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Engineering Interview Questions
Questions Answers Views Company eMail

difference between aerofoil meter and orifice meter 

Cethar Energy,

1 2489

Why is DPC not provided at sills of doors?

Simplex,

3 12919

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

1 2662

Client server applications

TCS,

1 1971

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

L&T,

1 1949

why capacitor offer reactance to alternating current?

Electrical,

1 3057

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?

1 1922

How to calculate the breaker's short circuit current?

1 3936

why curing is necessary? Please explain it with detail

2 4993

What is a “proximity probe” used to measure?

Mobius, Tech Mahindra,

1 2056

what is the difference between highway and motorway?

2444

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

1 20043

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

1 2919

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)

1 1766

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

1 4191


Un-Answered Questions { Engineering }

Draw the diagram showing the function stack, illustrating the variables that were pushed on the stack at the point when function f2 has been introduced . type def struct { double x,double y} point; } main( int argc, char *arg[3]) { double a; int b,c; f1(a,b); } f1(double x, int y) {point p; stack int n; f2(p,x,y) } f2(point p, double angle) { int i,j,k,int max;

2114


I want previous rrb enteranse exam papers in junior engineer(Signal/Tele/c&w). please send that papers to my id dkg_unnao@yahoo.com

3389


needed web address and its directory for objective type question with answer in electronics instrumentation paper.

3280


plz send me questions related to vlsi backend jobs....

3652


hey any one has sample placement papers for citrix r&d, bangalore, pls send it to me on ecpradeep2006@gmail.com, i have got my tests on 3rd sep

4456


where cascade loop use ?

1770


What types of high speed CMOS circuits have you designed?

2195


Hai Frds, i want to join in testing tools course, pls sugest good institute. And pls tel about Mind Q institute & phone num of Nareswar Roa sir plss, ple mail me plssssss

1917


sir plz send me BPCL recruitment(Engineering Trainee Electronics & Communication) sample question papers & Topics as early as possible

4684


Explain with diagram any one attachment.

10


please send me rrb gorakhpur je teli question paper

3776


1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.

3433


SIR,i am applying for the jr.engineer(signal)post.kindly if you send some previos sample question -answer i will be higly obliged

2278


Draw the space diagram for a ten meter long beam simply supported at each end?

1232


i have want jindalsteel tecnical wrritten test paper.

2425