If single phase voltage level is 230V than why three phase voltage level is not 660V ?, but it is only 440V.
16 75079what are the safety in transformer,diesel generator,ups, chiller plant,h.t. , L.t. , sewage treatment plant(stp),water treatment plant(wtp), fire. plz ans. me in detail if you know any of the mention above. i urgently need
2 4818What is the ideal Bacteria Value for Sewage treatment plant operations with great efficiency.And what is the COD , BOD and Bacteria Measuring units and standard values in India.
1 3841Post New EFS Interview Questions
What is a superclass in oop?
How xslt works with xml?
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If a parameter is used in a query without being previously defined, what diff. exist betw. report 2.0 and 2.5 when the query is applied ?
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I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?
By default, which index is created by mongodb for every collection?
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diff b/w elcb and rccb
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