Prior to getting underway on the navigable waters of the United States, within 12 hours, according to 33 CFR regulations governing ports and waterways safety, certain tests are required. Which of the following are included in the tests that must be performed? 1) Operation of the main propulsion machinery, ahead and astern. 2) Operation of the low lube oil pressure trip on the main engine. 3) Operation of the reverse power relay on the emergency generator. 4) Operation of the over speed trip on the ship's service diesel generator. 5) Operation of the emergency generator.