航海英語船舶動力裝置單項(xiàng)選擇題每日一練(2019.01.11)

來源：考試資料網(wǎng)

1 What is the purpose of the intake/exhaust valves in a diesel engine? （）

2 My ship’s engine responds well to telegraph orders and takes about 80 seconds to reverse from full speed ahead to full speed astern.This sentence（）.

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3 Generally speaking，the fuel injected into a marine diesel engine combustion chamber is ignited by（）.

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4 Diesel engines obtain combustion air through turbo chargers，blowers，or（）.

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5 On a single-screw vessel the stern frame（）.

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