API-SIEE問題例、API-SIEE勉強方法

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API API-SIEE 認定試験の出題範囲：

トピック	出題範囲
トピック 1	Terms and Definitions: Covers the foundational terminology and definitions used throughout electrical source inspection work.
トピック 2	Equipment Risk Assessment: Focuses on developing inspection project plans, inspection and test plans, and reviewing reports to assess equipment risk.
トピック 3	Liquid-Immersed Transformers: Covers the design, construction, and applicable industry codes and standards for liquid-immersed transformers.
トピック 4	Source Inspection Performance: Covers inspector conduct, safety, project document review, report writing, and handling nonconformances and deviations during inspections.
トピック 5	Motor Control Centers (Low to Medium Voltage): Covers design standards, materials, enclosure types, breakers, amp capacity, cable entry, and grounding components for MCCs.

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API-SIEE勉強方法 & API-SIEE最新関連参考書

API-SIEEテストの質問で提供されるサービスは、非常に具体的かつ包括的なものです。まず第一に、私たちのテスト材料は多くの専門家から来ています。材料の金含有量は非常に高く、更新速度は高速です。 API-SIEE試験準備では、学習ニーズに応じていつでも最適な情報を見つけて、いつでも調整して完成させることができます。 API-SIEE学習教材は、情報を提供するだけでなく、学習とレビューのスケジュールに従って、API-SIEE学習ガイドはお客様に合わせてカスタマイズされています。

API Source Inspector Electrical Equipment 認定 API-SIEE 試験問題 (Q37-Q42):

質問 # 37
Circuit breakers over 1000 V equipped with stored energy mechanisms shall perform which of the following functions?

A. Prevent the release of the stored energy unless the mechanism has been fully charged
B. Indicate whether power is available to the circuit breaker
C. Locate the position of the charging mechanism
D. Identify the presence of fault current flow through the circuit breaker

正解：A

解説：
The correct answer isD. Formedium-voltage circuit breakers over 1000 Vthat use astored-energy operating mechanism, a key safety and functional requirement is that the mechanism mustnot release the stored energy until it has been fully charged. This prevents incomplete closing or tripping operations, avoids unreliable breaker performance, and reduces the risk of mechanical damage or unsafe operating conditions. In other words, the breaker mechanism must include an interlock or control feature that blocks release of the spring or stored-energy system unless the charging cycle has been properly completed.
The other options do not express the required stored-energy mechanism function. Indicating control power availability may be useful, but it is not the defining requirement of the stored-energy mechanism itself.
Detecting fault current is the job of protective relays and sensing devices, not the charging mechanism.
Locating the position of the charging mechanism is not a required protective function. In API-aligned source inspection ofswitchgear, the inspector verifies mechanism operation, interlocks, test records, and compliance with the applicable standards and project specifications. Therefore, the required function is toprevent release of stored energy unless the mechanism is fully charged, makingoption Dthe verified answer.

質問 # 38
Which edition of industry codes and standards applies to the equipment being inspected?

A. The edition supplied by the inspection agency
B. The edition found at the point of use
C. The latest edition of the industry standard
D. The edition specified in the engineering design

正解：D

解説：
The correct answer isD. The edition specified in the engineering design. In API source inspection practice, the inspector does not choose whichever code edition appears newest or most convenient. The applicable requirements are the ones defined by thepurchase order, engineering design documents, project specifications, approved drawings, and referenced codes and standards identified for that job. Source inspection is a verification function, so the inspector must confirm compliance against thecontractual and technical basis of designestablished for the equipment being manufactured.
This is important because different editions of the same standard may contain different rating rules, test requirements, construction details, or acceptance criteria. If an inspector were to apply the latest edition without project authorization, that could create conflict with the approved design basis and lead to incorrect acceptance or rejection. Likewise, the edition found at the point of use or supplied by the inspection agency is not automatically controlling unless it matches the project's specified design basis.
Therefore, for inspection and quality surveillance of electrical equipment, the governing edition is theedition specified in the engineering designand related contract documents.

