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WorksheetsPre-Test API 570
Total questions: 21
Worksheet time: 18mins
Under the requirement of ASME code, Section
IX, welding procedure specification used to:
Test the welding machine
Ensure weldment properties.
Determine the welder’s skills
Determine the welding operator’s skills.
Which of the following is the cause of corrosion under insulation(CUI) of refinery and chemical plant equipment?
The corrosion is caused from the use of the wrong material for the equipment
The corrosion is caused by not having an on-going and complete inspection program
The corrosion is caused by long term lack of maintenance
The corrosion results from water trapped under insulation and fireproofing
All of the following can be an API-570 authorized inspection agency except the inspection organization of:
The owner/user
The jurisdiction
A manufacturer
An insurance company
The ASME section IX A number is based on
The weld ability characteristic of a groups of metal alloy
The chemical composition of the electrode.
The chemical composition of the deposit weld metal
A group of base metal having specified impact test requirements.
A welder’s performance qualification may expire when the welder has not welded particular process for more than:
1 month
10 weeks
3 months
6 months
What is the interval for thickness measurement on a Class 1 piping system?
5 years
10 years
The lesser of 5 years or ½ remaining life of the pipe
The lesser of 10 years or ½ remaining life of the pipe
What is a defect in pressure piping?
An imperfection that exceeds the specified acceptance criteria.
A response or indication of a flaw noted during the application of non-destructive examination.
Flaws or others discontinuities discovered during inspection.
A flaw that may or may not be rejectable, depending upon size.
API 570 Inspection code covers the in-service:
Inspection and repair only.
Inspection, Testing, Operation & Maintenance.
Inspection, Repair, Alteration & re-rating
Inspection only
The external inspection on a Class 2 line should be conducted?
Every 5 years
Every 10 years
The lesser of 5 years or ½ remaining life of the pipe
The lesser of 10 years or ½ remaining life of the pipe
Thickness measurement on Injection points should be conducted at least every?
1 year
3 years
5 years
10 years
Which of the following are pressure class ratings covered by ASME B16.5?
150, 300, 400, 600, 900, 1500, 2500.
125, 150, 300, 400, 600, 900, 1500, 2500.
150, 300, 400, 600, 700, 900, 1000, 1500.
150, 300, 400, 450, 600, 900, 1500.
The________ is responsible for the control of the piping system inspection programs, inspection frequencies, and maintenance of piping.
Contractor
Authorized Piping Inspector
Jurisdiction
Owner-User
(a) ‘F is the minimum design temperature for A-358 Type 304L.
(a) 'F is the minimum pre-heat temperatures for 0.5” thick, P-1 material ?
(a) 'C is the holding temperature for P-1 material (carbon steel) 2” thickness that being PWHT.
(a) hours is the minimum holding time for a P-1 material (carbon steel) 2” thickness that being PWHT.
The “Quality Factor (E)” for A106 Seamless pipe is (a)
In March 2004, a TML was measured at 0.310”. In March 2011 the same TML was measured at 0.289”.
Calculate the Corrosion Rate.
Answer = (a) ipy
Calculate the Corrosion Rate for the above CML .
Answer = (a) ipy
Given Corrosion Rate is 0.006 ipy and the Remaining Corrosion Allowance is 0.096”.
Determine the Intervals for the Thickness Measurement and External Inspection (Class 1).
Answer = (a) Years
What is the “Specified Minimum Tensile Strength (SMTS)” of A106 Gr B pipe?
Answer = (a) KSI
