Ideal API API-SIEE Exam Questions For Quick Success Updated 2026

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API API-SIEE Exam Overview:

Certification Vendor:American Petroleum Institute (API)
Exam Name:Source Inspector Electrical Equipment
Exam Number:API-SIEE
Exam Format:Closed-book exam, Multiple-choice questions
Exam Duration:195 minutes
Certificate Validity Period:3 years
Passing Score:Scaled score (approx. 70-75%, official value not disclosed)
Exam Price:$495 - $695 USD (varies by membership status and region)
Real Exam Qty:110 (100 scored, 10 unscored pretest)
Available Languages:English
Related Certifications:API-SIRE (Source Inspector Rotating Equipment)
API-SIPE (Source Inspector Pressure Equipment)
Recommended Training:API SIEE Study Guide & Body of Knowledge
API Training Courses
Exam Registration:Pearson VUE Testing
API Official Certification Portal
Sample Questions:API API-SIEE Sample Questions
Exam Way:Computer-based; available at test centers or remote proctored online
Pre Condition:Minimum experience: 2 years electrical inspection OR 4 years electrical engineering/technology OR equivalent education + experience; prequalification required
Official Syllabus URL:https://www.api.org/products-and-services/individual-certification-programs/certifications/apisiee

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API API-SIEE Exam Syllabus Topics:

TopicDetails
Topic 1
  • Liquid-Immersed Transformers: Covers the design, construction, and applicable industry codes and standards for liquid-immersed transformers.
Topic 2
  • Equipment Risk Assessment: Focuses on developing inspection project plans, inspection and test plans, and reviewing reports to assess equipment risk.
Topic 3
  • Examination Methods, Tools and Equipment: Covers the inspection techniques used in the field, including dimensional, visual, electrical testing, functional testing, and coatings inspections.
Topic 4
  • Terms and Definitions: Covers the foundational terminology and definitions used throughout electrical source inspection work.
Topic 5
  • Source Inspection Performance: Covers inspector conduct, safety, project document review, report writing, and handling nonconformances and deviations during inspections.
Topic 6
  • Motor Control Centers (Low to Medium Voltage): Covers design standards, materials, enclosure types, breakers, amp capacity, cable entry, and grounding components for MCCs.
Topic 7
  • Electrical Inspection Tools and Test Equipment: Covers the tools and test equipment used by inspectors to perform electrical source inspections.
Topic 8
  • Switchgear (Low & Medium Voltage): Covers design, construction, ratings, interlocks, wiring, enclosures, bus compartments, breakers, transformers, and metering for LV and MV switchgear.
Topic 9
  • Electrical Induction Motors: Covers design and construction standards, materials of construction, and motor testing requirements for electrical induction motors.

API Source Inspector Electrical Equipment Sample Questions (Q26-Q31):

NEW QUESTION # 26
What is an inspection waiver?

Answer: A

Explanation:
The correct answer isB. In source inspection practice, aninspection waiveris the formal permission to proceed past an identifiedhold pointwithout thesource inspector being present. A hold point is a stage in manufacturing, fabrication, testing, or final inspection where work is not supposed to proceed until the required witnessing or verification has been completed. If the inspector cannot attend, the purchaser or authorized party may issue a waiver so the manufacturer can continue without delaying production.
This is different from the other options. OptionAis too broad because an inspection waiver is not a blanket permission to proceed without any purchaser representative at any stage; it is usually tied to aspecific inspection point. OptionsCandDdescribe situations involvingnonconformance disposition or concession, not a waiver of inspection attendance. Those matters require technical review and authorization through the nonconformance process.
Within API-aligned source inspection, control ofhold points, witness points, documentation, and release authorityis a key part of the inspection process. Therefore, an inspection waiver is best defined aspermission to proceed without the source inspector present at a hold point, makingoption Bthe verified answer.


NEW QUESTION # 27
Before starting surveillance, the source inspector should confirm that the supplier/vendor has:

Answer: B


NEW QUESTION # 28
The cosine of the difference in phase angle between voltage and current is:

Answer: A

Explanation:
The correct answer isA, power factor. In AC electrical systems, the phase relationship betweenvoltageandcurrentis an important indicator of how effectively electrical power is being used.
Thecosine of the phase angle differencebetween voltage and current is called thepower factor.
Mathematically, power factor expresses the ratio ofreal power, which performs useful work, toapparent power, which is the total power supplied to the circuit. When voltage and current are in phase, the cosine value is 1 and the power factor is unity. When they are out of phase due to inductive or capacitive effects, the power factor becomes less than 1.
From a source inspection and quality surveillance standpoint, understanding power factor is important when reviewing electrical test data, motor performance, transformer loading characteristics, and system efficiency information.Real poweris measured in watts,apparent powerin volt-amperes, andmhois a unit of conductance, so none of those terms define the cosine of the phase angle itself. Therefore, the correct technical term for this cosine relationship ispower factor.


NEW QUESTION # 29
During switchgear source inspection, which item must be verified to prevent opening a medium-voltage door when the isolation switch handle is in the full ON position?

Answer: D


NEW QUESTION # 30
Positive-pressurization and purging are based on the principle that an enclosure or room located in a classified location can:

Answer: B

Explanation:
The correct answer isC. In hazardous or classified locations, positive pressurization and purging protect electrical equipment by preventing the surrounding flammable atmosphere from entering the enclosure. The operating principle is that the enclosure, cabinet, or room is supplied withclean air or an inert gasat a pressure and flow rate high enough to keep hazardous gas or vapor out before and during equipment operation. This allows equipment that might otherwise not be suitable for direct exposure to a classified atmosphere to operate safely when the purge and pressure conditions are maintained.
From an API source-inspection perspective, this aligns with the guide's emphasis on verifying compliance with thespecified protection method, nameplate data, project drawings, and applicable hazardous-area requirements during inspection and surveillance. The inspector's concern is not simply whether the enclosure exists, but whether the correct protective concept has been applied and supported by proper fabrication, testing, and documentation. Options A and B describe the hazardous atmosphere itself, not the protection principle. Option D is incorrect because normal arcing devices still require a suitable protection method; pressurization does not rely on relays arcing normally.


NEW QUESTION # 31
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