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API 510 Test 4:
Q. 1/30: When an RBI assessment is used to increase or decrease inspection intervals, the assessment shall be conducted on Class 1 systems at a maximum interval of __________ years
5
10
15
3
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Q 1/30
Test Progress : 3.33%
Q. 2/30: Listed below are several examples of a CLASS 1 piping system. Which one does not belong ?
Anhydrous hydrogen chloride;
Hydrofluoric acid
Piping over or adjacent to water and piping over public throughways
Distillate and product lines to and from storage and loading
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Q 2/30
Test Progress : 6.67%
Q. 3/30: Of the three classification of piping systems, which includes the majority of unit processes and selected off-site piping ?
Class 3
Combination of classes 1 and 2
Class 1
Class 2
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Q 3/30
Test Progress : 10.00%
Q. 4/30: Class 3 piping is described as being in services
with the highest potential of resulting in an immediate emergency if a leak occurs
that are flammable but do not significantly vaporise when they leak and are not located in high-activity areas
that are not flammable and pose no significant risk to populated areas
that are not in classes 1 and 2.
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Q 4/30
Test Progress : 13.33%
Q. 5/30: Who establishes inspection interval for thickness measurements, external visual inspections and for internal and supplemental inspections ?
Piping engineer;
Owner-user or the inspector
Chemical Engineer
Piping engineer and the jurisdiction
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Q 5/30
Test Progress : 16.67%
Q. 6/30: Thickness measurement inspection should be scheduled based on the calculation of not more than
one half the remaining life determined from corrosion rates or t he maximum interval of 5 years whichever is shorter.
one half the remaining life determined from corrosion rates or the maximum interval allowed by API 570 in Table 1, whichever is shorter
one fourth the remaining life determined from corrosion rates or the maximum interval of 10 years whichever is shorter.
one quarter the remaining life determined from corrosion rates or the maximum interval allowed by API 570 in Table 1, whichever is shorter.
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Q 6/30
Test Progress : 20.00%
Q. 7/30: For external inspections for potential corrosion under insulation (CUI) on Class 1 systems, the examination should include atleast __________ percent of all suspect areas and __________ percent of all areas of damaged insulation
50, 75
50, 33
75, 50
25, 10
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Q 7/30
Test Progress : 23.33%
Q. 8/30: Piping systems that are known to have a remaining life of over __________ years or that are protected against external corrosion need not have insulation removed for teh periodic external inspection
10
15
5
20
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Q 8/30
Test Progress : 26.67%
Q. 9/30: For Class 3 piping systems, the examination for corrosion under insulation (CUI) should include atleast __________ percent of all suspect areas
50
30
10
0
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Q 9/30
Test Progress : 30.00%
Q. 10/30: For Class 2 piping, the extent of CUI inspections on a system operating at – 45oF will be
75 % of damaged areas, 50 % of suspect areas
50 % of suspect areas, 33 % of damaged areas
33 % of damaged areas, 50 % of suspect areas
none of the above
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Q 10/30
Test Progress : 33.33%
Q. 11/30: Small bore piping (SBP) that is Class I shall be inspected
where corrosion has been experienced
at the option of the inspector
to the same requirements as primary process piping
only if it has dead legs
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Q 11/30
Test Progress : 36.67%
Q. 12/30: Inspection of small bore piping (SBP) that is secondary and auxiliary (associated with instruments and machinery) is
only required where corrosion has been experienced
optional
only if it has dead legs
only if it is threaded
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Q 12/30
Test Progress : 40.00%
Q. 13/30: If an inspector finds threaded small bore piping (SBP) associated with machinery and subject to fatigue damage, he should :-
plan periodically to assess it and consider it for possible renewal with a thicker wall or upgrade it to welded components.
inspect it only if it is corroded and the class of service requires an inspection.
call for dismantling the threaded joints for close inspection to determine if any cracks are in the roots of the threads.
have all the threaded piping renewed at each inspection period.
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Q 13/30
Test Progress : 43.33%
Q. 14/30: An eight-inch diameter piping system is installed in December 1979. The installed thickness if measured as 0.34". The minimum thickness of the pipe is 0.20". It is inspected 12/83 and the thickness is found to be 0.32". An inspection 12/87 reveals a loss
0.005"/year
0.0075"/year
0.00375"/year
0.0025"/year
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Q 14/30
Test Progress : 46.67%
Q. 15/30: Using the information in question 95, calculate the short-term corrosion rate
0.005"/year
0.0075"/year
0.00375"/year
0.0025"/year
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Q 15/30
Test Progress : 50.00%
Q. 16/30: Using the information in questions 95 and 96, determine the remaining life of the system
18 years
15 years
12 years
6 years
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Q 16/30
Test Progress : 53.33%
Q. 17/30: You have a new piping system that has just been installed. It is completely new and no information exists to establish a corrosion rate. Also, information is no available on a similar system. You decide to put the system in service and NDT it later to det
1 month
3 month
6 month
12 month
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Q 17/30
Test Progress : 56.67%
Q. 18/30: After an inspection interval is completed and if calculations indicate that an inaccurate rate of corrosion has been assumed in a piping system, how do you determine the corrosion rate for the next inspection period ?
