Electrical Engineering Interview Questions

How a ship getting grounded

2582

How can eliminate noise problem inside temperature controller temp. variation due to contactor chattering problem.

1229

How impulse levels are calculated that for 11kV impulse is 75kvp, for 24kV impulse is 125kvp ?

L&T,

1605

auto reclosing scheme for radial ehv feeder is to be implemented or not?

1808

Hello,l am complete dip and i was working maintance in ht dep again i study b.e completed again one year exp in ht totally two year i am ealigble in c license

1881

how to decide no of electrodes for 1600A LT Main incomer panel

1223

We have three phase dg of 12kva rating.If the load of each phase is not constant.That means one phase drowning more load than remaining two phase..Then what will happen to dg?

1749

After synchronizing the running generator with grid, the avr getting tripped and the generator breaker also oettong tripped, before tripping the avr the pf meter of generator is showing leading pf please kindly give a suggestion to rectify this problem.

2502

in india single phase is 230v and three phase is 440v but in other countries single phase is 110v and three phase is 380v why..?

2537

What is the ideal position cooling fan inside the dc motor?

1689

Can XLPE/SWB/PVC (P3) 7C X 2.5mm2 be replaced by Can XLPE/SWB/PVC (P2) 7C X 2.5mm2??? P3 vs P2

PCSB,

1427

12.5 tons a/c is their how much kva generator can recommend to the customer.

1542

Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....

1300

What if the difference beween internal and exrteranal LBB?

1263

How calculate the MTA in relay?

1948

Un-Answered Questions { Electrical Engineering }

sir iam from electrical and electronics branch ,can i appear for the hpcl offline requirtment? if yes please mail me on vikram_raju25@yahoo.co.in

1585

how generator load test is conducted?what are the steps?

1178

1 Ton is equal to how many watts?

723

Why the efficiency of generator is more than motor in swinburne's test

1627

i have completed deee and i've (June2012-feb 2015 experience in electrical maintenance in pvt ltd company.company having HT & LT electrical power.how to apply electrical C-license ,NOW I was resigned my job,what are requirements of applying for c-license

1356

when qty of cable being purchased is not sufficient according to the standard,what should the inspector do to ensure its quality according to the standard?

1594

A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03

1642

2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping

1499

at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?

1435

what is the function of gss in the dg set.

1523

ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

1917

While testing LA mast,What are the parameter limits ?

1496

How will calculate losses in an multi core Aluminium LT cable of different sizes & upto what length we can use a LT Cable ?

1711

What are conduct on the testing in cf in ur site?

1226

mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....

1527