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Ashlin

post-graduate in Electronics & communication.
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Instrumentation Questions

Test Your Knowledge: Instrument Logic Diagram Quiz Based on Real DCS to MCC Logic Diagram

This advanced quiz is for professionals and students who want to learn how to read Instrument Logic Diagrams (ILDs) in process control systems. The questions test your ability to understand interlocks, permissives, start/stop logic, flip-flop latching, timer delays, and field feedback integration by using...
Control System

How to Read a DCS Cascade Control Loop Diagram: A Complete Guide with Example

Table of ContentsWhat is a Loop Diagram?What is Cascade Control?Purpose of a DCS Cascade Loop DiagramExample System: Fresh Feed Flow Control to a Process UnitProcess Description: Control Strategy and SequenceDetailed Breakdown of Each Component in the DiagramUnderstanding Signal Flow and Terminal PointsImportance of the...
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Control Valve

What is a counterbalance valve?

This type of valve would allow the flow in one direction and it would...
Control Valve

What is a sequence valve?

A sequence valve is widely used in a hydraulic system these valves are pressure...
Control Valve

What is a cartridge valve?

A cartridge valve is a directional control valve, it is a two-position valve and...
Control System

What is a servo valve?

A servo valve can vary the fluid flow according to the changes in the...
Electrical

What is an electrical line or phase tester and how does it work? What are the parts of an electrical line tester?

A line tester is electrical equipment that can be used to detect the presence...
Control Valve

What is a proportional control valve?

The proportional control valve can be considered as the combination of the hydraulic valve...
Field Instrumentation

What is an airlock relay?

The airlock unit is very useful in a control valve. This could provide the...
Control Valve

What is a rotary airlock valve?

A rotary valve can be classified as a type of spool valve and in...
Displacement Measurement

What is a potentiometer?

The potentiometer can be described as a device to measure the potential difference, this...
Electrical

What is a redundant power supply?

A power supply can be described as a source of electric power, and this...
Calibration

How to calibrate flow measurement devices?

The calibration is done to the instruments to improve the accuracy of the instrument....
Pressure Measurement

What is a multivariable transmitter and what are its uses?

A multivariable transmitter is a type of pressure transmitter and this transmitter would calculate...
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Instrumentation Questions

Test Your Knowledge: Instrument Logic Diagram Quiz Based on Real DCS to MCC Logic Diagram

This advanced quiz is for professionals and students who want to learn how to...
Control System

How to Read a DCS Cascade Control Loop Diagram: A Complete Guide with Example

Table of ContentsWhat is a Loop Diagram?What is Cascade Control?Purpose of a DCS Cascade...
PLC

Step-by-Step PLC Ladder Logic for Automatic Liquid Mixing Process with Interlocks

Table of ContentsWhy Liquid Mixing Needs AutomationProcess OverviewPLC I/O Address AssignmentLadder Logic Design (Step-by-Step...
Calibration

Why Calibrating your Calibrators is Critically Important: Accuracy, Compliance and ISO 17025 and NIST Traceability

Table of ContentsRole of Calibrators in Process IndustryWhy Calibrating Calibrators are Important ?Importance of...

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