There is no set standard for determining if a motor winding is good or bad. Some industries use a standard of 1 megohm per 100 volts. Others use 2 megohms per 100 volts. Other industries use a flat standard such as 1.5 to 15 megohms = Poor, 15 to 50 megohms = Fair, and 50 to ____ megohms = Good.
A) 100
B) 150
C) 200
D) 250

Question

Quizplus · Accepted Answer

The given standards are not consistent and vary across industries. However, the flat standard of 1.5 to 15 megohms = Poor, 15 to 50 megohms = Fair, and 50 to 200 megohms = Good seems like the most practical choice as it provides clear categories and covers a broad range. Option C is the value that fits in the range of "Good" category.

There Is No Set Standard for Determining If a Motor