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

Instrumentation Interview Questions

Questions Answers Views Company eMail

what is diff between the motor and pump

HCL,

10 32625

What is the differaence between PLC and DCS?

6 18880

How can you convert an SR Flip-flop to a JK Flip-flop?

1 7034

How to force the bit in GE Mark V?

1 4598

Can any body help me,The GE Mark V control system is windows based or Dos based?

3 7473

please send the drdo exam paper

DRDO,

2434

what is difference between modbus & fieldbus

ABB,

1 24885

I have applied the post Junior Engineer-(TM)in R.R.B CHANDIGARH recently . what type of question i have to practice and which book ?. can i get any model question paper?

RRB,

3 7483

all types instrumentation questions want

Bhel, Descon, HBL Power Systems,

2240

why twisted pair of wires is used in instrumentation ?

ONGC,

6 24536

cheapest instru-- PMMC, EDM, rectifier, thermocouple.

ONGC,

3 11428

difference between null and deflecting instrument.

ONGC,

5 58740

calibration of instruments.

ONGC,

11 20735

Paper Details: company -- Hindustan Copper Limited post -- GET 2008 Date -- 03.08.2008 Dept.-- Electronics?Instrumentation Aptitude -- 70 Technical-- 80 Total Time -- 2hr 30min I have listed the question I could able to remember 1. BCD equivalent of 43 2. value of K for stability of a system from a given equation 3. transformer connection for darlington connection 4. damping of balastic galvanometer 5. advantage of chart-pen recorder over CRo 6. CRO - how to change bandwidth 7. questions on CRO construction 8. reverse saturation current of si diode 9. advantage of wire wound resistance over carbon resistance 10. core material for a small coil 11. max fanout-- TTL/ECL/CMOS/MOS 12. component of resistance of monolithic IC 13. functions of capacitors in multivibrators 14. to change a sawtooth signal into a square wave we use-- schmit trigger/ schottkey diode/ zener diode 15. relation b/w á & â in transistor ckt 16. function of SiO2 layer in fabrication 17. 3 questions on ODD MAN OUT

HCL, L&T,

2 6006

how to calibrate a control valve?

Reliance, Telecon Systems,

7 64067

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Un-Answered Questions { Instrumentation }

how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?

5731

What is the calibration procedure of Drum level transmitter if range is 0 to -400 mmh2o in lab?

2158

What is intrinsic safety mean.

1961

How to calibrate smoke Dectector

1673

How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks

2155

What is the use of each wire in three wire RTD

2549

I need to know steps to Calibration Valve Guard......

1528

Instrument QA/Qc what is the project quality plan?conduit inspection RFI. which documents attache with package?

10908

How earthing can be checked????

2454

why we are using drum level control valve air to close?

2150

What is difference between differential pressure & delta pressure?

1160

, Instrument Index, P&ID review, I/O schedule, datasheet, DCS / Analyzers specifications, loop diagrams, hook-up drawings.

8151

how do we commission inergen system?

1992

Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?

1826

what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other

2236

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