100% Free API API-SIEE Practice Test Questions and Answers 2026

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Total 111 Questions | Updated On: May 22, 2026

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Question 1

What does the second letter of the four-letter cooling code on liquid-immersed transformers identify?

A : Internal cooling medium in contact with the windings

B : Circulation mechanism for internal cooling medium

C : External cooling medium

D : Circulation mechanism for external cooling medium

Answer: B

Question 2

Before starting surveillance, the source inspector should confirm that the supplier/vendor has:

A : only the latest code editions, regardless of contract requirements

B : the most current project documents specified in the engineering design

C : only verbal instructions from procurement

D : internal procedures but not drawings

Answer: B

Question 3

Within the context of NEMA ICS 1, which of the following describes PD 3?

A : Moisture occurs continuously, dust quantity becomes conductive when moist, and pollution is sufficient to cause tracking and erosion at a high rate

B : Moisture occurs occasionally, dust quantity is sufficient to become conductive when moist and pollution is sufficient to cause tracking or erosion at a slow rate

C : Moisture does not occur, always dry, dust insignificant and no effect from pollution

D : Moisture occurs frequently, dust quantity is sufficient to become conductive when moist, and pollution is sufficient to cause tracking or erosion at a moderate rate

Answer: D

Question 4

Which statement BEST describes the role of source inspection during manufacturing and fabrication?

A : It replaces the supplier’s quality system

B : It verifies whether the supplier’s quality system is functioning properly

C : It transfers all responsibility for product quality to the inspector

D : It is limited to post-shipment activities

Answer: B

Question 5

According to NFPA 70, abrasion protection shall be applied to what component where it passes through metal?

A : Conductor insulation

B : Rigid conduit

C : Secondary circuits

D : Semi-rigid conduit

Answer: A

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Total 111 Questions | Updated On: May 22, 2026

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