EXPLANATIONS | A+ STUDY RESOURCE |BRAND NEW 2026/2027
The gamma ray radiography has max. density of:
a) 2.0 HD
b) 4.0 HD
c) no upper limit is prescribed
d) depends on the viewed
Answer
2.0 HD
A re-rating of a vessel is not completed till the new plate fixing is overseen by:
a) Jurisdiction
b) Authorized Inspector
c) Pressure Vessel Engineer
d) Insurance Surveyor
Answer
Authorized Inspector
The filler metal used should have min. specified tensile strength equal to or greater then the
min. specified strength of the base metal. If a filler metal is used that has a min. tensile
strength lower than the min. tensile strength of the base metal then:
a) Lower strength electrodes are not permitted for repair welding
b) Max/ 50% of thickness can be repair using such electrodes
1
,c) increase weld deposit thickness suitably to compensate the lower strength
d) b & c
Answer
b&c
The greatest time between the testing of pressure relieving devises per API 510?
a) 5 years
b) Pressure relief valves shall be tested at intervals that are frequent enough to verify that
the valves preform reliably
c) 10 years
d) Pressure relief devises must be tested every shutdown
Answer
10 years
If you were looking for the last date that a pressure relief valve was set, where should this
information always be?
a) Product literature from the valve company
b) The API mandatory computer inspections records
c) Relief valve tag
d) In the records of the repair shop
Answer
Relief valve tag
Which of the following should a progressive record for a pressure vessel contain?
a) The exact location on a plot plan
2
,b) The piping schedule for the vessel
c) A complete weld map from the original construction plans
d) Construction and design information, operating and inspection history
Answer
Construction and design information, operating and inspection history
If performing an external inspection of a vessel what consideration needs to be given to the
external insulation?
a) It shall always be removed to inspect underneath
b) If insulation is in good condition and the vessel operates within the high and low tempera-
tures stated in API 510, removal of insulation is not necessary for inspection of the vessel
c) Selected portions must be removed for inspections
d) You may not use any plug locations used for UT thickness readings to inspect the vessel
Answer
If insulation is in good condition and the vessel operates within the high and low tempera-
tures stated in API 510, removal of insulation is not necessary for inspection of the vessel
What must be considered important in the inspection of metallic-lining?
a) That there re no dissimilar welds
b) That the linings are made of pure alloy only
c) that vent holes exist in all liners
d) That there are no holes or cracks present in the lining
Answer
3
, That there are no holes or cracks present in the lining
Which of the following over pressure protection is not found on pressure vessel?
a) Safety relief
b) Pilot operated
c) Rupture disk
d) Pressure/vacuum vent
Answer
Pressure/vacuum vent
Charpy impact tests are intended to prove that the material is?
a) toughness - at the desired MDMT of the vessel to be constructed using that material
b) Some what prone to brittle fracture
c) Acceptable to use in high temp. service
d) Not required to be heat treated
Answer
toughness - at the desired MDMT of the vessel to be constructed using that material
According to Section IX, all welders must be re-tested for a process:
a) If they have not been tested before
b) If they have not used the process in the past 1 month or longer and have not been weld-
ing with a different processes
c) If they have not used the process in the past 3 months or longer
d) If the welder's ability to make sound welds with the process is in doubt
Answer
4
The gamma ray radiography has max. density of:
a) 2.0 HD
b) 4.0 HD
c) no upper limit is prescribed
d) depends on the viewed
Answer
2.0 HD
A re-rating of a vessel is not completed till the new plate fixing is overseen by:
a) Jurisdiction
b) Authorized Inspector
c) Pressure Vessel Engineer
d) Insurance Surveyor
Answer
Authorized Inspector
The filler metal used should have min. specified tensile strength equal to or greater then the
min. specified strength of the base metal. If a filler metal is used that has a min. tensile
strength lower than the min. tensile strength of the base metal then:
a) Lower strength electrodes are not permitted for repair welding
b) Max/ 50% of thickness can be repair using such electrodes
1
,c) increase weld deposit thickness suitably to compensate the lower strength
d) b & c
Answer
b&c
The greatest time between the testing of pressure relieving devises per API 510?
a) 5 years
b) Pressure relief valves shall be tested at intervals that are frequent enough to verify that
the valves preform reliably
c) 10 years
d) Pressure relief devises must be tested every shutdown
Answer
10 years
If you were looking for the last date that a pressure relief valve was set, where should this
information always be?
a) Product literature from the valve company
b) The API mandatory computer inspections records
c) Relief valve tag
d) In the records of the repair shop
Answer
Relief valve tag
Which of the following should a progressive record for a pressure vessel contain?
a) The exact location on a plot plan
2
,b) The piping schedule for the vessel
c) A complete weld map from the original construction plans
d) Construction and design information, operating and inspection history
Answer
Construction and design information, operating and inspection history
If performing an external inspection of a vessel what consideration needs to be given to the
external insulation?
a) It shall always be removed to inspect underneath
b) If insulation is in good condition and the vessel operates within the high and low tempera-
tures stated in API 510, removal of insulation is not necessary for inspection of the vessel
c) Selected portions must be removed for inspections
d) You may not use any plug locations used for UT thickness readings to inspect the vessel
Answer
If insulation is in good condition and the vessel operates within the high and low tempera-
tures stated in API 510, removal of insulation is not necessary for inspection of the vessel
What must be considered important in the inspection of metallic-lining?
a) That there re no dissimilar welds
b) That the linings are made of pure alloy only
c) that vent holes exist in all liners
d) That there are no holes or cracks present in the lining
Answer
3
, That there are no holes or cracks present in the lining
Which of the following over pressure protection is not found on pressure vessel?
a) Safety relief
b) Pilot operated
c) Rupture disk
d) Pressure/vacuum vent
Answer
Pressure/vacuum vent
Charpy impact tests are intended to prove that the material is?
a) toughness - at the desired MDMT of the vessel to be constructed using that material
b) Some what prone to brittle fracture
c) Acceptable to use in high temp. service
d) Not required to be heat treated
Answer
toughness - at the desired MDMT of the vessel to be constructed using that material
According to Section IX, all welders must be re-tested for a process:
a) If they have not been tested before
b) If they have not used the process in the past 1 month or longer and have not been weld-
ing with a different processes
c) If they have not used the process in the past 3 months or longer
d) If the welder's ability to make sound welds with the process is in doubt
Answer
4
