Dissolved Oxygen Analyzer Working Principle
What is dissolved oxygen ? Dissolved oxygen refers to oxygen dissolved in water. Its concentration is expressed as the amount of oxygen per unit volume and the unit is mg/L. Biologically,…
Oxygen Analyzer Working Principle
The measurement methods of the oxygen analyzers currently available in the industry can be classified into the following categories. Zirconia type measurement system Paramagnetic type Optical type Electrochemical type Since each…
Calibration of Gas Detectors
A gas detector is a device that detects the presence of gases in an area, often as part of a safety system. This type of equipment is used to detect…
Basics of Star and Delta connections
Comparison between Star and Delta Connections Differences: The two systems have vastly different applications. Yes, there is a lot of crossover between them in some fields, but the two are…
Difference between Star and Delta Connections
Comparison between Star (Y) and Delta (Δ) Connections
Basics of Wellhead Control Panel (WHCP)
WHCP: Wellhead Control Panel WHCPs are also known as Shutdown Panels (SDP), Emergency Shutdown Systems (ESD) or Hydraulic Safety Shutdown System (HSSS). These are failsafe shutdown systems which have pneumatic/hydraulic/electric components;…
Safety Instrumented Systems Online Exam
Practice the 14 quiz online exam questions and answers on the safety instrumented systems (SIS) used in the oil and gas industries.
Overview of HIPPS System
HIPPS is an abbreviation of “High Integrity Pressure Protection System”. HIPPS systems are applied to prevent over-pressurisation of a plant by shutting-off the source of the high pressure. In traditional…
Safety Instrumented System Engineer Interview Questions
A SIS is engineered to perform "specific control functions" to failsafe or maintain safe operation of a process when unacceptable or dangerous conditions occur. Safety Instrumented Systems must be independent…
Layers of Protection Analysis (LOPA) Interview Questions
It is a simplified risk assessment method. It provides a method for evaluating the risk of hazard scenarios and comparing it with risk tolerance criteria to decide if existing safeguards…
