Instrumentation Interview Questions
Questions Answers Views Company eMail

What is smart positionar

2 3142

Different between control valve and mov

2 6244

Why the ammonia and Nitric Acid level indicators is with millimeter ? and What is the conversion form millimeters that level indicator indicate to weight ?

EHC,

1218

Reason for capillary type dp level transmitter fluctuation

BMB, Enppi,

1517

what are the types of a thermocouple

2 3375

where are following valves are applicable to install. can any valve be installed any line. globe valve butterfly valve boll valve gate valve

1247

What is glanding

1 2704

How does electro magnetic pump works ?

IGCAR,

1 1989

What is the difference between pt100, pt500 and pt1000 RTDs?

ICI Pakistan,

3 12649

What is the function of positioner in control valves? does the control valve operate without positioner?

Hofincons,

3 4172

what are the selections available in configuring a burnout protection of a controller? thanks

NPC Alliance Corporation,

1462

Hi, am aniket, I got engineering degree in instrumentation and control, but as their were no job availabilities for engineer's post I started working as instrumentation technician I kuwait, so my question is is this technician's experience worth for getting the position of engineer?

Almeer Technical Services,

1 2069

How to calibrate Toxic gas detector?

Supertech,

1238

How to calibration of vibration probe

Mina Al Ahmadi Refinery,

1 3212

Steve said that "An eddy-current probe works by passing an alternating current through a coil of wire and measuring the coil’s impedance" while we are using -24 Volt DC , So I am confused about DC and AC. Plz .

Jindal, Sadara Chemicals,

2 2559


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Un-Answered Questions { Instrumentation }

what is the procedure of belt scale calibration?

1969


what is your eligibility criteria for freashers?

1635


How to Calibrate Radar Level Transmitter in Field

733


Hi,can anyone help me out with PhD programs related to Instrumentation field?I have a degree in electronic Instrumentation?

1479


can you provide me full detail about instrumentation in ONGC??

1752






Programmable Logic control.

1514


Why humidity limit is 30 to 55 % for raw material storage?

3616


i have been asked by QAFCO to appear for interview for thy post of Instrument Designer(INTOOLS)..i m engineering graduate with 5 years exp. in design engineering.Will this job profile suit me??i need all ur help n suggestions for thy same?

1798


䑰ҕ䔈ҕ䖠ҕ䘰ҕ䛀ҕ䝐ҕ䟐ҕ䢐ҕ䥐ҕŹ

1537


1.what is the effect of vapour presuure in orifice plate flow measurement 2.which is more effective 2 pressure sensors or one single differential pressure sensor in orifice plate measurement 3.how to design a v/i converter and i/v converter 4.how many type of thermocouple are there 5.how many leads are there in thermocouple measurement 6.how pressure sensors are connected in level measurement in differential pressure method 7.what is the output of capacitive pressure sensor (ac or dc),how its o/p is signal charactarized 8.what is the physical meaning of discharge coeeficient,why it is calculated,orifice plate what is its value,why it is less than 1,Q at upstream is equal to or not equal to Q at downstream of orifice plate why?what is vena contracta in orifice plate 9.why rotameter is called variable area flowmeter,it can measure flow even if area is not varying,why it is made tapered 10.design a 10 bit counter ,which counter you will prefer 11.how to remove self heating error in RTD 12.which is more sensitive pt100 or pt50 13.why thermocouple are connected in parallel 14.what is lead contact error in RTD,how to avoid 15.what is P,PI,PID,PD controller,why there is no ID controller 16.what is override,split range,sequential,ratio,feedforward,cascade controller 17.why we moved from SR to JK and then JK to master slave JK flipflop,give correct reason 18.how to measure level of a closed container which contains vapour and liquid,remember no vapour gas should be leaked,so ultrasonic and capacitive is not an option,design another method 19.how to design horse race counter including sensors and signal conditioning element 20.what is bevelling

1960


how to convert cubic metre per hour to newton cubic metre per hour

1584


What is the Working principle of Dozing valve?

1777


can u briefly explain aboutan aryton shunt multirange DC ammeter?

2301


Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer

4171


what is the imbustion control loop

1439