Instrumentation Interview Questions
Questions Answers Views Company eMail

What are the key components of control loop?

1 5677

what is the meaning of wet leg & where is it used?

1 6719

What are the reliability data ,like failure rate etc,for bently nevada systems & vibration probes.

1 3145




please anyone suggest me some good intools training institutes with their place and contact nos.

Thermax, ABB,

1 1965

square root calculation for dp flow transmitter? give me a explanation with example

3 26506

plz... clarify my answer, how to calibrate vaccum (DP)leveltransmitter,it is hart. (digital).DETAILS:(coloumn)closedtank height 2650mm,and tx range is 0-1500mmH20.

KNPC,

1 2320

what happen if i install my pressure transmitter below the elevation of pipe in natural gas service. Also support your answer

C2C,

3 4254

What is Cryogenic?

2 2505




What are the automatic controller MODES?

DEWA,

2 6792

what is coriolis principle for mass flowmeter?

ABB,

4 7671

why we use the ac supply load cell>?can we use the dc supply load cell?advantages and disadvantage of the ac supply load cell?

3461

I will attend an interview with GasGas company for a position of Instrument Technician ( Offshore )in next month can anyone tell me what questions they will ask. Thanks in advance.

RasGas,

553

how to use level tranasmitter in closed tank application.?

Dalkia,

3 3793

with the help of suitable diagrams different types of control valves

1 1968

if we have 450 mm heigth boiler drum level ,so what is span & zero value for a dpt tranmitter

4 6198


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Un-Answered Questions { Instrumentation }

How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.

27


what are procedure of sox-nox calibration

982


model question paper of instrumentation for Jindal GET 2010.plz reply sudhanshukumar08@yahoo.com

886


How to control flow variations in magnetic flow maters..... When i will provide proper earthing?

729


what does the ratio 800-400-300-200/1-1-1-1-1 in the specification of current transformer indicates?

853


What is the main difference between Cavitation and Flashing?

9856


full process of gas turbin?

450


How we connect a instrument with ground, Give brief explanation with help of diagram?

491


what is performance test.need defination

224


can we copy the software from a transmitter using hht(hart 275) ?

534


A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.

694


wich is coming the first HAZOP OR SIL

1141


What inherent design and operating principles are included in a modern control system to use predictive maintenance practices to increase overall system reliability?

541


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

8167


State four different types of flow measurement, for gas flow measurement MMSCFD is the common unit expand the unit and specify significance of word S in the unit.

502