Answer Posted / vaibhav v t

ATEX means Atmosphere Explosives.ATEX is europiean body for
issuing certification to instruments for thier use in
hazardous area/application.ATEX has specific marking on
instruments which mentions class, div, temp class,gas class.

Instrinsic safe means it is one type achiving safety for
usisng instruments in hazardous application.Electronics in
instruments is designed in a such way that energy generated
during spark inside is such low so tat it will not ignite
explosive gas-air mixture.All componenets are low power
feed.

What is the difference between PLC and DDC?

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What you mean by multi stage control vavles?

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how can be calibrate flow indication transmitter (rosemount) it shows excess milli amps nearly about 24 ma on full scale, but its scale was set on 20ma on full scale..???how can be simiulate..???

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Pl send the model question paper of mahagenco account officer post

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2. What is ultrasonic flowmeter?

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What is the purpose of LO Overhead tank in turbines.

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can any one tell me when ongc placement test and its forms is available????/ pls tell me if u know

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please send the drdo exam paper

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components of control circuit belongs to control valve

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What is profibus?

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