Engineering Interview Questions
Questions Answers Views Company eMail

for preparation of design note of 11 / 220 kV , 3 phase, 63 MVA transformer how can calculate or consider the iron losses and copper losses

1 1344

How to calculate sand,cement for 1:5ratio brick masonary

IVRCL, Jamek, Prera Nirman Sewa, SPCL,

4 4866

what is the difference between rccb and elcb?

1 1810

Why is it that bus reactors are not accompanied by a neutral grounding reactor whereas a line shunt reactor is? PGCIL does so.

2 5106

What would be the quantity of cement:Sand:Aggregate (1:2:4) requirement for slab casting measuring 1mtr x 1mtr x 0.10 mtr (4 inches)?

564

Transformer rating=> 15/20 MVA.Why there are two raings? What should be the rating of the fuse at the secondary if the voltage level is 13.8KV/4.16KV?

Bhel,

1 3345

can we control operation of PLC from operator station?

3 2157

what is the reason for connecting hvdc monopolar line with negative conductors

321

On what principle the sonar/ radar works

3 3277

why to use 50hz only in tansmisson and as well as in distribution why not60hz?

2 1543

how many pulses are required by a ac induction servo motor of 4 poles with 50 Hz frequency to rotate by 1 degree?

United Phosphorus,

459

what is the exact difference between zener breakdown voltage and avalanche voltage??

TCS,

3 3399

In a overhead system why the voltage between line &ground is taken for basic comparison ?and in case of underground cables the comparison take only by the voltage between cables?

L&T,

1 1738

how dc generator produce voltage initially?

Bisleri,

1 1302

There is a toy train that can make 10 musical sounds. It makes 2 musical sounds after being defective. What is the probability that same musical sound would be produced 5 times consecutively? ( 1 of _____) ?

TCS,

2 2317



Un-Answered Questions { Engineering }

What causes diesel engine to automatically stop?

395


"How to check the diode, fuse and bearer switch?"

471


How can calculate the requirement of steel bars of rcc slab for 1100 sq ft?

200


What is the main difference between binary and counting semaphore?

445


in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformer 

177


If 24 KVA AVR having Input voltage 200-400v, Output voltage 415+-1%, what will be the voltage if Load is 13A.

486


What is the use of multi tester?

375


1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

470


how to find the capacitance value of the motor while running??

355


Hi guys! I buyed this clone carprog but i realized that not reading 24cxx. I tried 93cxx and 25cxx and it read.But 24cxx not.I tried to put external power.Of course the eeprom was soldered out.The interface is new and never read 24cxx.I tried many 24cxx .Is there a solution for this problem? I read in other forum that need to replaced 74hc125D with 74hc125M 4 pieces. thanks!

421


Define earth lamp?

395


What is normal radiation field out side the reactor building?

337


How do you design a system which is required to experience a shock force of 15G in 10 milliseconds?

430


sir i have 4 year gap in engineering. i would complete my degree b.tech it in 2014. it will be may be in 2nd class.my hsc is also with 2nd class. i am week in programming. Then if i want highest package upto 5-6 lacs then what should i prepare myself as a good engineer to get this package???

356


hai iam venkat iam appering RRB exam chennai on 23 nov 2008. pls help me wat kind of questions i to prepare? mail {venkiremo_krv@yahoo.co.in]

424