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

Instrumentation Interview Questions

Questions Answers Views Company eMail

Somebody ask me how many size of control valve what is mean of control valve size?

2 5203

what deference between panel earth and systemearth

Tecnimont,

2329

In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.

1978

What is input and output of vaiberation transmitter and what is its unit.

SMH,

4 9328

What is input and output of plc & dcs

2 5926

What is TMR

3 10352

Where are use of pressure,level,flow switches?and what is input and output

3 7453

What is differnece between leveltroll and interface leveltrol?

2 6415

How many types of sensors are used in instrumentation & what are names

CTC,

1 4388

What types of thermocuple are mostly used?

6 10374

(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) 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.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.

ADMA OPCO,

4046

What is the purpose of LO overhead tank in turbines.

ADMA OPCO,

1 2931

what is the usage of QDV & VOLUME BOOSTER

ADMA OPCO,

2319

what barrier is used in process industry.

ADMA OPCO, Process Industries,

3 7134

what is meant by cold junction compensation. where it is used.

SRACO,

1 6102

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Un-Answered Questions { Instrumentation }

ORP sensor working principle?

2016

hi,i am doing 3 year in electronic and instrumentation engineering. what type of aptitude questions will be asked in a core industries and how can i improve my skills in instrumentation?

2104

in differential pressure transmitter,min&max pressure range for hp&lp

2009

Positioner usage.

1939

In dcs panel we are using diff type of modules ?what is module ? what is the use of modules ?diff type of module?

1988

What is limitation of the ht.of the displacer of a level trol?

2402

What is rang ability?

2347

what is surge and how is it prevented, what is the purpose of bypass valve across AS valve.

1980

what is vibration a part of proceess variable? if vibration is a part variables then how we minimize the actual vibration on machine on load,? vision of instrumentation contrl plz ans me IPGDL interview question

1931

what is the protection system in solar turbine compressor

2200

PLEASE PROVIDE SAMPLES OF CHEVRON SKILL TESTS

3900

What is intrinsic safety mean.

1909

what is the process to make control schematic ?

2252

Square root calculation for dp flow transmitter?

1250

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

1866

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