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Q7. (a) Outline the five-step safety briefing you will give to the junior electrical engineer regarding safe entry and cleaning procedures inside the dead main switchboard. (5)

(b) Explain the protocol for issuing and closing a high-voltage or low-voltage Permit to Work for switchboard maintenance under the ship's Safety Management System. (6)

(c) Describe the post-maintenance verification and power-restoration sequence you will supervise before declaring the main switchboard fully operational. (5)