Instrumentation Interview Questions
Questions Answers Views Company eMail

how to convert cubic metre per hour to newton cubic metre per hour

1614

can we replace a pressure transmitter of range 0 to 25 Kg/cm2 by a Pressure transmitter of range 0 to 10 Kg/cm2 ?.. Will it affect 4 to 20 mA output signal which we will feed to the PLC.

IOCL,

9 11298

What is the right procedure for adjusting the gap voltage of bently nevada vibration sensor?

2 14496

how to calibrate a capillary type level transmitter for a closed tank in field? also what is the procedure for commissioning a capillary level transmitter for a closed tank?

2 26082

Why the tapping connections are taking above for gas service and below for liquid service?

4 6932

how to calibrate bubbler type level transmitter of rosemount make and how to set air flow according to the range.. give one calibration procedure with one example

1 10758

Is Hart communicator calibration device or communicating device for transmitter?

Yokogawa,

4 8020

what is type of protocol used in instrument field to marshalling cabinet cabel. what is the differenance between bus cabel and instrument cabel?

Samsung,

1 3709

Generally in which location ( JB or IO card or DCS) the thermocouple compensation is done.Also where they measure the atmosphere temp ( for compensation) in JB OR DCS panel? How they compensating that atmosphere temp? is any circuit for that ( like in rtd wheatstone bridge)?

3 9748

what is the thermocuple compensation circuit

3 6270

To find closed tank level by DP transmitter , how to findout its range.and insomeplace they using range like - 1500 to +1500 mmwc why not 0 to 3000 mmwc. how they spilit they range for minus and plus.and why?

Kuwait Oil Company,

1 9396

how to calculate interface capelary level transmetar lower S.G.0.54 and uper S.G. 0.26 and h=490 mm

3 5440

how to calculate the total flow in square root

PTI, Qatar Kentz,

1779

how do u calibrate the vacuum transmitter if it shows more reading

1619

what are the installation requirement is common to all flow meter when volumetric flow rate is being measured

1 2968


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Un-Answered Questions { Instrumentation }

Speedtronic system .

1576


the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)

1568


we are using centum vp as monitoring with Dell precision work station T3600 but some times PC(s) are restarted automatically . how we can solve this problem? thanks

1797


hey any one got the papers of SAIL and HPCL plz do help me by posting them to my mail ID's naren07_87@yaho.co.in, surenarendra@gmail.com

1506


how to calculate orifice sizing? and tell me if pipe size bet 50mm t0 200mm then we can use pipe flange??? and above 250mm pipe size should i use D & D/2 Flange? is it right or wrong?

1533






Which are all the commonly used Bordon tubes in the pressure gauges. Do any one use ASTM A 312 tubes for this purpose?

1351


i am from instrument branch i want paper patern of mahagenco . any pevious years paper regarding my branch send me please . please.....

1639


What is sensitivity in vibration probes..?

1062


Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?

957


WHY THE DEGREE OF VALVE PLUG AND VALVE SEAT IS SLIGTLY DIFFERENT I CONTROL VALVE TRIM DESIGN

1591


Can I calibrate the Electromagnetic Flow Meter on line and How.

1427


How to calibrate the flow transmitter

1085


sir,would you please send me the Hindustan petroleum corporation limited papers(HPCL).my e-mail ID is ujjwal_sharma1983@yahoo.com

1842


what is the input to be given in digital flow meter during the the calibration time?

1770


How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?

2054