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Electrical Engineering Interview Questions

is it possible to test of bus bar in high rise building without completed full floor ?

699

How to check it good or bad capacitor

IMD, ST,

3002

electricity bill multiplication factor 487.20xconsumption=total unit in kwh. what is 487.20 ?

1464

what will happen if i will done heart shape hole in transformer core?

Bhel, ONGC,

2207

772

1696

what is the calculation of power factor?

GATE,

2066

Which device is provided as backup of Buchholz relay???

2316

IDMT relay are mostly used for protection against..??? 1)Earth Fault 2)Inter turn fault 3)Overloading 4)None of the above

1529

should dc supply will give the transformer to build up the voltage level

1055

Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.

NCC,

788

any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.

728

how to calculate cable size with respect kw

SPMI,

799

How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?

996

sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence

1062

Un-Answered Questions { Electrical Engineering }

What is slope...? Explain slope 1 and slope 2...?

554

specify the inbuilt protections in DG

1155

What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

1165

how calculate the electrical load for industry and office

7272

how generator load test is conducted?what are the steps?

667

why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?

1103

In a flange coupling, the flange bolts are designed for

202

what are the differant std sizes of cable trenches?

1044

what is the difference between surge protection capacitor and surge arrestor

1294

What are the different circuits in thermal power plant?

166

What is reverse power relay?

168

Define early construction of human being

954

Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

1100

which types of relay used in acb and vcb?

1778

explain safety measures in alternator?

866