Search Results for: pressure
- Flow Measurement
Overview of flow measurement.
Introduction The ability to measure flow rate is another important process measurement. There are four different classes of flow measurement…
Read More » - Interview Questions
Control valve basic interview questions
1. What are the steps in selection of valve? – Material to be handled – gas, liquid, power. Material by…
Read More » - Electrical
Electrical signal and control wiring
Introduction There is much to be said for neatness of assembly in electrical signal wiring. Even though the electrons don’t…
Read More » - Electrical
What is the function of Magnetic Contactors ?
Introduction Most motor applications require the use of remote control devices to start and stop the motor. Magnetic contactors, similar…
Read More » - Electrical
Difference between the Rotor and the Stator
Introduction The stator and rotor both are the parts of the electrical motor. The significant difference between the rotor and the…
Read More » - Control System
What is a PID control action?
TWhat is a controller and why is it required in a process system?What is a PID controller?What is the need…
Read More » - Instrumentation
Advantages/disadvantages of Pneumatic & Hydraulic Actuators
Pneumatic Actuators A set of devices into with one or more pneumo engines, which are determined to start mechanisms or some…
Read More » - Electrical
What is Marshalling Cabinet or Marshalling Panel?
What is the purpose of marshalling cabinets? Marshalling means grouping of I/O. The marshalling panel is placed between the DCS…
Read More » - Instrumentation
Working of Dead Weight Tester
Description The dead weight tester apparatus consists of a chamber that is filled with oil-free impurities and a piston-cylinder combination…
Read More » - Control Valve
Control Valve guiding
Valve guiding is necessary for proper alignment with the seat ring and efficient control of the process fluid. The common…
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