Instrumentation Interview Questions
Questions Answers Views Company eMail

How do you measure g's?

HPCL, Thermax, GNFC, Polmon, Aramco,

5 12798

What is the meaning of the term "g force"?

Thermax, Saint Gobain, Reliance,

3 9484

What is the relationship between the universal gravitational constant (G) and the acceleration due to gravity (g)?

APPSC,

3 32202




Identify the electrical variable that is either directly or inferentially used by various instruments to determine the value of a measured variable.

4 5942

Describe how to calibrate various types of instruments and transmitters using ISA industrial consensus standard techniques.

Reliance,

4 10683

Identify and use the ANSI/ISA-S5.1 consensus industrial standard process symbols.

GAIL, Olympia,

2446

Troubleshoot to the device level basic process control systems given the Process and Instrumentation Diagram?

HPCL, Chettinad,

2 7362

Convert a pressure, level, flow, or temperature process variable value into the appropriate pneumatic or electrical value given different types of instruments.

Jindal, MCL, Thermax,

6 15281




Determine the manipulated variable, controlled variable, and the measured variable given a description of various typical industrial processes.

Honeywell,

6 34273

How to set up the various advanced process controllers, input the proper parameters, and tune those controllers given related control system information.

EID Parry,

1 3712

How the warning lamp of a charging-system is activated ?

1594

Technician A says the brake warning light is connected into both the parking and service brake systems. Technician B says the brake warning light will come ON only if the service brake system fails. Who is correct?

2 3764

If a warning lamp will operate with the ground circuit is bypassed with a jumper wire to ground, what should you check?

1080

Technician A says that a fuel tank sending unit will have a high resistance only when the tank is full. Technician B says that its resistance when the tank is full depends on whether the sending unit is designed for use with a bimetallic gauge or with a magnetic gauge. Who is correct?

3 5488

what will the sending unit in the fuel gauge utilizes?

895


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Un-Answered Questions { Instrumentation }

i want formula for flow control.am doing project in flow control using orifice . i know value of the flow level(Q) . upstream(p1) pressure, orifice diameter(Do) , pipe diameter(Di) and oil viscosity(Vi) how can i calculate downstream pressure

918


What is force balance principle?

83


Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?

354


What is furnace draft control?

72


Explain the working of an electronic level troll.

66






give me the formula for analog to digital converter and also d to a converter

1780


Differentiate between ultrasonic flowmeter and radar type flow meter

67


Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.

907


Draw a complete P&ID of a flow suction tank indicating all control & protection equipment. Indicate all its inlets and outlets. Explain the controls for this system

560


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

906


in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.

1022


Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.

946


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.

925


Conversions

1103


Can any body help to get Rsemulator 5000 free from internet if possible then give me any link or any help .

1370