Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to parallel a alternator without using synchro scope or lamp methods

Ofer,

1 2299

what type of motor used to move a 1 ton gate? and relate ratings with load.

Khidmah,

1322

What is the working principle of servo motor? And explain it.

1380

What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.

PNG Power,

1274

What are the roles and responsibilities of electrical engineer in cement plant

1491

If the secondary winding will be open in current transformer, how to damage the insulators

TPDDL,

2 2859

What is the arc. I saw word arc in between sf6 & vcb brakers

Cap Gemini,

1 2665

How to calculate the fuel consumption for 600kva DG genset which connecting with 25%load?

Debbas, GE, TCS,

1666

If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

Usha Capacitors,

1817

Can we check ELCB constantly from R1 to R8 phase in 1 no DB?

Legrand,

1200

What the full form of KVARs

Siyaram,

2 2828

What are the safeties in elevators?what is the use of governor in elevator?

JLL,

3 3543

Explain what happens to the speed of a series motor as the load decreases

1 4410

Sir we are using 250 kva DG its Diesel consumption 25 lits / hrs maximum load 160 kva now how to calculate units/ litres

1 2004

for 24000kv transformer what is the value earthing resistence?

1 1803


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Un-Answered Questions { Electrical Engineering }

Both generator parallel condition shared load equally but one genrator taking ampere more than the other what are all the causes to make like this

1212


sent to a site and asked to explain how you would like a twenty seven flour building should be supplied with lighting and sockets plus a water boiler.

1467


What is big transformer parts and their function ? Ty

1646


Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet

2027


How to test Alternator stability test for REF relay

938






How o select the electrical fuse?.What are its characteristics.How to select the material od fuse?

1453


The screw thread commonly used for transmission of motion is one of the following types of threads

674


why the neutral line is not giving shock to us if we touch it ?

1308


what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?

911


Why the moulded plug comes with domestic appliances instead of assembled plug like anchor, Vinay 5/15 A.

1539


why only exciting current is shown not primary current in transformer???

1362


what is the function of bearing in dc mchine" and where it is placed

2047


3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?

1363


What is the earth treantment procedure?

1586


What do you mean by a current transformer?

620