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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why the motor is rated as kw& transformer as kva

Areva,

7 9094

hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

1278

why America use 60HZ 110V?

Kalindee Rail,

4 11890

1)what is hypo test. 2) which cable need to hypo test.3) when hypo test can be done before or after glanding.4) what is the purpose of hypo test.

5 35357

WHAT IS SITTING AMPS IN OVER-LOAD RELAY FOR 1PH OR 3PH MOTORS?IF ITS NAME PLATE GIVEN MAX AMPS 10AMPS?

1186

WHAT MEANT BY SEVICE FOCTOR?

2 3160

what is the accaptable voltage between neutral to earth & How to reduse the resistance of earth in chemical earthing

4 4592

what is the meaning of Dd0yn11

2 9880

HOW TO CALCULATE EACH PHASE CURRENT WHILE A MOTOR CONNECTED TO STAR- DELTA STARTER?

3 5839

1.what is the difference between MPCB and MCB ? 2.what is the difference between MPCB and MCCB ?

6 43807

Why r used of cable 50sq.mm and above size cable in 3.5 core. And below size in 4 core ? any technical reason please explain it

2 3862

why we are using DC violtage for testing of cables....which is used in HV AC applicatons...

1 3618

WHAT IS SITTING AMPS IN OVER-LOAD RELAY FOR 1PH OR 3PH MOTORS?IF ITS NAME PLATE GIVEN MAX AMPS 10AMPS?

1 2717

transformer 3 ph, 225 kva pri 480v, sec 208v. primary neutral connected to system, is secondary neutral to be grounded and how

1 3064

how ELCB drip when earth and phase touch together?

2 4306


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Un-Answered Questions { Electrical Engineering }

v/f drive basic princeple

1745


Can you explain about TEE protection scheme?

1565


How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?

1352


1.what is the reason for transformer and lightning arrester blast in 33kv system

2314


BSNL TTA EXAM QUESTION

1550






Any one can explaination about calibration with rotating sub standards?

1345


Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set

1545


What is power factor why we should maintain the power factor unless what will happen

1029


What is open loop and control loop systems?

482


how we can do the insulation on secondary of ct explain and so that tan delta will within limit

1274


What is time invariant system?

498


What is dc current source? Differentiate between ideal and non ideal current sources?

554


Why is the frequency not changed during transformation of electrical energy in a transformer?

587


Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

1179


What is called grain-oriented laminations?

450