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WorksheetsTEP piping 3
Total questions: 10
Worksheet time: 3hrs 30mins
How do you calculate internal diameter (ID) if given OD and t?
ID = OD + 2t
ID = OD - t
ID = OD - 2t
ID = OD/2 -t
Difference between slip on and socket welded flanges:
slip on flg is normally made with double welded, whereas socket welded flg is single welded only.
slip on flg is mostly made with single welded joint similar to socket welded
slip on flg has single welded joint only, whereas socket welded flg has double welded
slip on flg has 2 welded joint similar to socket welded flg
Winding of spiral wound gasket is normally made from which material?
CS
Graphite
SS 316L
PTFE
Higher rating of flanges ( e.g. above 300#) indicate that the flanges can be used for:
standard test pressure
higher pressure and temperature service
very cold temperature
larger piping
According to API 590, what does symbol B mean?
ID of spade blind
inside diameter of spectacle blind hole
OD of spectacle blind
ID of pipe to be blinded
Acc. to API 590, what is the OD of RF spade for 300lbs NPS 2?
140 mm
108 mm
102 mm
127 mm
What is nominal thickness for pipe NPS 4 Sch. 40?
6.55 mm
6.02 mm
8.56 mm
7.11 mm
What do you call insulation material component that is in contact with the piping to be protected?
lagging
metal jacketing
banding
mastic
Functions of insulation: (multiple answer)
protect piping from rusting or corrosion (CUI)
prevent hot fluid from cooling as it travels through piping
prevent cold fluid from getting hot as it travels through piping
to protect piping from corrosive media inside the piping
Typical types of insulation: (multiple answer)
rock wool
fibre glass
PUF
calcium silicate
