Engineering Interview Questions
Questions Answers Views Company eMail

how much current capacity of 300 sq. mm cable (4 core aluminium) and 150 sq. mm cable ( 4 core aluminium)

Bhel, RR Kabel,

3 27481

how much current capacity 250 amp. mccb please tell me about whats are the reasons to trip 2 or 3 times in a night. and what are the steps to short out this problem

Havells,

1 4449

What is the difference between power,voltage,current? and with example

3 4101

How to calculate the copper in HT motors if KW, RPM & Voltage is given

Control Dynamics, NTPC,

2589

Can you any explain about active,reactive and apparent power in power system with example.

1 2069

HOW TO SET THE EARTH FAULT SETTINGS IN ACB????????????

General Electric,

1686

1. why steel used in concrete

7 9827

I want to calculate the footing 90ยบ L bend as a techincaly

Construction, L&T,

1745

what is diffrence between catchment area,watershed and basin?

gdcl, Kalpataru,

2493

how many jack required in1sqm area

2 5614

In UPS, battery connections if parallel connection given, what will happen?

2 3718

when we select buildup beam

1 3621

Why earthing done?

CBRE,

1 4457

What is a fuse? How does it work? What are materials used?

1528

3) How earthing is done? How it measured? Write the method for earthing? How the earth resistance is kept low?

Innovative Energy,

1 4212


Un-Answered Questions { Engineering }

Can anyone suggest how to determine scheduling of reinforcement of floor beams from Staad model,other than clicking each beam respectively 7 noting down the values ?

1644


L&T construction mechanical questions

1013


what is Networking?

1694


diff between neutral ,ground,phase , earthing and shielding?

1867


Why Ac Systems Are Preferred Over Dc Systems?

784






3. Tell me about a time when you had too many things to do and you were required to prioritize your tasks.

1564


explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.

2204


How to calibrate an pressure gauge with yantrika test bench?

2370


Please help to write testcase for ECG machine

1444


Explain theory of thermocouples?

618


A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

4479


Unlike materials as well as materials of different thickness can be butt welded by ?

986


I have a current transformer with 1 main reading meter with transformer outside the building and a control panel having 5 CT reading meters with black round coils inside the building. I want to know, A) when current pass through the Transformers, will the current be reduced or be the same and after that B) when current pass through the CT meters with black round coils, will the current be reduced or be the same. C) in the above process will the reading of the main meter be same or different, from the total reading of all the 5 CT meters.

1372


What are the common sources of energy?

620


which protection used in power plant?

1500