can any one please tell me the optionals for group-1 mains.actually i am preparing for civils.i took one optional.

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sir/mam i'm the fresher in E.C.E and need the question collections regarding with the circuit development and testing.

1 Answers   Adani Power, HCL,

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why sometimes PF value have an negative sign?

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Consider sinc(x):where sinc(x)=sin (xpi)/xpi. and sinc(x) have max value i.e. unity at x=0 .now if x=0.then pix =0 and sin (pix)=0 at x=0. then above expression sin (xpi)/xpi.should be of 0/0 form i.e. in-determined form. then how sinc(x) is one at x=0. pi is constant.

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What is the difference between power diode and signal diode?

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Distinguish between jfet and mosfet.

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Which frequency would a frequency-counter count , if it is connected to an antenna that is recieving several frequencies close to each other in amplitude?

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What are the different types of filters?

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Hi..Iam going to give Junior Engineer exam og Railway mumbai I wanted to kow where i will get study stuff and GK books? Plz its urgent

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How do Calculate UPs Battery Backup Time? pls help me.Manohar.manoharan1980@rediffmail.com

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How is sio2 layer formed in a monolithic ic?

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What is meant by pwm control in dc chopper?

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