum distance between the electrical panel and Instrument panel

1 Answers   Dodsal,

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dear friends pls tell me how temperature compensations are done in bourdoun tube of pressure guages thankx

1 Answers  

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How to Calibrate Vibration Probe (Axial, Redial) in field

0 Answers  

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Can we use mov instead of esdv Explain the reason

1 Answers   KOC,

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Define the terms Accuracy, precission, Spam, process tolerance while doing calibration of an instrument? Explaini with an example?

0 Answers   AquaTech,

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WHAT REASEAN USE TRANSMETER TWO WIRE & FOUR WIRE

5 Answers   Kentz,

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what is the control valve?how many types of control valves are there

6 Answers   Chemin, Hindustan Zinc,

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