Top 100 Networking Interview Questions & Answers
Here is the complete list of Top 100 Networking Interview Questions & Answers useful for your interview preparation for the Network Engineer. Networking Interview Questions Define Network? A network is…
Pull Up and Pull Down Switch Circuits
Switches are simplest of all input devices. The Digital Input Card monitors the two states of the switch by measuring the voltage on the sense circuit. There are two types of…
Displacer Level Switch Working Principle
Displacer controls offer alternative features to the float-operated control. The sensor is a weight (displacer), heavier than the liquid, that is suspended by a spring. When liquid contacts the displacer,…
Differential Pressure Switch Working Principle
A Differential Pressure Switch, just like a regular pressure switch, is a simple electro-mechanical device that operates on the basic principles of levers and opposite forces. Mainly, they are used for…
Float Level Switch Working Principle
Float Operated Level Switches Principle: All float operated liquid level controls operate on the basic buoyancy principle which states "the buoyancy force action on an object is equal to the…
Switch or Transmitter
For decades, process instrumentation specifiers have faced the decision whether to use a switch or a continuous transmitter for a given application. Either type of instrument can be used to…
Why Valve Type Matters ? Poppet vs Spool Valves
Poppet vs. Spool Valves, Why Valve Type Matters When selecting 2-Way and 3-Way valves for your pneumatic circuit, be sure to take the internal design of the valve into consideration. …
Solenoid Operated Valves and Latching Valves
Solenoid Operated Valves and Latching Valves Looking For a Way to Reduce Energy Usage in Your Fluid Handling Application? Consider using Latching Solenoid Valves or Solenoid Operated Valves in your…
Pressure Control Valves vs Pressure Regulators
Pressure Control Valves vs Pressure Regulators: What is the Difference & Where Are They Used? The Difference Pressure Control Valves are ideal for applications requiring a reduced pressure to a…
Difference Between a Flow Control & a Needle Valve
The terms Flow Control & Needle Valve are often interchanged resulting in confusion when it comes to product selection. The difference between the two valves is explained below. Flow Controls…
