Answer Posted / g.selvaa

PLZ SEND ME THE RRB JE-2 EXAM QUESTION PAPER(LAST 4 YEARS)

sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com

1789

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What are Contactors? How they works and what its highest rating?

2064

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In a synchronous motor. if start is running at high speed.  What will be the starting torque : Higher Lower Zero

1654

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What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

2273

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What is diversity factor in electric installations?

1119

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Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

1924

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HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA

1916

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Haw to check conductivity of budbar

1753

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How to determine alternating current frequency?

1089

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what is the difference between the characteristics of two different phase bushing of any transformer

1764

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HOW TO CALCULATE THE VT SIZING?

3050

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what is earthing.how we make it,describe briefly.

2558

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i am going to attaned the engineer (disign)iterview at HAL please give me duid line

2235

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What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?

2713

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Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

1789

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