單項選擇題The thrust from the propeller to the hull of the ship is transferred by()

A.tie rod
B.thrust block
C.bedplate of main engine
D.frame of main engine


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2.單項選擇題Which of the followings will affect the spray of fuel oil?()

A.coke deposits
B.cylinder water temperature
C.asphalt in fuel oil
D.lub oil

3.單項選擇題When the direction handle of telegraph is moved, the relative position of camshaft and crankshaft will be()

A.changed accordingly
B.unchanged
C.positioned ahead
D.positioned astern

4.單項選擇題Which one of the followings may not be checked before engine starting?()

A.tank level
B.Various filters
C.Drains
D.seawater temperature

5.單項選擇題The is employed to warm up a large diesel engine before its starting()

A.hot air
B.hot boiler water
C.cylinder water
D.hot seawater