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

Neutral CT for 45MVA 132/11 KV YNd11 Transformer. NCT REF CLASS-PS or 5P20 with 20VA burden which is suitable.

1 3046

If a three phased motor or not working phased change on poles so how to find which one red yallow & blue

1 2744

What is difference between ct&pt transformers?

Adgas,

4 5671

what is difference between neutral& grounding?

6 6022

what is thermal resistance of PVC Cable.

1819

im try to calculating seawater flow required for SW-FGD system. I need a guide, equation or method to do it, can some one help me! Thanks very much

Student,

2027

What will happen if we give 220v supply on both sides to the bulb

Exide, Sumeet Industries, Toshiba,

7 11318

what is the formula of concrete quantity

NKB, Soma Enterprises,

4 9151

Question 49 - According to rules of thumb in chemical process design, consider the use of an expander for reducing the pressure of a gas when more than 20 horsepowers can be recovered. The theoretical adiabatic horsepower (THp) for expanding a gas could be estimated from the equation : THp = Q [ Ti / (8130a) ] [ 1 - (Po / Pi) ^ a ] where 3 ^ 3 is 3 power 3 or 27, Q is volumetric flowrate in standard cubic feet per minute, Ti is inlet temperature in degree Rankine, a = (k - 1) / k where k = Cp / Cv, Po and Pi are reference and systemic pressures respectively. (a) Assume Cp / Cv = 1.4, Po = 14.7 psia, (temperature in degree Rankine) = [ (temperature in degree Celsius) + 273.15 ] (9 / 5), nitrogen gas at Pi = 90 psia and 25 degree Celsius flowing at Q = 230 standard cubic feet per minute is to be vented to the atmosphere. According to rules of thumb, should an expander or a valve be used? (b) Find the outlet temperature To by using the equation To = Ti (Po / Pi) ^ a.

1 2455

Yokogawa dcs nodes advantages?

Petrochemicals,

1923

Yokogawa dcs normally where will change 4-20 MA to DC voltage( node or I/o cards?)

1 3373

Boiler flame scanner advantage?

Fluke, Petrochemicals, Tata Chemicals,

1838

How to calculate shuttering plate weight

1 5277

In Induction machines which type of emf is induced ( statically or dynamically)?

1 2626

What is the difference between multimeter

1977

Un-Answered Questions { Engineering }

What does the voltmeter in ac mode show? Is it rms value or peak value?

1061

What is bmi?

1131

what is cswip?

8959

Write down the expression for the average output voltage for step down and step up chopper?

1140

What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.

2472

Explain what is the method involved in analyzing powders for composition?

1173

What are some common causes of gas pipeline vibration 20 carbon steel line?

1276

Mention what are the types of semi-conductors?

1233

From where was aryabhatta launched?

807

IN electrical field, WHAT ALL THINGS THE CUSTOMER WILL ASK WHILE ORDERING FOR LT PANEL (ALL TYPES OF LOW TENSION PANEL)

2136

Why M15 is replaced by M20 when ammendment are made in IS456 in 2000?

1696

What current flows in the transformer primary when its secondary is open?

1270

Which is the only liquid in which gold is dissolved?

1008

How many such pairs of digits are there in the word " strive" each of which has as many letters between them in the word as they are in english alphabets?

2683

What happens when a magnetic material is heated strongly?

1004

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