質問 # 39
During the course of manufacturing the supplier/vendor may propose design changes that could impact cost, schedule and/or quality. In such cases, the source inspector should:

A. prepare a cost/benefit analysis in order to justify their acceptance or rejection of the proposed changes.
B. request that the supplier/vendor propose such changes in writing for review by the purchaser.
C. request that the supplier/vendor develop a cost/benefit analysis for review and approval by the inspector.
D. prepare a summary of the changes made for inclusion in their report and subsequent action by the purchaser.

正解：B

解説：
The correct answer isDbecause the API source inspection approach makes a clear distinction between the responsibilities of thesupplier, thesource inspector, and thepurchaser. The source inspector is not the design authority and does not have the authority to approve engineering changes that may affect cost, delivery, performance, code compliance, or quality. When a vendor proposes a change during manufacturing, the proper action is to ensure that the proposed deviation or revision isformally documented in writingand submitted to thepurchaser for review and disposition.
This preserves document control, traceability, and contractual accountability. It also ensures that any effect on drawings, datasheets, inspection plans, certifications, testing requirements, and final acceptance is evaluated by the party with approval authority. Option A is incomplete because it implies the change may already have been made. Options B and C are incorrect because the inspector does not perform or approve cost-benefit justification for design changes. The inspector's role is to identify, document, report, and verify compliance with approved requirements, not to authorize modifications independently.

質問 # 40
According to IEEE C57.12.00, a durable, metal, name plate shall be affixed to each transformer by the:

A. owner.
B. purchaser.
C. manufacturer.
D. QA/QC Inspector.

正解：C

解説：
The correct answer isA, manufacturer. IEEE C57.12.00 requires that each transformer be provided with adurable metal nameplateattached by themanufacturer. This requirement exists because the nameplate is a permanent identification and rating record for the transformer. It contains critical information such as manufacturer identity, serial number, kVA rating, voltage ratings, frequency, impedance, cooling class, temperature rise, and other essential design and operating data. Since this information originates from the transformer design and production records, responsibility for affixing the plate belongs to the manufacturer, not to the owner, purchaser, or inspector.
From an API source inspection perspective, the nameplate is an important verification point during final inspection. The source inspector checks that the plate is present, permanently attached, legible, and consistent with the approved data sheet, purchase order, drawings, and test records. A missing, incorrect, or improperly marked nameplate can create traceability problems and may result in nonconformance. Therefore, the correct party responsible for affixing the durable metal nameplate is themanufacturer, makingAthe verified answer.

質問 # 41
According to API 541, prior to mechanical running test, each mounting foot shall be checked for "soft feet." How is this check conducted?

A. Mounting bolt torque is verified with a calibrated torque wrench with no visible gaps observed between the foot and base interface
B. A dial indicator is oriented vertically and zeroed prior to base bolt tightening with a reading taken after tightening to confirm movement is within tolerance
C. After torquing mounting bolts, a vertically oriented, zeroed, dial indicator is attached to each foot and a reading taken after loosening of the bolt torque to verify movement is within tolerance
D. Feeler gauges are used at the foot to base interface to verify gap tolerance has not been exceeded

正解：C

解説：
The correct answer isB. In large motor inspection practice underAPI 541, asoft footcheck is performed to confirm that all motor mounting feet sit properly on the base and that tightening or loosening the hold-down bolts does not distort the motor frame. The accepted method is to first have the mounting bolts tightened, then place adial indicator verticallyat the foot,zero the indicator, and observe the movement when the bolt torque isrelieved or loosened. If the foot lifts or the frame shifts beyond the permitted tolerance, the condition indicates soft foot and must be corrected before the mechanical running test.
This matters because soft foot can introduce frame strain, misalignment, elevated vibration, bearing loading, and unreliable mechanical test results. In source inspection, the purpose is not merely to verify bolt tightness or visible fit-up, but to confirm that the machine is mounted without distortion under actual installed clamping conditions. Option A may reveal a gap but does not fully assess frame movement under bolt load. Option C reverses the usual verification sequence. Option D is inadequate because torque and visual appearance alone do not confirm absence of soft foot.

質問 # 42
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