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

2211

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 8066

control diagram of star delta starter

5 9600

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

1 3516

what is the difference between plc & DCS?

Cheminova, NGIL, Siemens,

5 9475

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

2 5964

what is meant by expansion joints in concrete structures?

L&T,

4 11939

how clculate excavated or backfilling quantity by simpson's rule

Jaypee,

5138

Advantages of Induction Motors

2 4177

why we use npn sensor in vibration monitoring system

1 3015

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

3 8052

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

Agarwal Associates,

3 25312

Is MV canble armour can be earthed at both ends?

2 4451

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 3849

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 11771

Un-Answered Questions { Engineering }

Why we use 4 - 20 ma?

1884

WHAT IS YOUR CURRENT SALARY

2270

sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan

2214

please send me last five year papers for my electronic and communication branch as i have completed my graduation in diploma.

2345

Which language of programing is popular? how can i learn it ?

2154

What is the different types of cable & current capacity of cable

1965

Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode

2030

Define pulse width modulation?

1022

what is the difference between anf & centrifuge?

2912

how convert sqft into cubic meter and cubic meter into sqft

1581

Iin ESP why positive is grounded ? why not negative ?

2659

diff.between servo motor and ac motor

2052

ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH

4161

I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

3252

What is meant by pulse triggered devices?

1043

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