TAILED ANSWER EXPLANATIONS | A+ STUDY RESOURCE |BRAND
What is the maximum allowed time between the testing of pressure relieving devices per
API 510?
1. 5 years.
2. Pressure relief valves shall be tested at intervals that are frequent enough to verify that
the valves perform reliably.
3. 10 years.
4. Pressure relief devices must be tested at every shutdown.
Answer
10 years.
Who is responsible for the rerating calculations of a Section Vlll Div. 1 vessel?
1. The manufacturer or an owner-user engineer (or his designated representative).
2. The chief inspector and the unit engineer.
3. The API authorized inspector
4. A professional engineer only, is allowed to perform these calculations.
Answer
The manufacturer or an owner-user engineer (or his designated representative).
If the requirements of API 510 are met who determines if a temporary fillet weld patch may
be used in a repair?
1. The API authorized inspector.
1
,2. An engineer competent in pressure vessel design and the API authorized inspector.
3. A repair concern which holds a valid NBIC R stamp.
4. Any of the above.
Answer
An engineer competent in pressure vessel design and the API authorized inspector.
The maximum carbon content of weldable steel per ASME Code is?
1. .35 %
2. .035 %
3. .0035 %
4. 3.5 %
Answer
.35 %
Per API 510 what is the recommended shell temperature during a hydrostatic test of a vessel
1" thick?
1. 300 F above ambient.
2. 650 F above ambient.
3. 10 ° F above MDMT.
4. 30 ° F above testing liquids temperature.
Answer
10 ° F above MDMT.
If you were looking for the last date that a pressure relief valve was set, where should this
information always be?
2
,1. In the product literature from the valve company.
2. The API 510 mandatory computer inspection records.
3. Relief valve's tag.
4. In the records of the repair shop.
Answer
Relief valve's tag.
In what two ways may the probable corrosion rate for a new vessel be determined before
the first internal inspection?
1. Corrosion tabs and UT readings.
2. Consult Psychic Hot Line and Mr. Wizard.
3. Ask a more experienced inspector or engineer
4. From data collected on vessels providing the same or similar service or from published
data on vessels providing comparable service.
Answer
From data collected on vessels providing the same or similar service or from published data
on vessels providing comparable service.
A vessel is to undergo a hydrostatic test after an alteration; the test pressure will be 785 psi.
Using standard commercially available gauges what is the minimum and maximum gage
pressure range acceptable for this test?
1. 0-1000 to 0-3000 psi
2. 0-1500 to 0-3000 psi
3. 0-1000 to 0-2500 psi
4. 0-850 to 0-1500 psi
Answer
0-1500 to 0-3000 psi
3
, Which of the following should a progressive record for a pressure vessel contain?
1. The exact location on a plot plan.
2. The piping schedule for the vessel.
3. A complete weld map from the original construction plans.
4. 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 need be given the exter-
nal insulation?
1. It shall always be removed to inspect underneath.
2. 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.
3. Select portions must be removed for inspections.
4. You may not use any plug locations used for UT thickness reading 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 a metallic lining?
1. That there are no dissimilar welds.
2. That the linings made of pure alloy only.
3. That vent holes exist in all liners.
4. That there are no holes or cracks present in the lining.
4
What is the maximum allowed time between the testing of pressure relieving devices per
API 510?
1. 5 years.
2. Pressure relief valves shall be tested at intervals that are frequent enough to verify that
the valves perform reliably.
3. 10 years.
4. Pressure relief devices must be tested at every shutdown.
Answer
10 years.
Who is responsible for the rerating calculations of a Section Vlll Div. 1 vessel?
1. The manufacturer or an owner-user engineer (or his designated representative).
2. The chief inspector and the unit engineer.
3. The API authorized inspector
4. A professional engineer only, is allowed to perform these calculations.
Answer
The manufacturer or an owner-user engineer (or his designated representative).
If the requirements of API 510 are met who determines if a temporary fillet weld patch may
be used in a repair?
1. The API authorized inspector.
1
,2. An engineer competent in pressure vessel design and the API authorized inspector.
3. A repair concern which holds a valid NBIC R stamp.
4. Any of the above.
Answer
An engineer competent in pressure vessel design and the API authorized inspector.
The maximum carbon content of weldable steel per ASME Code is?
1. .35 %
2. .035 %
3. .0035 %
4. 3.5 %
Answer
.35 %
Per API 510 what is the recommended shell temperature during a hydrostatic test of a vessel
1" thick?
1. 300 F above ambient.
2. 650 F above ambient.
3. 10 ° F above MDMT.
4. 30 ° F above testing liquids temperature.
Answer
10 ° F above MDMT.
If you were looking for the last date that a pressure relief valve was set, where should this
information always be?
2
,1. In the product literature from the valve company.
2. The API 510 mandatory computer inspection records.
3. Relief valve's tag.
4. In the records of the repair shop.
Answer
Relief valve's tag.
In what two ways may the probable corrosion rate for a new vessel be determined before
the first internal inspection?
1. Corrosion tabs and UT readings.
2. Consult Psychic Hot Line and Mr. Wizard.
3. Ask a more experienced inspector or engineer
4. From data collected on vessels providing the same or similar service or from published
data on vessels providing comparable service.
Answer
From data collected on vessels providing the same or similar service or from published data
on vessels providing comparable service.
A vessel is to undergo a hydrostatic test after an alteration; the test pressure will be 785 psi.
Using standard commercially available gauges what is the minimum and maximum gage
pressure range acceptable for this test?
1. 0-1000 to 0-3000 psi
2. 0-1500 to 0-3000 psi
3. 0-1000 to 0-2500 psi
4. 0-850 to 0-1500 psi
Answer
0-1500 to 0-3000 psi
3
, Which of the following should a progressive record for a pressure vessel contain?
1. The exact location on a plot plan.
2. The piping schedule for the vessel.
3. A complete weld map from the original construction plans.
4. 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 need be given the exter-
nal insulation?
1. It shall always be removed to inspect underneath.
2. 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.
3. Select portions must be removed for inspections.
4. You may not use any plug locations used for UT thickness reading 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 a metallic lining?
1. That there are no dissimilar welds.
2. That the linings made of pure alloy only.
3. That vent holes exist in all liners.
4. That there are no holes or cracks present in the lining.
4
