Engineering Interview Questions
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I have installed a RTD whose length is 2250mm(RTD stem length), but it's upper 200 -250mm is out of the reactor, and this upper 200mm stem is surrounded by atmospheric temp. And the lower portion i.e. 2000mm is in contact with the measuring fluid, then does the final measuring temp. Gonna change as the upper 200mm RTD stem is out of reactor?

Process Control Technologies,

1 1099

How does a single acting, spring return ball valve actually work? Does it require continuous air supply? 

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In a ball valve which require 24v dc supply to operate, whose solenoid valve doesn't have any + or - indication, how can we make wiring connectionto solenoid valve?

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1 2650

What is the difference between conductive lined pipe and conductive unlined pipe? Why do we see that?

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Why does a pressure gauge installed on reactor, doesn't have any vent line below to release the pressure? Is it any kind of designing mistake or it actually does not require any vent line? And if it does not require any vent line below it then how we are gonna release the pressure built inside the pressure gauge?

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Is it ok, to use non-contact type Radar type LT, on a tank that is half circular from the bottom side? If yes the, isn't the waves gonna bent in other directions? 

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What is shielding effect?

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What is heating effect?

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Why is the length of cable layyed from RTD to temp. Transmitter should be minimum? Why does heating effect takes place in their?

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1 4420

Why do we use triad cable for RTD to Temp.transmitter connection? Why we don't use 3 core cable?

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1 9960

What are continuances of connecting earthing and shield of branch cables (instrument to Junction box), at the same earthing pot provided on JB? Is it ok, or may produce some problem? 

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Why do we have earthing cable in branch cable and shield in the same cable?

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Why 1-5 vdc a standard?

Process Control Technologies,

1 6302

Hello Friends do you know this answer of this Question? Which color you would use when there is Somthing not correct or need to change In P&ID? i mean color that use for highlight that need to update in P&ID. Yellow Highlighter ? Red color ? Blue Color ? Appreciate for your answer. Thanks Blue Color

2 4251

10 sq m ,25mm thickness 1:2:4 cement and concrete floor how much cement required?       2 , if truck has a capcacity of 8 ton then how many bricks we can put on it ?

1 6747

Un-Answered Questions { Engineering }

what is positive , negative & zero equivalent system resistance


what do you mean by class PS CT and what are technical details needed for calculating it?


what medal conducts heat best?


My name is Noor and i have completed by 10th with 78%, inter with 67% and has a from JNTU second class with 56% .Iam planning to do MS in US will my visa be successful .I have doubts since i have a scond class with 56% in please advice me as soon as possible.


What are factors to be considered while we selecting the Core Balance Current Transformer for Earth fault protection


What is rubber fibers?


What is an alphanumeric code?


Why ce configuration is most popular in amplifier circuits?


Draw the line diagram of diffretial relay connected to transformer?


What are the 3 parts in indicator diagram?


Can XLPE/SWB/PVC (P3) 7C X 2.5mm2 be replaced by Can XLPE/SWB/PVC (P2) 7C X 2.5mm2??? P3 vs P2


What is meant by derating factor?


Why L.T.Cable voltage rating is 1.1kV,where as system voltage is 0.415kV?


What is difference between isolator and circuit breaker?


What is EMC filter in VVVF Drive ?