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

how we can know the rating of transmission line by no. of insulators disk ??????????

NTPC,

3 23105

how the phase convertor changes the no. of phases

2013

what you mean by current? what you mean by voltage? what is difference between star and delta connection in motor side?

Adani,

2 5927

how we can classify the circuit braker???????

1 4344

which seven wonders are selected in india in 2008-2009

2 3986

What are the rating wise protections required for Generators from 600KVA to 2000KVA

3 5110

i want a program in c# for 100 or for a number greater than 100.....pls help

1920

testing of Vector Group – YNaoD II

2955

For how much time F-1 vissa is valid?

2015

When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?

2078

why...? turbo charger used in DG....?

Infosys,

7 9540

Whal will be the HRC fuse rating of a 3phase 415V,50Hz,0.85pf,95%efficiency,30KW,1450rpm induction motor,starting with a DOL starter.and describe the Fuse rating calculation.

1 9082

Dear Sirs, I am a technical persons.In one of our Electrical Sub- Station, We have installed three numbers of 1250KVA ,11KV/0.415KV Transformer to feed the Factory load. We have found some abnormality. In one of our Transformers the leakeage current from transformer body to earth through earth continuity wire is almost 86 Amp but in other transformer it is (5-10)Amp. where the load current on three phase and neutral are respectively 1360Amp,1400Amp,1370 Amp & 176Amp. So please any technical person help me about the reasons of this situation and how I can rectify the fault. Moreover,I have measured the earth resistance of the Earth continuity wire which is less than 1 Ohm. Thanks Tapas Barua

3 5931

What is mean by ITP in a construction project

6 50511

The Design Calculation of Level Transmitter For Different Structure open & Closed Vessel, Eg. Diff. Level Tx., Capacitance For Continous Operation

Reliance,

2865

Un-Answered Questions { Engineering }

why servomotor motor? where i apply for best output?

2056

please send the sample qustion paper for iocl written test ..

3729

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

2693

What is an injector pressure in heavy vehicles?

1033

how to make resume and what should I include in it?

2222

what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..

2050

What's mean HVF & HAF in Vacuum Circuit Breaker?

5372

Explain what does green field project mean?

1134

what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded

2156

An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The slip when motor stalls is A 1 B 0 C 13.33% D 10.33%

1953

What is difference between YNyn0 and YNyn ??

2577

1. Describe a time when you anticipated potential problems and developed Preventive measures.

2210

What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer

1909

Explain why is a vacuum breaker used on shell and tube heat exchangers that are utilizing steam as the heating utility?

1049

What are the causes of boiler backfire and steps in how to prevent it from happening?

2045

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