Engineering Interview Questions
Questions Answers Views Company eMail

if the transformer at full load have a iron loss =900w and copper loss = 1600w . what percent of the load will the transformer has a maximum efficiency?

3 15681

wht is mean by dpt(differential pressure transmitter)

1 4833

how determine base of given number like 302/20=12.1

2 9259

what is tri state logic gate

1626

what is coordinate measuring machine, how it work,how accuracy of machine is defined also give me question and answer related to cmm vindudh@yahoo.co.in

2 9933

why our power production in multiples of 11.

ABB, Infosys,

2 4440

if name plate detals of a motor or any other is missing then how to find it

1 3724

how to ctrl motor by use of ac or dc drive.plz explain evdintly

1490

What is the working of centrifugal switch in 1phase induction motor

1541

What is mean by R, Y, B, Bk in wiring???

1 3978

how to calculate H.P of a moter from speed of a moter?

5 6011

how to calculate P.F from kva only?

3 5007

sir iam doing diploma in mech.engg i need a details of jcb 3dx model plz sent me detal in my email id- rahulchugh33320@gmail.com

1646

what is the difference between equipment earth and system earth.

Hofincons,

1 4811

instrumentation

Tata Steel Limited,

1 3777


Un-Answered Questions { Engineering }

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1567


What do you analyze from boiler water analysis?

1629


What is the purpose of load extension graphs?

740


1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

4284


Why you are leaving present job?

1614






What are the Return ( Monthly / quarterly/ Annual submitted to Electical Inspector for an establishment (Factory in Maharashtra-- Small scale category having seperate HT line of 22KV ) as per Maharashtra Electricity Act

1592


What is the specific speed of a pump ?

627


What is a radial-flow turbine?

700


explain with diagram how to protect transformers and substations from over current with help of CT's?

1510


What device installed in the F.O. system when excess oil return to drain tank?

1460


What are the applications of a series inverter?

755


what are different types of electrical windings? i know the distributed winding ,concentrated winding etc but i want some detailed information, in what condition we will use distributed,concentrated windings what are the difference between them which is best, how induced emf changes by using different types of windings 20 hours ago - 1 week left to answer

1528


what is civil enginnering & what you need of this course?

1803


How will you size a pipe?. What is Darcy's formula?. From where you will get friction factor "f" ?. In darcy formula substitute f = 16/Re and now you see hf proportional to V instead of V square. How do you explain?.

1744


What are advantages of dc supply over ac supply?

578