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Instrumentation Interview Questions
Questions Answers Views Company eMail

State 5 different method of level measurements.

SRACO,

3 5622

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

ADMA OPCO,

2 4772

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

ADMA OPCO,

2190

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

ADMA OPCO,

3 6442

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 6400

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 6546

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 3677

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.pls help me

Worley Parsons,

1 4210

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 4908

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

JPL,

1 3471

What is the difference between ROM & RAM .

Sabic, SPIC,

1 4575

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

1 3972

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

 1521

What is the difference between EPROM & EEPROM.

Sabic,

1 8319

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

Sabic,

2 5083

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Un-Answered Questions { Instrumentation }

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.

1149

IN CONTROL VALVE SPECIFICATIONS GENERALLY TERM " DE- 200" ."DM -400"USED,, WHAT IS DE/ DM STANDS FOR?

1747

this site is owned by an nonsense

1754

Difference between dcs and plc including date processing and architecture.

612

Differentiate between ultrasonic flowmeter and radar type flow meter

733




Make a ladder diagram on LSL valve will close, on PSL valve will open and start the motor

1672

components of control circuit belongs to control valve

1226

Describe the function of Accumulator into the Pump

1470

Meaning of the following a. IOP- Manimum; b. IOP- Maximu,;

1645

I wnat to practice more online type questions .so will you show them me to take a practice test?

915

Speedtronic system .

1520

How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?

1588

Can anyone send most commonly asked interview question in Oil & Gas industry

1751

Exothermic reaction./ endothermic reaction

1519

What is the use of gauge?

679

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