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Engineering Interview Questions
Questions Answers Views Company eMail

how much test voltage should applied for tan delta test.

Electrical, TATA,

2 4657

What is 11 N1 and 12 N2 in single phase Transformer ?

 1500

How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?

NA,

1811

While connecting the flood light plug on to the 415 V distribution panel,there was spark and the cable got burnt. Three ignitors of the flood light also burnt of. The lamps are of 400 W (total 6 lamps) connected through 1.5 mm2 cable. The plug was immediately removed from the circuit. There was a 30 mA RCD connected and a 250 A MCCB; however both did not trip. What could be the possible reasons for the circuit devices not to trip?Can someone assist please. Additional info if needed can be provided.

 2 3559

Dear All, How can I make 5VDC with 500mA current rating from our 230VAC. Can anybody help me with different answers? I am Ansari-9820016777.

TCS,

4 4745

What is the main difference b/t Earth leakage relay & Earth fault relay.I want protect my LT panel(Distribution Panels)which relay have to propose.......

 1 3603

hi dear friends i have applied RRB exams SE so i need previous year question papers please send to my mail id santhu.hpt@gmail.com

 1435

HOW CAN YOU RELATE THE FUNCTION WITH STRUCTURE EXPLAIN WITH APPROPRIATE EXAMPLES

 1388

WHAT IS THE MERITS OF INTERNAL COMBUSTION ENGINE?

 1 3638

what is the differnce b/w aerodynamic balancing & mass balancing

Aeronautical Society of India, HAL, Swajas Air Charter,

3 10693

What is the difference between neutral and ground?

Cethar Limited, Torrent Power,

3 6635

How many types oil using in transformer ? How many letars using in transformer..?

TATA,

1546

What is the spacing of chairs in reinforcement steel.If it is written in IS 456:2000 then tell me the page number.

 2 6559

what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded

NTPC,

1642

In a 11KV 3phase system do you need to earth both sides of the cable?

 2 5126

Un-Answered Questions { Engineering }

how to control pid

1453

What kinds of pipes are used for steam lines?

686

explanation of mesh bus bars

1677

Pls tell me whether we can use EN3A material for shafts of Permanent magnet alternator.What will be the effect of magnetic and nonmagnetic material for shafts on magnetic properties of PM rotor .

2995

what are the interview question asked in wind mill about electrical

1921




what is effect of length of air gap on performance of dc motor and generator?

1329

Why does mode in arm in cpsr have 5 bits instead it can have only 3 bits to define all the 7 modes?

564

How to get KWH,Voltage & current datas from 2KVA hybrid inverter to my computer

1472

Explain the different printing techniques?

5

How do i carry out or know the vector group of a Dyn1 and Dyn5 transformer

1553

In three pin plug 6 amp. 220V ac rating. Why earth pin diameter is higher than other two pin? What its purpose ?

716

1)How many tpes of vibration probe and how many tpyes of vibration. 2)how we can calibrate a vibration probe with tk3 3)what is RMS value in vibration measuring application and how we calculate it.

1888

Define negative logic.

679

what is difference between speed mode and torque mode in motor?? explain in simple words please.

1149

What are the advantages of projection welding over spot welding

595

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