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Sir, Plz send the last 5 yrs ques papers for Railway board's section engineer post. Thanks, c_k_chand@yahoo.co.in
1840Do anyone know how can I calculate earthing for substation or do anyone know any software which I can use for this case
1 4017Usually we say that capacitors block dc and allow ac. if a capacitior is connect in series with a resistance.. will current pass through the capacitior.... if i doesn't pass..is it due to offering of infinite resistance by capacitor there by acting as a open....
1 4358why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)
24777. Why AC motors, AC bulbs etc... are donot operated by DC signals? and Why DC motors, DC bulbs etc... are donot operated by AC signals?
Bhel,
2 5577Why AC loads wont used in DC input supply? and Why DC loads wont used in AC input supply?
Bhel,
3 74611. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?
23031. for eg, capacitor is used for many purposes(it act as filter, oscillator, bypass capacitor, memory storage etc...) 2. Please tell me some example circuits for different uses of capacitor( whenever and whereever and however we used capacitor as a filter, oscillator tuning etc..) 3. similarly for inductor and resistors(it act as what?) and when and how we want to act as like that?, and how we can used these components depends upon our requirments with example circuits and explanation? design to act as these components depends
1837
write down the formula of cable size in RM if current is 50Amp.
how to calculate energy of 3-phase motor?
Write down the expression for the average output voltage for step down and step up chopper?
how to create user name stape by stape in cisco router {with command}
how to handle errors in fastload?
what is difference between british wire guage & birmingham wire guage
What type interview questions ask in Electrical technicians
What is corkscrew rule?
How much load can be taken for chiller from 1500 kva transformer
what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..
Define rise time.
What is boucholz relay and the significance of it in to the trformer?
how to determine the inrush current of a transformer
Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.
why current flow to the opposite direction of flow of electrons???????????
