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Instrumentation Interview Questions
Questions Answers Views Company eMail

For 150 mtr cable run from DCS panel to transmitter (24 VDC with 4-20 ma output), need cable size. 1.5 sqmm is suitable?

NA,

2 2576

How we can re-range the DP transmitter, range is -0.5 to 2.0bara. new range is -0.5 to 5 bar

Rosemount,

2 2402

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

801

how its work inductive proximity sensor explain briefly?

1 2244

INtools Trainining

Monarch Techno Engineering Solutions,

1 1738

Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plants instrumentation field , which one field is give long life & which one field is best ,I confused a lot And also I'm studying AMIE, can I choose which field from Section B examination?

1 1393

In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?

Reliance,

954

meaning of SMART

ISRO,

3 2348

In instrumentation standard we use 4 to 20ma for transmission , why cant we use 3 to 19ma ?

NSH,

1 1818

How to interfacing microcontroller with a DC motor

JJ Tech,

786

How can i solve the problem of ROSEMOUNT 5300 guided wave level transmitter of full range? For more clearfication , another guided wave level transmitter VEGA brand have the same problem and i solved it by drain the champer from water and make "false signal suppretion" from transmitter push buttons it's configuration to tell the transmitter to avoid any built-up signal ,,, so my question how can i avoid the problem that rosemount read full range while the champer empty or any other ????

1 1148

What is the function of solenoid valve in on/off & shutdown valve and why it is not used in control valve normally?

958

how to calibrate level transmitter

Reliance,

2 2728

what is principal of pressure transmitter?

Hindalco, SPB,

5 3110

what is the criteria to decide conductor size of a cable ?

857


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Un-Answered Questions { Instrumentation }

what is diffrance between FF & SMART, explain with difination

2256


few questions on RS 232,1 question on relationship of impedance and turns ratio, many questions on flowmeters

1096


dear friends, i have seen flow as the selection critriea in presure guage (bourdon tube) and i would like to know what is the relation between flow and performance of pressure guage other parameters i found in the data sheet are pressure max. 1ksc temperature max. - 50 deg c line size - 80NB operating range - 1ksc pr. guage range - 0-2 ksc thank u,

1187


Using your own examples solve a problem involving normal table. (experimental method and analysis)

219


Linear amplifier.

1054






what is function of SCADA , and how is it work, explain with difination

1323


why fuse block is not used for AI signal?

912


What is instrumentation technologists and mechanics?

136


What is zener diode? What is voltage regulator?

170


principle of automatic votage regulator

1132


steps for installing orifice plate?

852


what is IEC code in cables & how to selecting cables?

846


i have steam drum height 1000mm. and i want to placed the transmitter below the tap.how i calculate.

1067


please send the drdo exam paper

1530


What is the cascade control

485