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Engineering Interview Questions
Questions Answers Views Company eMail

what is the use of providing earthing for tanks? i know for lightning we use earthing ? Here one of my ONGC project there is no need of lightning protection and there is no power connection near by tank in that situation also ONGC asking earthing for tanks but we didn't understanding why they asking earthing? is anybody tell exact answer?

4 5747

what is the importance of signals and systems ?

ABC,

3 17867

WHAT IS ARROW DISPLAY IN TRANSISTOR SYMBOL DIAGRAM? IN NPN AND PNP BOTH?//

Bhel,

3 8993

If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?

Posco,

2063

What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?

2088

How Can we calculate the rating of a cable?Show the formula?

Jindal,

2 6888

we have 2 O2/Comb Analyzers Servomex Model 2700 in service for one of the furnaces in our chemical plant. It is giving High Temperature Alarm. Checked Temperature and found it to be 800 Deg C whereas Set Point is 700 Deg c. It is strange why is temperature not at SP. Also response is 23 % with 21 % Inst Air and with N2 reading is not coming down. please clarrify this issuses very urgent

1 4087

What is CVT and what is relation with wave trap?

2152

why do we prefer VCB over OCB? what are the advantages of Vaccum Ckt. Breaker over Oil Ckt. Breaker?

2 9581

Which test will be more severe for VCB?

CPRI, Reliance,

2654

what is the Transformer Impedence?How can calculate?

2096

what is the different beetween kva and kwh?

4 6466

What will be happend if we not ground CT secondary?

Enercon, Engro, THDC,

3 8327

Why is a dead weight tester so called by that name?

SGS,

1 3179

What does PCU means with respect to Dead Weight Tester?

SGS,

1 3331


Un-Answered Questions { Engineering }

What is FM200 Gas??Applications........

2373


installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,

2127


what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?

1968


can any one help me out by posting something related to rvnl interview for site engineer electronics (S & T).? what is the procedure? what type of question they generally ask? how long the interview goes for one candidate? and any tips ??

1933


what is the criteria for selection of conductor used for ehv ac electrical dischrge

2096


Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?

2031


what different types of problems do occur while doing instrumentation commisioning and how to solve them? please explain in detail

1752


why 5kW motor becomes unbalance if its relay trip 1st time and its set value is 7.0 A

2009


How we can read an Image in VC++?How we can find out the intensities of the pixels of an image and dimension of the image?

2237


Explain the day to day responsibilities of aerospace engineering?

1050


why traction voltage is 25kv

2219


please provide me the previous technical papers for ece branch conducted by hpcl

2067


how statics is different from dynamics

1667


Which heating value is indicated by a calorimeter and why ?

1133


how we can calculate the load appeared on programable logic controller.and what is the method to calculate the scan time of PLC.

1597