thermal power station operation in general

11 Answers   AJ Square Inc, Jindal, NTPC,

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You are given 220 V supply source, four wires, an ammeter and voltmeter. There is no any indication or description on meters. How will you identify which is ammeter or voltmeter?

7 Answers   ABB,

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What will happen if we introduce negative feedback to a control system that uses a positive feedback?

0 Answers   GE,

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What is the power rate of power transformer?

1 Answers  

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what sort of general awareness questions are asked in o.n.g.c entrance exam?????????????????

0 Answers  

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last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?

1 Answers   Siemens,

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why breather cap filled with oil?

7 Answers  

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What are the safety measures of Alternator Explain them?

1 Answers   HSL,

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what is FS cable?? Difference between FS and FRLS??

1 Answers   Multivista Global,

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What is the use of conservater, bucchos relay, breather in a transformer?

8 Answers   Bosch, Wipro, Zadco,

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What is CBCT ,why and whereit is used?

2 Answers  

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In a house wiring why we are using only one neutral wire and so many phase wires from the main board, when the load is common for both wires?

3 Answers  

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