Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between series and shunt compensation using facts in a transmission line

College School Exams Tests, Genco,

8 42932

Suppose i Have an Ac motor of 25Hp 1500 Rpm 50 Hz Can i run a motor 2500 Rpm by AC drives by increasing a frequency either it safe or not ....

2 3249

what is the use of Reactive power

2 4575

1 KVAR = 1.3Amps but, 25KVAR capacitor/690V capacitor takes just 21Amps as leading current, what is the reason? Please explain...

1 7255

why we are 0.8 power factor only?

Suman Industries,

1 3689

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?

ABB,

7 8773

If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.

MEIL,

1459

What is a soft start?

Focus,

1 3779

IN CABLE TRENCH WHY FILL UP THE SAND. AND WHAT IS THE DIFFERENCE BETWEEN OVER HEAD AND UNDER GROUND LAYING THE CABLES

Cable Wireless,

2 12499

How to know the following data of synchronous generator 1. D-Axis Unsaturated Reactance 2. D-Axis Unsaturated Transient Reactance 3. D-Axis Unsaturated Sub - Transient Reactance

1462

what are the insulation properties.

Cable Wireless, MAHINDRA,

2 4758

what is mean by transition resistance of transformer?

3947

X is a uniformly distributed random variable that takes values betweeen 0 and 1.The value of E {X3}(x cube) will be.

GATE,

1 2639

If the rank of a (5x6)matrix Q is 4, then which one of the following statements is correct ?

GATE,

1 3737

An input device is interfaced with Intel 8085A microprocessor as memory mapped I/O.The address of the device is 2500H.In order to input data from the device to accumulator,the sequence of instruction will be

GATE,

1 5694


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Un-Answered Questions { Electrical Engineering }

How to test REF relay testing for LV panel as per Kahramaa standard?

4180


How to Calculate The Neutral Earth flat design calculation for the Synchronised generator (Gen 1-650Kva, Gen 2-725Kva

1180


Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??

1707


What type of a DC motor would you use for a lift?

659


We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.

1234






how we design a pannel to start 10HP motor with the help of star delta starter?

1728


Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?

1602


what is the difference between oil surge relay and buchholz relay.

6413


hi this is hema can anyone mail me previous years questions for the APPSC-A.E.E (in electrical stream.) ......thank u.

1450


what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)

1170


in science exhibition how lamp can blink when you clap near the lamp ? thank you

1482


What is FM200 Gas??Applications........

1903


Define peak overshoot.

781


How can we choose the rating of submersible motors

2149


Electrical 'C' license full abbreviation , and full form

1312