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Q1. (a) With reference to the insulation testing of marine electrical plant:

(i). State the reason for insulation testing:

(ii). State the precautions to be observed when testing intrinsically safe equipment

(iii). Explain the procedure for insulation testing of 440 V motor.

(b). Describe the overhaul of a D.C. motor which has been subject to excessively damp condition or flooding with seawater.