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Engineering Interview Questions
Questions Answers Views Company eMail

how a train take turns though there is no differential gear?

2 14919

what is the voltage present in the telephone?

Infosys,

10 13487

why do we connect droop ct{in gensets}in y_phase only

2 8152

HOW DG WORKS ?

3 16858

Does the dg syncronization sucessful in practical.

2 4496

is a normal conductor can be used a core in windings if not what is the winding core speciality.

2 4547

can we light the mercury vapour (tube light)with out a 1).starter and 2).choke in our homes if yes explain how?

5 7795

kindly,plesae tell me # the working of BTS # ITS CARDS SPECIFICATION # WORKING OF TRX,DUPLEXER,ASMA CARDS,FIFA # HOW WE ROUTE TRAFFICS # FLOW OF SMS,HOT CALLS,CALLS ETC

1989

why most of the induction motors are delta connected?

7 27645

Can we connect two or more energy meters/Amp meters on one CT set(Three phase).

Parle, Watermark Engineering,

5 27926

How to calculate the actual 3phase power, if the load current of each phase is not balanced

2 5099

why air handling unit interloking in case of fire

3 6191

How to calculate the KA rating for a circuit breaker if we know the KVA rating of the generator feeding it?

2 18590

1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

2228

11. As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why? 12. How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test? 13. Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV, 20kV, 30kV? 14. Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it? 15. Explain why the Voltage drop will happen in 3 Phase line? 16. What is the equipment used to control the generator output? 17. What are the factors to be considered during the Synchronization? 18. What should be value of Circuit breaker operating time and tripping time? 19. Why the CT Secondary is rated as 5A generally? 20. At which time Synchronous generator act as a Synchronous Condenser?

1 5634


Un-Answered Questions { Engineering }

what is ISDN-PRI Support

1088


Which woman astronaut holds the record of spending most time in space?

707


what are the sample questions asking to the test cunducting for electrical superwising lisence test?

2134


How can I see where pipes are behind the wall?

1087


What is monotonic dac?

1035


Give the typical value of bias current for ca741 operational amplifier.

969


how ratio is calculated for any grade of concrete. for e.g. sppose M20 requires(x;y:z) quantity of cememt sand and aggregate.

2021


Write a function that responds to a click anywhere on the page by displaying an alert dialog. Display the event name if the user held Shift during the mouse click. Display the element name that triggered the event if the user held Ctrl during the mouse click.

2012


Why we use circular(Stepped) cross section in transformer core?

2192


please send the sample qustion paper for iocl written test ..

3661


does a b.tech civil engineer fresher supposed to know how to design rcc structure?

3398


Why hydropower stations are preferred solution for meeting peak loads in grids?

943


What is meant by fm control in a dc chopper?

1343


Explain the Zardosi work

5


what is the formula to calculate voltage drop/loss on 66KV Transmission Line?

3635