Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why an ac solenoid valve attract the plunger eventhough we interchanges the terminal?will the ploes changes?

1 3592

explain harmonics in simple words..........

HMT,

3 5797

why we are using large cross section cable at load side and small at other (11kv to trsfr)side of transformer? when the load increses current at both side increases,right?

2 4418

What is the value of specific gravity in charged lead acid batteries.

11 12966

Whether the Dc motor Droping the power factor like AC motor if lot of motor running in factory is it necessary to connect capacitor bank

2 3725

what is restircted earth fault relay,how it works? what is diffrance btwn normal earth falut relay & restricted earth fault relay?

1 4723

what is the differences between microprocessor and general purpose computer

Stesalit,

1618

Describe the difference between a microcontroller and a general purpose computer.

Siemens,

2 6624

How wti of transformer works?

Vedanta,

5 25228

i want to know that how the height of Ct ,cvt ,LA calculated on the basis of creepage distance

Vedanta,

2022

How do u term the word 'OF' in Megger Testing???

2 4332

what size of copper busbar use for 11kv 630A

ABB,

3 9078

can you explain the rms value in simple words....

5 7209

How the surge voltage can be arrested in electronic devices

1 3205

how is the cable tray designed & how its total length is calculated for an Industrial plant Say for Ex. (500KW Motor Load)

1442


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Un-Answered Questions { Electrical Engineering }

What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?

2924


can u describe the method used for protection of transmission line.

1594


Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?

735


Formulae for calculating the transmission line losses for different voltage levels

1595


The shot circuit in any winding of transformer result? Explain

761






Why negative feedback is preferred in the control system?

827


What is current & voltage ? Voltage perform at any load without current or not?

1348


what is cascade speed control device?and how this device control the speed of motors?

1526


The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

1255


What is an iron loss or core loss pi?

605


WHAT ARE THE EFFECTS OF SERIES RESONANCE AND PARALLEL RESONANCE ON THE CIRCUITS PARAMETERS?

1467


How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)

1234


briefly explain the main blocks found in a microprocessor based system

1691


Why you want to join non technical field when you are an engineer?

6178


Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?

3790