Check the original calculations to find out what the error is in the original assumption.
Unless the corrosion rate is higher, the initial rates shall be used.
The corrosion rate shall be adjusted to agree with the actual rate found.
If the corrosion rate is higher than originally assumed, call in a corrosion specialist.
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Q 18/30
Test Progress : 60.00%
Q. 19/30: If a piping system is made up of unknown materials and computations must be made to determine the minimuthickness of the pipe, what can the inspector or the piping engineer do t establish the minimum thickness ?
The lowest grade material and joint efficiency in the applicable code may be assumed for calculations.
Samples must be taken from the piping and testing for maximum tensile stress and yield strength will determine the allowable stress to be used.
The piping made of the unknown material must be removed from service and current piping of known material must be installed.
The piping of unknown material may be subjected to a hydrostatic stress tests while having strain gages on it to determine its yield strength and thus allowable stress
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Q 19/30
Test Progress : 63.33%
Q. 20/30: A piping engineer is designing a piping service with high potential consequences if a failure occurs, i.e. a 350 psi natural gas line adjacent to a high density population area. What should he consider doing for unanticipated situations ?
Have all his calculations checked twice.
Increase the required minimum thickness.
Notify the owner-user and the jurisdiction.
Set up an emergency evacuation procedure
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Q 20/30
Test Progress : 66.67%
Q. 21/30: When evaluating locally thinned areas, the surface of the weld includes __________ on either side of the weld or __________ times the minimum measured thickness on either side of the weld, whichever is greater.
0.5", 3
1", 2
2", 1
1.5", 1.5
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Q 21/30
Test Progress : 70.00%
Q. 22/30: An inspector finds a thin area in a fabricated 24" diameter pipe. The thin area includes a longitudinal weld in the pipe and is 10 feet long and 2 foot circumferentially. Calculations show that with 0.85 joint factor, the pipe must be repaired, renewed, e
Write the results of the inspection up and leave it with the owner.
Radiograph the weld 100 % and increase the joint factor to one.
Insist that the weld be repaired or renewed or that the pressure be lowered.
Call in a regulator agency to force the owner to repair, renew, etc. the line.
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Q 22/30
Test Progress : 73.33%
Q. 23/30: Piping stress analysis is done during the system's original design. How can the inspector make use of stress analysis information ?
An inspector cannot use this information. It is only meaningful to a piping engineer.
It can be used to make sure the piping system was originally evaluated and designed correctly.
It can be used to concentrate inspection efforts at locations most prone to fatigue or creep damage, and to solve vibration problems.
The inspector should use this information to evaluate the need for conducting additional piping stress analysis.
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Q 23/30
Test Progress : 76.67%
Q. 24/30: You are inspecting a piping system. You find a significant loss of material (a major increase of corrosion rate) in gas oil piping (used as reboiler oil, temperature 500 degrees F) on a Fluid Catalytic Cracking Unit. What is the best course of action for
The losses may be reported to your supervisor for corrective response
The losses should be recorded and reported in your final report after the unit has started.
It shall be reported to the owner-user for appropriate action.
Replace excessively thin piping and note replacement in the final report after unit start-up.
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Q 24/30
Test Progress : 80.00%
Q. 25/30: The __________ shall maintain appropriate permanent and progressive records of each piping system covered by API 570.
inspector
owner-user
jurisdiction
examiner
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Q 25/30
Test Progress : 83.33%
Q. 26/30: When making repairs and alterations to piping systems, the principles of __________ or the code to which the piping system was built shall be followed :-
ASME B31.3
API 570
API 574
ASME B&PV code
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Q 26/30
Test Progress : 86.67%
Q. 27/30: Repair and alteration work must be done by a repair organisation as defined in API 570 and must be authorised by the __________ prior to its commencement
jurisdiction
inspector
owner-user
examiner
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Q 27/30
Test Progress : 90.00%
Q. 28/30: Authorisation for alteration work to a piping system may be given by the inspector after :-
notifying the jurisdiction and getting their approval
consulting API 570 and getting the approval of the owner-user
consultation with and approval by a piping engineer
discussing with and consent by an examiner
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Q 28/30
Test Progress : 93.33%
Q. 29/30: A repair procedure involving welding requires that the root pass of the weld be inspected before continuing the weld. A "hold" on the repair is required at this point. Who designates this "hold?"
A metallurgist
The owner-user
An API 570 inspector
The welder supervisor
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Q 29/30
Test Progress : 96.67%
Q. 30/30: What type of repairs and procedures may the inspector give prior general authorisation to continue (provided the inspector is satisfied with the competency of the repair organisaton ) ?
major repairs and minor procedures
limited or routine repairs and procedures
alterations and re-ratings
minor re-ratings and alterations
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Q 30/30
Test Progress : 100.00%
Q. 31/30: Who approves all proposed methods of design, execution, materials, welding procedures, examination and testing of in-service piping ?
The jurisdiction or the piping engineer as appropriate
The analyst and the operator as appropriate
The examiner and the piping programmer as appropriate
The inspector or the piping engineer as appropriate
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Q 31/30
Test Progress : 103.33%
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