What is MSV?
MSV is Multi Selector Valve and Used in Oil and Gas industry. MSV is used to connect multiple Wells, to send oil to production and test separators.Read More…
Archives: Answers
Answer
What is a foot valve (hint – in centrifugal or Submersible PCP pumps)
Foot valve is provided in suction of lift pumps or PCP (Progressive Cavity Pumps)(where fluid level is below pump location). This helps in initial priming up of the pump.Read More…
What is the meaning of AFC and AFD in drawings?
AFC means “Approved for Construction” and AFD means “Approved for Design”. AFC drawings are used for starting and doing Construction activities, whereas AFD drawings are used for starting actual design of detail engineering.Read More…
What is the difference between Cetane Index and Cetane Number?
Cetane Number – experimental, CI – ASTM 4357 calculated from Sp Gravity, 10, 50, 90 % recovery temperature. Diesel index = (Aniline point in 0F * API)/100 Diesel Index = (Cetane Number – 10)/0.72 Aniline point is the lowest temperature at which the oil is completely miscible with an equal volume of aniline – high aniline point indicates presence of Paraffinic components and hence bettRead More…
Why does a glass bottle crack when it is filled with water and frozen?
Water has lowest volume at Minus 4 deg C, below this it again expands and exerts pressure on the glass walls, which leads in crack on bottle.Read More…
What is TSV or TRV and Where do we use it?
TSV or TRV (Thermal safety valve or Thermal Relief Valve) is used to take care of pressure build up due to thermal expansion. It is provided at places where a liquid can remain in blocked up state with no room for expansion due to temperature rise.Read More…
What is the full form of CPI?
CPI means Corrugated Plate Interceptor – Which is used in water treatment.Read More…
Why the under ground lines should not be steam flushed?
Under ground lines have a protective coating of asphalt which will melt and spoil if subjected to high temperature.Read More…
What is lost time accident?
Should an injured person remain away as a result of accident for more than a day (excluding the day of accident and the day of reporting), it is treated as lost time accident. Example – Joe meets with an accident on Monday and goes home. He does not sufferRead More…
What is zone-0, where is it in refinery?
As per BIS classification of hazardous area – zone zero is where explosive atmosphere is continuously present – like vapor space in tanks which are open to air and contain hydrocarbon or flammable material which for explosive mixture with air.Read More…