Instrumentation Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Instrumentation Interview Questions

Questions Answers Views Company eMail

hi! i want to know about mpse exam.

2360

pls provide me syllabus and old question paper of instrumentation engineering for GET(JSPL)

2329

Explain the working principle of variable frequency drive?

ABB,

3521

Describe all types and levels (4-20mA, 0-10V, mV, pulse, etc.)of analog and digital I/O used in process control application.

Jindal,

2 8085

if the t/c o/p is 4-20mv then how plc recognize it because we are dealing with the 4-20ma in the plc ????????????????

7 11363

any body please send me the old question papers of ongc test.

NTPC,

2153

what is metal of piston ring

MahaGenco,

1978

what is the diffrence between mmwc and kg/cm2 for pressure measurment when we are using mmwc and when kg/cm2 and why????? ?? what is the reason

Ecoboard, Jindal, Sepco,

19 205323

Why using negative voltage in vibration measurement?

2 8140

1. How many output signals do wew have in process control? 2. Could you write down the names of the pre-commissioning and commissioning stage test instruments and explain them (more than 5 items)? 3. What is the first step to commission a transmitter on service? 4. What is RTD? 5. Find the output value in MA of a temperature transmitter (RTD Type) at 120degree celius? 6. What is the O/P signal of a pneumatic transmitter? 7. What is the O/P signal of an elctronic transmitter? 8. What is the close loop and open loon?

4 10923

what are the levels of automation?

1 4597

[ MITUTOYO / TESA / KUMAUN / MAHR / BRITOOL / TOHNICHY / DIATEST-GERMANY / IMADA / TECKLOK / SYLVAC /ADITYA=ACCURATE / BAKER/ CRYSTAL / FLUKE-RAYTEK ETC. 5.=SUPPLY= VERNIER CALIPERS / MICROMETERS / HEIGHTGAUGES / SLIPGAGE / BORE DIAL GAUGES / MEASURING PINS / TORQUE WRENCHES / GAUGES.. PLUGGAUGES / RINGGAUGES / SHORE A / D HARDNESS TESTERS / DIAL THICKNESS GAUGE / FEELER GAUGES / ELECTRONIC COMPARATORS WITH PROBES / DFTMETERS / SURFACE ROUGHNESS TESTERS / DIGITAL= COATING THICKNESS METERS / PROFILE PROJECTORS /.. WE ARE ALSO DEAL IN == DIGITAL TACHOMETERS / =MULTIMETERS! / VIBRATION METERS / MEGERS- INSULATION METERS / =TE! MPRATURE INDICATORS / SOUND-LEVEL METERS / ETC... =AGENCY- FLUKE- RAYTEK.. MECO....LUTRON...KYORITSU....RION

2713

what is meant by calibration

3 9675

If the average power during generation is zero, why do the analog meters have + and - ?

Siemens,

1 4865

I want to measure bidirectional steam flow? Kindly suggest me a suitable flow meter. steam is superheated at 41kg/cm2, 350°C

2 6721

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Un-Answered Questions { Instrumentation }

Why MUX JB's are using only Temperature Element in Fundation field bus?

2386

How to calibrate Magnetic flow Transmitter in Field

1317

Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.

1928

what are the different types of Protocols? & their applications.

30924

Draw block digram for well head from well to shipping pump?

2240

NPN transistor, SCR, Zener diode, LED, Varactor diode, Vortex meter, RTD, Resistor, Crystal

2241

Explain PID, ON/OFF, Controls

2086

Explain the key components of control loop?

1104

how to measure oxygen which methods are using?

2055

what is the process to make control schematic ?

2281

What is the Working principle of Dozing valve?

2262

why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.

2455

any questions on motor and energy conversions machines?

2284

Calibration procedure for water rotameters

2243

what are the use of belew gear in general ??

2061

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