Can the same motor be operated in both direction ?12 11014
what is skin effect? why is it absentin dc system22 34954
what is a relay?31 18033
how electronic energy meter works?12 51370
I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions1239
In case of delta/delta transformer if the one phase is blown out then what will be secondary line voltage ?4 8018
what is the function of commutator in dc motor?52 154314
draw waveform of capacitor or inductor in a d.c ckt(during transient) with zero resistance with it(in series or parallel)also neglect resistance of wire
Resistance of a conductor in a close electrical ckt is practically zero why?1 5016
how is the incoming cable size calculated for a given current rating of a panel??
control & auxilary circuits used for circuir breakers
how to design coil turns ?
am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?
why do we have spikes enough to burn electronic boards, when generators are not grounded
Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system?
What is essential to prove safe isolation of electrical circuit?
What is cross over distortion? How it can be eliminated?
what is mean by D.O. in distribution line poles?
What do you mean by Frame 5 Gas Turbine as well as Mark II.
What are the material used for resistor?
we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards
What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV
How wire size can define in electrical wiring? What is the ratio?
bsnl tta exam question