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

Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72

2281

i install a DP transmitter of Faugi on drum level of boiler but i face a problem in it when i engergize the transmitter the meter shows 0 or 100% no variation in it.the distance of two points is 19.5 inches, i am in trouble please suggest me what can i do it's very urgent Please reply me as soon as possible Best regards ikraam haider

5 8270

control diagram of star delta starter

5 9801

How can you derive a composite matrix for reflecting an object in 3D about any arbitrary plane characterised by normal vector N?

1 3646

what is the difference between plc & DCS?

Cheminova, NGIL, Siemens,

5 9647

quantity of sand in cft in 1:6 cement sand mortar

2 6081

what is meant by expansion joints in concrete structures?

L&T,

4 12158

how clculate excavated or backfilling quantity by simpson's rule

Jaypee,

5197

Advantages of Induction Motors

2 4298

why we use npn sensor in vibration monitoring system

1 3093

What is "Bending moment"? Demonstrate on theory not for formula.

3 8189

How to calculate the crank length of the rod in beam? Please give me a details.

Agarwal Associates,

3 25514

Is MV canble armour can be earthed at both ends?

2 4608

What are the reason of unbalanced secondary voltage of HT transformer 33kv/6.6kv ? Incomming voltage is balanced.33kv each secondary voltage 6.6 kv 6.4 kv 6.4 kv At no load conditions.

1 3942

why the thermocouple is a transducer an Rtd is not a transducer both taking heat as a input and give millivilt and ohms plz give me answer

2 11917

Un-Answered Questions { Engineering }

Why it is a preferable option in parallelextender development ?

2050

Consider three heater bank connected in 3 phase star with neutral.Each heater bank connected in each phase.So each phase get 230 volts supply.my question is,during balance condition, current flow in neutral or Not

1711

how to work droop ct in generating station

2772

When did national commission for space research institute thumba equatorial rocket launching station commissioned ( terls )?

734

How can we demolish concrete beams?

2437

What is motion balance principle?

1223

can you plz send l&t aptitude questions if available its urgent plz plz plz

2179

What is capacitor?

1303

what is Clear Ice?

1344

how a dpad circuit works

2393

How the current is reduced to zero in a photodiode?

1133

how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?

6128

What is a waveform used for in reference to electronics?

1201

What is enzyme?

any one can explain the stages of a knee point which is taken during ct magnetising curve.

1831

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