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Engine_2014 : Electricity - 2255/2299
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With regard to the maintenance of electrical generating machines with insulated pedestal bearings, what practice should be avoided?
A) touching the bearing shell while the machine running
B) using a megohm meter with the machine disassembled to determine insulation values
C) painting or allowing grease build up on the insulated area
D) cleaning and removing grease from the insulated area
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