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

We have 800KW motor operating at 6600Volt,50 Hz supply.During 1st startup it tripped on overcurrent trip.It's FLA is 88 Amps.The K factor of Thermal overloaaad was set on .94 initially.then we set at 0.97 and then it started fine.i dont understand why it tripped first?What are the protections which comes in picture during starting ?

6 9828

HOW MANY EARTHINGS REQUIRED FOR GENERATER

Juniper Networks,

10 19046

What are the methods of measurement? Describe it shortly

TATA,

2271

what happen when dc shunt motor field is sudden open in running condition

APGenco, Bhel, IIT, JMRC, TCS,

34 80149

if the magnetic lines can pass through a vaccuum area

1906

What Is Transformer Impedance ?

Con Edison,

6 16565

what is 5 element level controller using in boiler.

1 8200

How conventional fire alarm system works?

1 2742

WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?

ACC,

2138

how to choose the cable rating for load (KW)? EXAMPLE.50KW load

ACC, NCUI, Polycab, PowerSol, Siemens, SW,

14 172983

what happens when the profibus fails while in operation (operation of a valve)?

L&T,

5 12933

what is the difference between signal cable and ontrol cable?

Essar,

14 65869

whats the diff b/w mpcb and mcb?weather it trips on single phasing or not.

Electra Power, Essar,

9 17885

what are the safety measure & controls in engine?

RRB,

2 6988

Comparative difference between 33Kv & 66KV for transmitting the load of 7 MW at a distance of 34 Km.

NHPC,

6 15712

Un-Answered Questions { Engineering }

What are the different ways in which solids can be blended?

1061

what is Retainer?

2053

i have chines vehicle Grand Tiger now its AC compressor become jam what should i do i have not found new in market

2541

The screw thread commonly used for transmission of motion is one of the following types of threads

1152

dear sir i m anshul kumar from dehradun i want to last five year railway chandigarh and allahabd entrance exam papers pls send it on my id my id is anshuldhiman83@gmail.com or anshuldhiman@rediffmail.com i shall be very greatful to u thank u

2437

What parameters to be reported when we send lubricating oil for shore analysis?

1931

What is CCM in Electrical ? where can we use this material?

1474

previous year paper of ntpc bhel for degree in electrical enng

3219

what is education Cess.

2209

What is the release of lien?

1200

How can maintain our H.T. motors used in cement plant. please send me procedure.

5163

What is the use od d2?

1048

what is the difference between single ratio, multiple core and multiple ratio, multiple core ? please explain.

2211

Why are the uses 24vdc in industries

1035

What are considerations taken into account while creating a piston head?

1150

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