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The four-stroke cycle begins when the piston is in its Top Dead Center. According to Taylor in Introduction to Marine Engineering, "The four-stroke cycle is completed in four strokes of the piston, or two revolutions of the crankshaft." (op.cit., p. 8). Consider the piston at the top of its stroke, a position known as Top Dead Center, followed by A, B, C, D cycles and choose the option in which the four-stroke cycle is correctly described respectively. Imagem associada para resolução da questão
 (Source: International Maritime Language Programme)
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Which of the following options CAN NOT be inferred from the text?
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What can be inferred from the text?
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In lines 58-59: ‘(…) major accidents have often been the catalysts for key changes(…)’, the underlined word can be replaced by:
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In lines 16-17: ‘Despite this, safety and shipping 1912-2012: from Titanic to Costa Concordia, (…)’, the underlined word refers to:
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