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The web-based Source Inspector Electrical Equipment (API-SIEE) practice test software can be used through browsers like Firefox, Safari, and Google Chrome. The customers don't need to download or install any excessive plugins or software in order to use the web-based Source Inspector Electrical Equipment (API-SIEE) practice exam format. The web-based Source Inspector Electrical Equipment (API-SIEE) practice test software format is supported by different operating systems like Mac, iOS, Linux, Windows, and Android.
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NEW QUESTION # 10
According to API 541, for the bearing temperature rise test, motor bearing stable temperature is defined:
Answer: B
Explanation:
The correct answer isC. In API 541, during thebearing temperature rise test, a motor bearing is considered to have reachedstable temperaturewhen thetemperature rise does not increase by more than 1°C over a period of one hour. This definition is important because the acceptance of the test depends on showing that the bearing temperature has effectively leveled off under the test conditions rather than still trending upward. If temperature continues to rise beyond that limit, the test has not yet reached thermal stability and the result cannot be treated as final.
This criterion is used in factory testing of large motors to confirm acceptable bearing thermal performance, lubrication condition, mechanical fit, and overall operating behavior at the test load and speed. In source inspection, the inspector verifies not only the final measured bearing temperatures, but also that thetest duration, stabilization criterion, instrumentation, and recorded resultscomply with the governing standard and approved procedures. A 30-minute interval is not the API 541 stability definition, and a 2°C rise in one hour is too permissive. Therefore, the correct API 541 requirement isa rise of not more than 1°C in one hour, which makesoption Cthe verified answer.
NEW QUESTION # 11
Machine vibration measurement using non contacting probes are taken:
Answer: B
Explanation:
The correct answer isD. In rotating electrical equipment,non-contacting probesnormally refer toproximity probesthat are mounted in or at thebearing housingsto monitorshaft relative vibration. These probes do not touch the shaft; instead, they sense shaft motion relative to the bearing housing. In practice, radial vibration is usually monitored in thehorizontal and vertical directions, and where applicable axial movement is also monitored using an axial probe arrangement. That makes option D the only technically correct choice.
The other options are not consistent with standard vibration measurement practice. Measurements taken on thebaseplateorframeare generally made with contact sensors such as accelerometers or velocity pickups, not non-contacting probes. Option B is incorrect because vibration is not defined as being measured "on the shaft at 1.2 times the running speed" as a standard probe location criterion. The API guide includeselectric motors over 500 HPamong its covered equipment categories and emphasizessource inspection and quality surveillance activitiestied to applicable standards, testing, and verification during manufacture.
NEW QUESTION # 12
What is the common industry term used for the dielectric withstand test?
Answer: D
Explanation:
The correct answer isAbecause thecommon industry termfor adielectric withstand testis theHipot test, short forhigh-potential test. This test is used to verify that the insulation system of electrical equipment can withstand an applied voltage higher than its normal operating voltage for a specified period without breakdown, flashover, or excessive leakage current. It is widely used during factory testing and acceptance testing for equipment such as switchgear, control panels, transformers, motors, and cables.
In inspection practice, the dielectric withstand or Hipot test is an important confirmation of insulation integrity after assembly or manufacture. It is different from an insulation resistance test, which measures resistance in ohms using DC voltage. A Hipot test instead stresses the insulation at a specified elevated voltage to demonstrate that the insulation system is sound. The other options are incorrect becausevoltage testis too generic,current testdoes not describe the purpose, andcapacitor microfarad dielectric testis not a recognized common industry name. Therefore, the standard industry term for the dielectric withstand test isHipot test, makingoption Athe verified answer.
NEW QUESTION # 13
Which definition BEST matches an Instrument Ground Bus (IGB)?
Answer: A
NEW QUESTION # 14
Which of the following is listed as a typical transformer inspection point in the guide?
Answer: C
NEW QUESTION # 15
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