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

difference between aerofoil meter and orifice meter

Cethar Energy,

2436

Why is DPC not provided at sills of doors?

Simplex,

3 12748

How can we find out the clear cover for a circular ring and rectangular ring..

1 2585

Client server applications

TCS,

1913

What is the cost difference between site mix and ready mix concrete per cubic meter

L&T,

1899

why capacitor offer reactance to alternating current?

Electrical,

1 2968

Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?

1876

How to calculate the breaker's short circuit current?

1 3860

why curing is necessary? Please explain it with detail

2 4891

What is a “proximity probe” used to measure?

Mobius, Tech Mahindra,

1972

what is the difference between highway and motorway?

2362

what are the differences between Tie beam, Ground beam and strap beam. thanks

1 19903

how to calculate efficiency of voltage and current controlled welding transformer?

1 2852

How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)

1718

Rccb trip or not with out neutral connect in three phase welding machine

1 4114

Un-Answered Questions { Engineering }

what is the types of transmission

2077

Why the ammonia and Nitric Acid level indicators is with millimeter ? and What is the conversion form millimeters that level indicator indicate to weight ?

1847

area control error

1743

specific difference of ICT&Auto Transformer

1900

what is meant by csr in foundation? what is sbc?what is meant by contour line?

2392

What is meant by saying at what current is transistor biased?

969

How much waterproofing compound in one Sqm Plastering (thick.12mm)

1869

What do you mean by donor and acceptor impurities?

1056

How long does it take concrete to harden?

1176

Can anyone send me question papers for section engineer for railways and send me on my id- abhay_jg@yahoo.com

2053

What is the percentage of carbon in cast iron ?

1071

differance between radix sort and radix exchange sort

3252

Dear sir, How to calculate 3.5 core pvc aluminium armoured cable meter wise carrying amps rating.Please give the solution with a good example.

1898

IS code for Rolling Margin of steel

2487

What are some typical applications for glass-lined reactors?

1079

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