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Electrical Engineering Interview Questions

i want to know about psu exam eligibility critaria?

ISRO, PSU,

7198

What is differance betwwen Conventional MCC & Inteligent MCC?

4205

where we use 1 phase & 3 phase supply ?what is major advantage using 3 phase over than single phase ?

4194

i need 24v dc from 230v ac supply how we can getit ? what are the devices &its rating requied for that ? plzz i need answer urgently .thank u

7188

What is the operating range of voltage and current in grid supply in India?

BARC,

6036

can we produce cosine wave instead of sine wave? will it usefull?

BARC,

6985

what could be the RMS value and average value of a 4 phase sine wave?

BARC,

1056

BARC,

17683

What is the operating range(tolerance) of voltage and frequency of grid supply in india?

BARC,

15989

whenever any squirrel or a crow falls on the transformer input line then there is a big explosion and 440 volts of power is being discharged through the neutral line due to which appliances in off mode are also burned.we have earthing for the transformer as well as the bus bar chamber.why is it happening?

1483

Can we use HRC Fuse inplace of Semiconductor fuse?

4731

What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?

1064

While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?

2566

a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?

5075

How we can design a cable for a 3phase load.

5270

Un-Answered Questions { Electrical Engineering }

What is a copper loss or i2r loss pc?

261

draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.

1078

What is the Current equation in series RLC circuits.

240

why in the three pin plug all 3 pins are cutted ?

1087

How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.

900

How to decide and select the different earthing wire size for the different types of earthing

1430

What is T’Q and X’Q and X’D ? and what is saturated as well as unsaturated ?

886

What are unstable systems?

228

What is meant by reverse polarity and how it can be fixed?

286

Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

223

What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

1091

Explain how you intend to work under pressure to meet up with deadline target?

1560

what is the purpose of high speed earth switch in gas insulated substat

2108

how much flux density of CRNO core

1828

Why induction motor is widely used in industry

1838