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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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,

4 3002

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

Spec International,

1 1464

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

Bhel, ONGC,

1 2207

How do apply electrical 'c'license......pls advice

772

Advantage of earthing transformer

EID Parry,

2 1696

what is the calculation of power factor?

GATE,

4 2066

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

Indian Railways,

2 2316

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

Indian Railways,

1 1529

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

1 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 ?

Reliance,

996

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

Bhel, TNEB Tamil Nadu Electricity Board,

1062


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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