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

what is vacuum....?

UPL,

6 9568

how to calculate the cable size depending on the transformer rating

2 5729

what is the meaning of impedance protected in instrument cooling fan

3546

if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm

2251

Why infinite busbar has zero resistance and high mechanical inertia?

1 4121

Why the transformers making noise?

L&T,

2 8572

In Indian Railways , how the AC motor is driven? Please explain clearly starting from the overhead 25kV supply.

1 4102

In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

2031

what are the steps of syncronizing the generator with an infinite grid?

Genco, Orient,

3 9581

In a 132KV Grid Station where voltage level is 132KV, here, why the rating of Surge arrests installed 120KV ?

1 4745

one cricket ball through in chennai and jaipur same speed where bowl has fast speed

1 6765

what is the best way to start a 15 KW motor for pump star-delta or direct on line ? and from how many KW i must use direct on line ?

1 3584

which has more heat effect(dc or ac)

CCEL, TATA,

4 7895

How can we prevent the (Home)inverter supply flow to the main supply line?

L&T,

1 3610

what is all types of analyzer in water production plant?

Marafiq,

1 3247

Un-Answered Questions { Engineering }

Define what is tunnel diode?

1104

What is the difference between proof resilience and modulus of resilience ?

1223

How to convert a two phase power into a three phase power in induction machine?

1813

HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS CALCULATIONS)

1948

How the engine does start working when we start our two wheeler?

1005

Which reactor uses primary coolant as fluoride salts of lithium, beryllium, thorium and uranium ?

1247

contractor receive 100 MT steel.after compliting the work the contractor refund 90 MT steel.How reconsilation of steel done?

2337

"In a four-stroke diesel engine, In what engine exhaust valve will open?"

1776

Enthalpy and entropy are functions of one single parameter. Which is that ?

1122

What are carbides?

936

What are the main different elements of visual merchandising?

what is positive , negative & zero equivalent system resistance

1941

why only exciting current is shown not primary current in transformer???

1869

Explain the difference between pipe and a tube.

1101

What do you mean by dyeing affinity?

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