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i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper
2134why 3 phase induction motor only need starter ? why not other motors need starter ?(like synchronous motor,single phase induction motors & their types) ?
3 10550What is the Ideal Earth to Neutral Rating for Techonology Equipment like Routers, Switched, PABX, Computers etc etc?
2 4403why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!
1835Post New Electrical Engineering Questions
How to design a Unit auxiliary transformer for a power house having a unit of 65 MW and Generating voltage of 11 KV and Secondary voltage of 433V
Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?
What are the uses of lead compensator?
what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end
why servomotor motor? where i apply for best output?
What does the term “voltage regulation” means?
in dc series motor if field wdg is shorted then
How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.
What does the term power factor shows?
Why High voltage are generate noise ?
WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)
what is earthing.how we make it,describe briefly.
How to select, design,size & calculate for 11 KV/33KV/66KV/132KV/220 KV/440 KV circuit breaker for HT side of transformer protection/HT distribution protection?
how to calculate slip ring induction motor stator and rotor currents??
what is dry and wet frequency withstand voltage? why & where it is used??
