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Engineering Interview Questions
Questions Answers Views Company eMail

A 3 phase motor operating off 415V system is developing 20Kw at an efficiency of 0.77 and power factor of 0.73. determine:- a)the line current. b)the phase current if winding are delta connected. c)the phase voltage if winding are star connected.

1 3070

what is negative phase sequence

1 2942

in ups how we can calculate the battery back up time

1 3860

Whether capacitor loads can be connected for testing a diesel engine at its full load capacity? Is there any limitation of capacotir load? Which is the best load for testing DG sets?

2 4499

Can someone guide me about the written test paper pattern for s/w engg having exp of more than 3yrs.will it be technical or aptitiude?

1881

how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours

MRF,

2297

why unix commands simpler rather than complex task

2896

In Which vector group power transformers are mostly manufactured?

MRF,

1 4289

When VFD is connected to a 3 phase main supply there is load current difference between incomer to VFD and outgoing from VFD.

Shasun Chemicals,

1 5775

What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

Shasun Chemicals,

2215

How will u convert the mmh2o in mass or Volumetic flow rate in DP Flow Transmitter. Give me the Brief explain using the formula

Walchandnagar Industries,

1 16736

two way ckt diagram can be drawn by how many ways? give diagram

1774

AVR is used for the Voltage regulation of the Generator using the feedback signal by exciting the field winding of the generator.But how the field winding will be excited & using what?

Alstom,

2 6391

In micro controller individual pin output current is 1.6ma .Normally to blink a led we need minium 10-12 ma. But if we connect led to the micro controller pins without additional device it blinks. How it is possible

2063

Micro controller input pin voltage is max 5v. If i want give 50 0r 100v input pin. whether is it possible

4 6578


Un-Answered Questions { Engineering }

how to calibrate mass flow meter (Coriolis)? Example calibration range: 0 to 2500 kg/hr line size 3" fluid: Etheline glycol (MEG)

2685


What is capacitor?

1231


Why are lt windings placed near the core?

1091


why single CT used in DOL starter power circuit?

2525


How does a battary stores charge in it? please explain in simple manner and in detail.thanks

1983


Witch do depand of Power factor and theory of power factor?

2096


On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

4376


How is calculate the cube molt

2268


How to find DG efficiency and unit per litre

1520


what is the trignometry of lifting tools using the wire rope ? any formula for trignometry ?

2053


what type of question has been asked at schwing stetter

4581


What is the constant voltage unit?

1078


Explain metallurgical microscopes?

956


i m doing my 3rd yr with only 6 month left to complete it..within this 6 months which is the best nd useful oracle certification program should i do??pls help me out!!

1646


what the Microsoft .NET framework is?

2002