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2 posts were merged into an existing topic: Pro App Support - Report Bugs Here

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  • 1. Where isolated metal water piping systems are installed in a multiple-occupancy building, the water pipes can be bonded with bonding jumpers.
    Your Answer: True
    Correct Answer: False
    Help: NFPA 70-2017 Section 250.104(A)(2)
1 Like
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  1. What is the minimum acceptable test limit for an ASTM D1816 (2mm gap) test on mineral oil used in new 69kV equipment?**
    Your Answer: 45kV
    Correct Answer: 55kV
    Help: NETA ATS-2021 Table 100.4.1

ATS refers to 69 KV AND BELOW to 45kV Min
If above 69kV its 55kV

1 Like
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3 posts were split to a new topic: Which capacitor banks would provide desired power factor?

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Thank you to everyone for reporting problems and providing solutions. We are working to verify and make the necessary corrections.

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2 posts were merged into an existing topic: Account Recovery Support

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  • 1. Watt is a unit of:
    Your Answer: Real power
    Correct Answer: A and D
    Help: See Watt

This is an example of why it would be better just to see the whole test. How can I understand why I was wrong if I don’t know what D is. Does anyone have any insight into what D is in this question?

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fall protection has different hieghts for different industries. you must specify the industry

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you need to be more specific about the approach of an unqualified worker in the limited zone

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I am not sure if this is the correct spot for this comment but I have a question that asked me to convert a temperature difference and C * 1.8 = F should have been the correct answer but it was not.

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Thanks to everyone reporting issues and helping us improve. Please be sure to include the question text in your reports to help us pinpoint exactly which item to review.

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During a thermographic inspection, you measure a 50°C phase to phase temperature rise on the line side of a fused disconnect. Your customer requests a report in Fahrenheit. Convert the temperature rise for him.
Your Answer: 90°F
Correct Answer: 122°F
Help: Multiply °C by 1.8 (or 9/5) and add 32 to get °F.

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:thinking:

f-to-c-question
f-to-c-question832×296 19.1 KB

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  • 1. What is the minimum acceptable test limit for an ASTM D1816 (1mm gap) test on mineral oil used in new 69kV equipment?
    Your Answer: 25kV
    Correct Answer: 30kV
    Help: NETA ATS-2021 Table 100.4.1
    TABLE shows <=69 is 25kV and >69 <230 is 30kV
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That is the formula to convert one temperature to another. The Fahrenheit and Celsius scales have different starting points which is where the 32 comes from. For example if it is 20C outside it is 68F (20C * 1.8 + 32 = 68) But if it rises 20C to raise the temperature to 40C that is does not mean it raises 68F to a temp of 136F, it will only raise 20C * 1.8 = 36F to a temperature of 104F. This is because the for every 1C rise there is a 1.8F rise. For the final temp we need to factor in the 32 offset 40C *1.8 + 32 =104. In the last calculation we use +32 because this is a temperature not a temperature change.
Another quick example 20C + 1C =21C is equivalent to 68F + 1.8F = 69.8F