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Engineering Interview Questions
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We have a 1275KVA existing Transformer in a power plant project. Customer want to get it test & confirm whether it is a Dyn1 Transformer or not. Pleae let me know how to test it.

Allied Group,

1 3179

why Transformers power mentioned in KVA?. and why Generators and Motors power mentioned in KW?.

 10 11963

What is the actual calculation for transformer short circuit test?.

 1984

What is the purpose of Rotor earth fault relay and How to test the Rotor earth fault relay in generators and What is the procedure?.

 1 3554

we have read that when the piston goes up and down then the engine works i.e. the suction,compression etc etc. then what happens in the case of big vehicles, which start at stable condition, i.e. how does their piston moves when they are at rest. how suction,compression etc

Bhel,

5 6029

why there is no current in the rotor body althrough the flux linking with it also get changes. why current only flows in windinds not in rotor

Vedanta,

1 4583

why we use condenser in the thermal power plant, althrough the same vapour will be again heated

Bhel,

1672

what is work of planning deptt. in any construction compny (in road project)

bscpl,

1889

what is workmanship.

 1 2530

Types of pile, which should be prefer in sandy soil

 3 5817

Why motor is not calculated in kva, whereas transormers are calculated in kva

 2 4455

WHEN SINGLE PHASE SUPPLY AS 220V, WHY THE 3 PHASE- 4 WIRE MEASURED AS 440 VOLTS INSTEAD OF 660 VOLTS (220 VOLTS PER PHASE i.e 220x3 = 660 volts ).

 1 5583

What is the difference between Split ring and slip ring?

 8 34795

we specify current in case of feeder but in case of distributor voltage, why?

 1381

In case of salient pole alternator when number of poles are 4 or more than 4 it helps the flux wave to be sinusoid as air gap length is increased from center to tip , but if the number of poles are 2 how does the flux wave is sinusoidal?

 1531

Un-Answered Questions { Engineering }

Explain the causes of the exhaust valve leakage.

1387

how many types of spped sensors n vibration sensors?their basic principle n connection?

2081

Explain why gas containers are mostly cylindrical in shape?

660

which metal is use in shunt

5242

why mechanical engineering in US universtiy??

1716




What are the differences between 1 dimensional RAM and 2 dimensional RAM?

2192

What are the special cables required for explosion proof wiring?

2985

How can we increase the capacity of Energy.?

1685

What technology is used in latest generators?

1642

What is dma channels?

609

What is the effect of positive feedback on the stability of the systems?

649

While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?

3070

what is mean by restructuring power system?

1552

what is mean by oracle?And how it is used?

1422

What are the advantages of pwm control?

649

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