Instrumentation Interview Questions
Questions Answers Views Company eMail

what are the use of belew gear in general ??

1550

why micro controller 8051/52's clock frequency is internally divide by 12 ?? and why it is further divide by 32 in UART serial communication ??

1 6853

what is difference between RTD , thermo couple and thermistor in general ?? (except temperature co-efficient )

Bilt,

5 17062

how bolometer is used in temperature measurement ??

1 4071

what is difference between wheatstone bridge, pirani gauge and strain gauge ??? explain its principle and working

4 9742

what is difference between 3 wire and 4 wire RTD sensor?

HTA Instrumentation,

12 39213

Can we use thermocouple in generator of power station replace RTD(pt 100)? if we don't have any place for use RTD.

2 4612

THE OUTPUT OF A CURRRENT TRANSMITTER OR A PNEUMATIC TRANSMITTER HAS A LIVE ZERO?EXPLAIN

2 4859

Calibration procedure for Electro magnetic Flow meter

Reliance,

4030

what u mean by speed control in turbin? how it was working?

2 6945

what r all the closed loop used in boiler? for this related tell some web address..

3 7209

what r all the type of viberation measurement measuring in turbin? what's the output of viberation sensor?

2 6320

calculate the rane of level use of this values, h=3 meter density=0.9 , whats the rang?

2 5784

EXPLAIN SOME IMP QUESTIONS AND ANSWERS ON TOPIC ELECTRONICS,INSTRUMENTATION.........

ONGC,

1 5660

what is the best method to measuring level in high pressure and temperture thank?

4 7154


Post New Instrumentation Questions

Un-Answered Questions { Instrumentation }

Pl send the model question paper of mahagenco account officer post

2242


Draw a wheatstone bridge circuit showing supply, meter and 3 wire RTD connection

1580


what is function of switch, and how is it work, explain with difination

1791


Why even multiple power supplu r used in instrumentation system?

4155


plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}

1888






What is the formula of vabration sesore. i mean how to covert mils to volt plz share if any body knows   very argent : my mai is merajalam143545@yahoo.com

2026


Any body have know try work calculation ???

981


What is eddy current? Describe the operating principle of proximity probe.

1756


why is not useing in boiler skin thermocople

4521


Gas equation

1404


how to turbine speed measurement?

1159


What is Positive Calibration and Negative Calibration?

1756


Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =

1442


I have 0.75mm sq multicore cable (IS type) , can use instead of same type but 1.5 sq mm cable ? Note : The distance is around about 150 meter.

1153


Which type of pressure can be measured by these elements?

625