Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Engineering Interview Questions

Questions Answers Views Company eMail

As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?

2 5231

What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

6 10042

How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

3 7824

Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV,20kV, 30kV?

Bhel,

2 7702

Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?

4 10397

Explain why the Voltage drop will happen in 3 Phase line?

3 7740

What is the equipment used to control the generator output?

3 5988

What are the factors to be considered during the Synchronization?

3 6935

What should be value of Circuit breaker operating time and tripping time?

5 15092

Why the CT Secondary is rated as 5A generally?

2 5931

At which time Synchronous generator act as a Synchronous Condenser?

1 6636

What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

2 8094

What are the protections to be used for Generator?

3 6349

Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

3676

What happens when the polarity changes in CT? Explain briefly?

8 31424

Un-Answered Questions { Engineering }

What is the state if the RED LED is glowing on DVxx card What is the state if the YELLOW LED is glowing on DVxx card What is the state if the GREEN LED is glowing on DVxx card Which frequency band DVDC is used Which frequency band DVGA is used

1978

How much steam required for 1MW power production form 30 bar G super heated steam(350 C), outlet of turbine 4.5 bar

2164

if we not carried out B check at mean time in DG set what will be happen?

2065

Define silk dyeing?

How would you choose differential range?

1175

In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?

3252

Describe the working of dual converter?

1180

Explain RLC circuit?

1185

Do the design & fittings depend on the type of the vehicle engine? Why is petrol used for engines only & vice versa.

935

I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?

2044

How to find out damper winding failure for synchronous machine?

1525

Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

1868

In Plumbing services What are accessories we consider for a bathroom?

2005

what is booster? and how it is connected in a circuit?

2631

What is condensate lift?

1195

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