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

Instrumentation Interview Questions

Questions Answers Views Company eMail

State 5 different method of level measurements.

SRACO,

3 6713

what is the essential difference between DIODE and SCR in term of application.

ADMA OPCO,

2 5880

In turbine, what does term CDP, NI, NH, HSSOC, means

ADMA OPCO,

2678

An equipment is certified for EEX, IA, IIC, T6, what do you under stand by this.

ADMA OPCO,

3 7554

I HAVE PRESSURE TRANSMITTER WITH TWO WIRES 24 VOLTS SUPPLY.IF TRANSMITTER WILL GIVE SIGNAL TO THE DCS WHAT HAPPEN TO THE 24 VOLTS POWER SUPPLY IT WILL DROP OR REMAIN TO 24 VOLTS POWER SUPPLY.

3 7770

what is sequence table in DCS . make a logic in sequence table for tripping of ID fan in Boiler(in YOKOGAWA CS 3000 DCS).

Yokogawa,

1 7423

Dear all... I have 1 0-400 duplex type RTD, I connected the A side to the temperature indicator and B side to the PLC panel, but when I have observed then found that The PLC side temp has the variation. and it was distub to other RTD temp also. so what can I do.

1 4400

Worley Parsons,

1 4949

Can we used Condensate Pot on flow transmitter which is using on liquid having sluge and DP transmitter is in pit and below the process line,Can we used Condensate pot for accamulate the Sluge?

1 5667

What properties or parameters to be taken into consideration for protection while selection of Dcs controller.

JPL,

1 4231

What is the difference between ROM & RAM .

Sabic, SPIC,

1 5451

Can we use a 10000 Lph Flow Transmitter in 100 LPH flow line to get 20mA O/P by adjusting SPAN ?

1 4607

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

1939

What is the difference between EPROM & EEPROM.

Sabic,

1 9221

What is scale factor of proximitor & unit of the viabration.

Sabic,

2 5980

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Un-Answered Questions { Instrumentation }

what is the responsibility of an instrument commissioning supervisor

3108

in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?

2221

why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

2819

how will you check torque value during Factory acceptance Test for control valve/ESD ON/OFF VALE how will you confirm this torque value is being correct, Which document will you be refer.

2415

explain key exchanges in all security modes WPA,WPA2,TLS?

1971

How u measure the massflow in orifice flow measurement techniques

1360

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 ??

7460

whats the abbreviation of IOP? is it instrument of power or input open problem?

1100

Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.

1861

Name different parts of a pressure gauge.

1061

hi sir yhis is zahid ali i am preparing for the jspl at oct.4.please send me the recently updated sample paper.

2119

what would be the minimum flow rate that we can measure on rotameter..?

2033

Specify eight technical requirements that you would consider important, when deciding upon a particular control valve?

1826

god evening sir i am studying m.sc(tech)electronics &instrumention.am i elegible to all industies

1766

Can I calibrate the Electromagnetic Flow Meter on line and How.

1901

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