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Additionally, all operating systems also support this format. The third format is the desktop API-SIEE Practice Exam software. It is ideal for users who prefer offline API-SIEE exam practice. This format is supported by Windows computers and laptops. You can easily install this software in your system to use it anytime to prepare for the examination.
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NEW QUESTION # 52
According to NFPA 70, is the use of Teflon tape on threaded connections for conduits allowed?
Answer: D
Explanation:
The correct answer isC. NFPA 70 requires thatmetal raceways and metal enclosures be metallically joined together into a continuous electrical conductor. This requirement is fundamental because threaded conduit systems are not only mechanical connections, but also part of theequipment grounding and bonding path.
Applying Teflon tape or similar nonconductive thread sealant to conduit threads can interfere with electrical continuity across the joint, which defeats the code intent for bonding and grounding.
From an API source inspection and quality surveillance perspective, the inspector must verify that conduit systems, fittings, and enclosures are assembled in a way that preserves electrical integrity, especially where grounding continuity is critical for personnel safety, fault-current return, and hazardous-location protection methods. The use of Teflon tape is therefore not accepted as a general practice on threaded conduit connections because it can compromise the metallic path. Option A is incorrect because the rule is not limited to Class I, Division 2. Option B is incorrect because water exclusion does not override bonding requirements.
Option D is also incorrect because Teflon tape does not create an approved explosion-proof vapor seal.
NEW QUESTION # 53
According to NFPA 70, abrasion protection shall be applied to what component where it passes through metal?
Answer: C
Explanation:
The correct answer isA. According toNFPA 70, when aconductorpasses throughmetal, protection must be provided so that theconductor insulationis not damaged by sharp edges, burrs, or vibration at the metal opening. The concern is not the conduit itself, but theinsulated conductor surface, because abrasion at the point of entry can wear through the insulation and create a risk of short circuit, ground fault, arcing, or shock hazard. This is why bushings, grommets, insulated fittings, or other approved protective means are commonly required wherever insulated conductors pass through sheet metal, boxes, cabinets, gutters, or similar metallic openings.
The other options are incorrect becauserigid conduitandsemi-rigid conduitare wiring methods, not the protected element identified in this rule.Secondary circuitsare a circuit classification, not the physical component being protected from abrasion. In API-aligned source inspection and quality surveillance, this requirement is important when verifying panel wiring, junction boxes, control panels, and other electrical assemblies to ensure conductor routing and entry points comply with code and do not damage the insulation during service. Therefore, the correct answer isconductor insulation.
NEW QUESTION # 54
According to NETA, for low voltage cables a visual inspection must verify that:
Answer: A
Explanation:
The correct answer isCbecause the API guide repeatedly emphasizes that source inspection and surveillance of electrical equipment must verify installed wiring and connections against the governing project drawings.
In the guide's inspection activities, items such as"One-line Wiring Diagram Review"and confirmation that components conform to drawings and specifications are specifically identified as part of the inspection checklist. For electrical equipment inspections more broadly, the guide also requires inspectors to compare equipment and circuitry with drawings and verify that electrical details conform to those drawings.
The other options are weaker. The guide discusses low-voltage cable identification and notes that NEC mandates only certain conductor colors for neutral and protective grounding, not a blanket requirement that color codes must comply with IEEE. Also, cable shields are discussed in the context ofMV/HV cable constructionthrough conductor screens and shielding-related design features, not as a universal low-voltage visual inspection criterion. Finally, the guide does not require all terminations to use ring tongue lugs.
Therefore, verifying that cableconnections match the single-line diagramis the best verified answer.
NEW QUESTION # 55
What tool is designed to measure mechanical oscillations?
Answer: A
Explanation:
The correct answer isD. Vibration Meter. A vibration meter is specifically intended to measuremechanical oscillations, usually in terms of displacement, velocity, or acceleration. In source inspection of large electrical equipment, especiallyelectric motors over 500 HP, vibration measurement is important because excessive vibration can indicate problems such as rotor imbalance, shaft misalignment, bearing defects, looseness, soft foot, resonance, or installation errors. Since the API source inspection guide covers surveillance and verification activities for major rotating electrical equipment, understanding the purpose of vibration- measuring instruments is directly relevant to factory testing, condition verification, and acceptance evaluation.
The other options are not correct for this function. Atachometermeasures rotational speed, not mechanical oscillation. Aspectroscopeis used for optical spectrum analysis and is unrelated to machinery vibration.
Anoscilloscopedisplays electrical waveforms and can show signals from sensors, but it is not the primary instrument designed specifically to measure machine vibration in routine inspection practice. Therefore, the best answer isVibration Meter, because it directly measures the mechanical oscillatory behavior of equipment.
NEW QUESTION # 56
According to API 541, determination of efficiency and power, locked-rotor current, power factor, torque, full- load current and slip are some of the tests verified when performing a:
Answer: D
Explanation:
The correct answer isAbecause the group of performance items listed in the question-efficiency, power, locked-rotor current, power factor, torque, full-load current, and slip-belongs to acomplete testfor large electric motors under API 541 practice. A complete test is broader than a routine production test because it verifies the motor's full performance characteristics, not just basic manufacturing acceptability. These measurements are used to confirm that the motor meets its guaranteed operating and starting characteristics and that its electrical and mechanical performance aligns with the design and specification requirements.
Aroutine testis normally more limited and is intended to confirm standard production quality on each motor, such as winding resistance, insulation checks, no-load current, vibration, or similar baseline acceptance items.
Adesign testis generally associated with proving a design type rather than verifying all ordered motor performance data on a specific unit. Acompliance testis not the best match for this defined set of performance determinations. In API-aligned source inspection, these performance verifications are associated with thecomplete test, makingoption Athe correct answer.
NEW QUESTION # 57
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