Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why do we use magnetic contactors ?circuit breakers are not enough?

5 21826

why the generator efficiency is greator than motor?

4 13979

Wheather there exist any dc transformer

6 8790

wheather the size of windings in motor and generator are the same

1498

how the inductor will work on dc supply?whether it will work or not?

NTPC,

11 20358

please give me solution to rectify the emi(electromagnetic interference)

Powergear,

1434

What are the different pre-commissioning tests that are performed on the distribution transformer, power cable and switchgear (11kv)?

Hitech, Reliance,

1 11361

Tell the details of the precommissioning tests that are performed on distribution transformer, power cable and switchgear (11kv).

Reliance,

1 2956

Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me

Sail,

1616

DESCRIBE THE CONSTRUCTION ANDOPERATION OF BELT CONVEYORS AND SCR CONVEYORS , DRAW NEAT SKETCHES

1618

DESCRIBEPNEUMATIC SYSTM OF ASH HANDLING PLANT

5010

EXPLAIN THE ESSENTIAL FACTORS WHICH INFLUENCES THE CHOICE OF SITE FOR A HYDRO ELECTRIC POWER PLANT

1546

Hy the hydro power stations have high transmission and Distribution costs?

3 9636

HOW DO WE COLLECT THE SOLAR ENERGY AND DESCRIBE THE METHODS TO CONVERT THE SOLAR ENERGY INTO ELECTRICAL ENERGY?

1 9468

WHY IS THE UNITY POWER FACTOR NOT THE MOST CONOMICAL POWER FACTOR?

3 18581


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Un-Answered Questions { Electrical Engineering }

What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.

1920


how mass curve differs from hydrograph.

1283


What is Tachometer used to measure?

729


Which type of a.c motor is used in the fan (ceiling fan, exhaust fan, pedestal fan, bracket fan etc) which are find in the houses ?

586


What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.

1491






how to estimate wiring ins roughing ins. and boxes

1944


what is PID control in VFD drives?

1493


PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

1704


HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?

1552


some basic standard questions on transformer.

1317


Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.

1178


WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?

1674


What is the normal phase difference between the voltage and the no-load current in a transformer?

680


hi....I am from india..i have completed my engineering in electrical and electronics field with 58.4% and my IELTS score is 5.5 bands....Recently i received my I-20 in computer and information science from Troy university in Alabama.On 18th i have a visa interview can u please tell me what type of questions i have to answer ??????

1397


what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?

1439